Fertilizing method for winter wheat

Abstract

The invention discloses a winter wheat fertilizing method, and belongs to the technical field of plant planting. The winter wheat fertilizing method comprises the following steps: diluting a fertilizer into a water fertilizer by adopting a drip irrigation mode, and fertilizing, the dropping amount is 2.0 to 2.6 L / h; the formula fertilizer A is applied according to 8-10 kg / mu in the seedling emergence period; the formula fertilizer A is applied according to 8-10 kg / mu in the early stage of the reviving and jointing stage, the formula fertilizer A is applied according to 8-10 kg / mu in the later stage of the reviving and jointing stage, and the formula fertilizer B is applied according to 2-3 kg / mu in the later stage of the reviving and jointing stage; 6-8 kg of the formula fertilizer C and 2-3 kg of the formula fertilizer B are applied per mu in the booting and flowering period; the formula fertilizer C is applied according to 6-8 kg / mu in the grouting mature period. According to the fertilization method, the variety and dosage of the fertilizer are controlled in different periods, fertilization is conducted in a drip irrigation mode, and the yield of winter wheat is increased.

Description

Technical Field

[0001] The invention relates to the technical field of plant planting, and in particular to a fertilization method for winter wheat. Background Art

[0002] The annual yield of winter wheat in Xiangyang is not high. According to statistics, the per-acre yield of winter wheat in Xiangyang in 2023 is only 724 kilograms, which is lower than the national average. On the one hand, this is because Xiangyang is located in the north-south climate transition zone, and various climate fluctuations are large, which has a more prominent impact on wheat production. In particular, extreme weather has occurred frequently in recent years, posing a threat to the safe production of wheat in this wheat area. On the other hand, due to the local traditional "one-shot" fertilization mode, fertilizers are all invested in large quantities in the form of seed fertilizers, resulting in high fertilizer concentrations in the early stage, uneven seedlings, and weak seedlings. As winter wheat grows, fertilizers in the soil are gradually lost, resulting in problems such as fertilizer loss in the later stage, many shriveled grains, and low thousand-grain weight. These factors are not conducive to increasing the yield of winter wheat in Xiangyang.

[0003] How to effectively apply fertilizers to increase winter wheat yield is a problem that needs to be solved by existing technologies. Summary of the invention

[0004] The purpose of the present invention is to overcome the above technical deficiencies, provide a method for fertilizing winter wheat, and solve the technical problem of how to effectively fertilize to increase the yield of winter wheat in the prior art.

[0005] In order to achieve the above technical purpose, the technical solution of the present invention provides a winter wheat fertilization method, comprising:

[0006] Use drip irrigation to dilute the fertilizer into water fertilizer for fertilization; the drip rate is 2.0-2.6 liters / hour;

[0007] Apply A-formulation fertilizer at 8-10kg / mu during the seedling stage;

[0008] In the early stage of the regreening and jointing period, apply 8-10kg / mu of formula A fertilizer, and in the late stage of the regreening and jointing period, apply 8-10kg / mu of formula A fertilizer and 2-3kg / mu of formula B fertilizer;

[0009] During the booting and flowering period, apply 6-8kg / mu of formula C fertilizer and 2-3kg / mu of formula B fertilizer;

[0010] Apply C formula fertilizer at 6-8kg / mu during the grain filling and maturity period;

[0011] In the A formula fertilizer, calculated by mass percentage, the nitrate nitrogen content is 3.1%-3.2%, the ammonium nitrogen content is 2.1%-2.3%, the amide nitrogen content is 24.3%-25.5%, the phosphorus pentoxide content is 8.5%-10.5%, the potassium oxide content is 9%-11.5%, the ferrous sulfate content is 0.1%-0.2%, the manganese sulfate content is 0.07%-0.08%, the zinc sulfate content is 0.065%-0.08%, the copper sulfate content is 0.035%-0.04%, the boric acid content is 0.03%-0.04%, and the sodium molybdate content is 0.01%-0.015%;

[0012] In the B formula fertilizer, calculated by mass percentage, the nitrate nitrogen content is 5.0% to 6.5%, the ammonium nitrogen content is 3.0% to 4.5%, the phosphorus pentoxide content is 29% to 30.5%, the potassium oxide content is 18.5%-21.5%, the magnesium content is 0.58% to 0.61%, the ferrous sulfate content is 0.045% to 0.052%, the manganese sulfate content is 0.02% to 0.03%, the zinc sulfate content is 0.022% to 0.028%, the copper sulfate content is 0.011% to 0.015%, the boric acid content is 0.012% to 0.013%, and the sodium molybdate content is 0.004% to 0.007%;

[0013] In the C formula fertilizer, calculated by mass percentage, the nitrate nitrogen content is 5.8%-6.5%, the ammonium nitrogen content is 3.2%-4.5%, the amide nitrogen content is 9.5%-10.5%, the phosphorus pentoxide content is 9.5%-10%, the potassium oxide content is 29%-30.5%, the magnesium content is 0.35%-0.45%, the potassium sulfate content is 0.48%-0.51%, the ferrous sulfate content is 0.05%-0.08%, the manganese sulfate content is 0.03%-0.04%, the zinc sulfate content is 0.035%-0.038%, the copper sulfate content is 0.01%-0.02%, the boric acid content is 0.015%-0.019%, and the sodium molybdate content is 0.003%-0.009%.

[0014] In any embodiment, the dilution factor of the formula fertilizer A at the seedling emergence stage is 250-300 times.

[0015] In any embodiment, the dilution factor of the formula fertilizer A in the early stage of the greening and jointing period is 200-300 times.

[0016] In any embodiment, in the late stage of the regreening and jointing period, the dilution factor of the A formula fertilizer is 200-300 times, and the dilution factor of the B formula fertilizer is 300-350 times.

[0017] In any embodiment, at the booting and flowering stage, the dilution multiple of the C formula fertilizer is 300-400 times, and the dilution multiple of the B formula fertilizer is 200-250 times.

[0018] In any embodiment, the dilution factor of Formula C fertilizer is 300-400 times at the grain filling maturity stage.

[0019] In any embodiment, the drip irrigation tapes are laid at a spacing of 55-60 cm.

[0020] In any embodiment, the dripper spacing is 25-30 cm.

[0021] In any embodiment, the sowing rate of winter wheat is 17-20 kg / mu.

[0022] Compared with the prior art, the beneficial effects of the present invention include: fertilization is carried out by drip irrigation; the dripping amount is 2.0-2.6 liters / hour; 8-10 kg / mu of formula A fertilizer is applied at the seedling stage; 8-10 kg / mu of formula A fertilizer is applied at the early stage of the regreening and jointing stage, 8-10 kg / mu of formula A fertilizer is applied at the late stage of the regreening and jointing stage, and 2-3 kg / mu of formula B fertilizer is applied; 6-8 kg / mu of formula C fertilizer is applied at the booting and flowering stage, and 2-3 kg / mu of formula B fertilizer is applied; 6-8 kg / mu of formula C fertilizer is applied at the grain filling and maturity stage; in the formula A fertilizer, nitrogen is calculated by mass percentage. The content of nitrogen is 29.5% to 31%, the content of phosphorus pentoxide is 8.5% to 10.5%, and the content of potassium oxide is 9% to 11.5%; in the B formula fertilizer, calculated by mass percentage, the nitrogen content is 8% to 11%, the content of phosphorus pentoxide is 29% to 30.5%, and the content of potassium oxide is 18.5% to 21.5%; in the C formula fertilizer, calculated by mass percentage, the nitrogen content is 18.5% to 21.5%, the content of phosphorus pentoxide is 9.5% to 10%, and the content of potassium oxide is 29% to 30.5%. The type and amount of fertilizers are controlled in different periods, and drip irrigation is used for fertilization, which increases the yield of winter wheat. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is the nitrogen content in the winter wheat grains obtained by processing in Example 1 of the present invention and Comparative Example 1.

[0024] Figure 2 It is the phosphorus content in the winter wheat grains obtained by processing Example 1 of the present invention and Comparative Example 1.

[0025] Figure 3 It is the potassium content in the winter wheat grains obtained by processing in Example 1 of the present invention and Comparative Example 1. DETAILED DESCRIPTION

[0026] The "range" disclosed in the present application is defined in the form of a lower limit and an upper limit, and a given range is defined by selecting a lower limit and an upper limit, and the selected lower limit and upper limit define the boundaries of the particular range. The range defined in this way can be inclusive or exclusive of the end values, and can be arbitrarily combined, that is, any lower limit can be combined with any upper limit to form a range. For example, if a range of 60 to 120 and 80 to 110 is listed for a particular parameter, it is understood that a range of 60 to 110 and 80 to 120 is also expected. In addition, if the minimum range values ​​1 and 2 are listed, and if the maximum range values ​​3, 4 and 5 are listed, the following ranges can all be expected: 1 to 3, 1 to 4, 1 to 5, 2 to 3, 2 to 4 and 2 to 5. In the present application, unless otherwise specified, the numerical range "a to b" represents an abbreviation of any real number combination between a and b, where a and b are both real numbers. For example, the numerical range "0-5" means that all real numbers between "0-5" are listed in this document, and "0-5" is just an abbreviation of these numerical combinations. In addition, when a parameter is expressed as an integer ≥ 2, it is equivalent to disclosing that the parameter is, for example, an integer of 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, etc.

[0027] If there is no special explanation, the "include" and "comprising" mentioned in this application are open-ended or closed-ended. For example, the "include" and "comprising" may mean that other components not listed may also be included or only the listed components may be included or only the listed components may be included.

[0028] If not specifically stated, in this application, the term "or" is inclusive. For example, the phrase "A or B" means "A, B, or both A and B". More specifically, any of the following conditions satisfies the condition "A or B": A is true (or exists) and B is false (or does not exist); A is false (or does not exist) and B is true (or exists); or both A and B are true (or exist).

[0029] This specific embodiment provides a method for fertilizing winter wheat, including: diluting fertilizer into water fertilizer by drip irrigation for fertilization; the drip rate is 2.0-2.6 liters / hour, the drip irrigation tape is laid at a spacing of 55-60 cm; the dripper spacing is 25-30 cm;

[0030] Apply A-formulation fertilizer at 8-10kg / mu during the seedling stage;

[0031] In the early stage of the regreening and jointing period, apply 8-10kg / mu of formula A fertilizer, and in the late stage of the regreening and jointing period, apply 8-10kg / mu of formula A fertilizer and 2-3kg / mu of formula B fertilizer;

[0032] During the booting and flowering period, apply 6-8kg / mu of formula C fertilizer and 2-3kg / mu of formula B fertilizer;

[0033] Apply C formula fertilizer at 6-8kg / mu during the grain filling and maturity period;

[0034] In the formula A fertilizer, calculated by mass percentage, the nitrate nitrogen content is 3.1%-3.2%, the ammonium nitrogen content is 2.1%-2.3%, the amide nitrogen content is 24.3%-25.5%, the phosphorus pentoxide content is 8.5%-10.5%, the potassium oxide content is 9%-11.5%, the ferrous sulfate content is 0.1%-0.2%, the manganese sulfate content is 0.07%-0.08%, the zinc sulfate content is 0.065%-0.08%, the copper sulfate content is 0.035%-0.04%, the boric acid content is 0.03%-0.04%, and the sodium molybdate content is 0.01%-0.015%.

[0035] In the B formula fertilizer, calculated by mass percentage, the nitrate nitrogen content is 5.0% to 6.5%, the ammonium nitrogen content is 3.0% to 4.5%, the phosphorus pentoxide content is 29% to 30.5%, the potassium oxide content is 18.5%-21.5%, the magnesium content is 0.58% to 0.61%, the potassium sulfate content is 0.75% to 0.81%, the ferrous sulfate content is 0.045% to 0.052%, the manganese sulfate content is 0.02% to 0.03%, the zinc sulfate content is 0.022% to 0.028%, the copper sulfate content is 0.011% to 0.015%, the boric acid content is 0.012% to 0.013%, and the sodium molybdate content is 0.004% to 0.007%;

[0036] In the C formula fertilizer, calculated by mass percentage, the nitrate nitrogen content is 5.8%-6.5%, the ammonium nitrogen content is 3.2%-4.5%, the amide nitrogen content is 9.5%-10.5%, the phosphorus pentoxide content is 9.5%-10%, the potassium oxide content is 29%-30.5%, the magnesium content is 0.35%-0.45%, the potassium sulfate content is 0.48%-0.51%, the ferrous sulfate content is 0.05%-0.08%, the manganese sulfate content is 0.03%-0.04%, the zinc sulfate content is 0.035%-0.038%, the copper sulfate content is 0.01%-0.02%, the boric acid content is 0.015%-0.019%, and the sodium molybdate content is 0.003%-0.009%;

[0037] At the seedling stage, the dilution multiple of formula A fertilizer is 250-300 times; at the early stage of the regreening and jointing stage, the dilution multiple of formula A fertilizer is 200-300 times; at the late stage of the regreening and jointing stage, the dilution multiple of formula A fertilizer is 200-300 times, and the dilution multiple of formula B fertilizer is 300-350 times; at the booting and flowering stage, the dilution multiple of formula C fertilizer is 300-400 times, and the dilution multiple of formula B fertilizer is 200-250 times; at the grain filling and maturity stage, the dilution multiple of formula C fertilizer is 300-400 times;

[0038] The sowing rate of the winter wheat is 17-20 kg / mu.

[0039] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0040] In the present invention, reference is made to “some embodiments”, “this embodiment”, examples, etc., which describe a subset of all possible embodiments, but it can be understood that “some embodiments” may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict.

[0041] If similar descriptions of "first / second" appear in the application documents, the following instructions are added. In the following description, the terms "first\second\third" involved are merely used to distinguish similar objects and do not represent a specific ordering of the objects. It can be understood that "first\second\third" can be interchanged in a specific order or sequence where permitted, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein.

[0042] In this embodiment, the term "and / or" is merely a description of the association relationship between associated objects, indicating that three relationships may exist. For example, object A and / or object B may represent three situations: object A exists alone, object A and object B exist at the same time, and object B exists alone.

[0043] Hereinafter, the embodiments of the present application will be described. The embodiments described below are exemplary and are only used to explain the present application, and should not be construed as limiting the present application. If no specific techniques or conditions are indicated in the embodiments, the techniques or conditions described in the literature in this area or the product specifications are used. If the manufacturer is not indicated in the reagents or instruments used, they are all conventional products that can be obtained commercially.

[0044] The relevant equipment used in the drip irrigation of this embodiment is all from the existing technology.

[0045] In the following embodiments, a water-fertilizer integration mode is adopted, and the irrigation volume per irrigation is 30-50 cubic meters per mu.

[0046] Example 1

[0047] This embodiment provides a method for fertilizing winter wheat, including: diluting fertilizer into water fertilizer by drip irrigation for fertilization; the dripping rate is 2.0 liters / hour, the drip irrigation tape is laid at a spacing of 55 cm; the dripper spacing is 28 cm;

[0048] Apply formula A fertilizer at 8kg / mu during the seedling stage;

[0049] In the early stage of the regreening and jointing period, apply 9kg / mu of formula A fertilizer, and in the late stage of the regreening and jointing period, apply 9kg / mu of formula A fertilizer and 2.5kg / mu of formula B fertilizer;

[0050] During the booting and flowering period, apply 6kg / mu of formula C fertilizer and 3kg / mu of formula B fertilizer;

[0051] At the grain-filling maturity stage, apply C formula fertilizer at 6kg / mu;

[0052] In the A formula fertilizer, calculated by mass percentage, the nitrate nitrogen content is 3.2%, the ammonium nitrogen content is 2.2%, the amide nitrogen content is 24.8%, the phosphorus pentoxide content is 9%, the potassium oxide content is 11%, the ferrous sulfate content is 0.2%, the manganese sulfate content is 0.07%, the zinc sulfate content is 0.07%, the copper sulfate content is 0.04%, the boric acid content is 0.04%, and the sodium molybdate content is 0.015%;

[0053] In the B formula fertilizer, calculated by mass percentage, the nitrate nitrogen content is 5.0%, the ammonium nitrogen content is 4.5%, the phosphorus pentoxide content is 30%, the potassium oxide content is 19%, the magnesium content is 0.59%, the potassium sulfate content is 0.78%, the ferrous sulfate content is 0.05%, the manganese sulfate content is 0.02%, the zinc sulfate content is 0.025%, the copper sulfate content is 0.013%, the boric acid content is 0.012%, and the sodium molybdate content is 0.005%;

[0054] In the C formula fertilizer, calculated by mass percentage, the nitrate nitrogen content is 6%, the ammonium nitrogen content is 3.5%, the amide nitrogen content is 10%, the phosphorus pentoxide content is 9.5%, the potassium oxide content is 29%, the magnesium content is 0.35%, the potassium sulfate content is 0.5%, the ferrous sulfate content is 0.06%, the manganese sulfate content is 0.03%, the zinc sulfate content is 0.037%, the copper sulfate content is 0.02%, the boric acid content is 0.017%, and the sodium molybdate content is 0.005%;

[0055] The dilution multiple of Formula A fertilizer is 280 times at the seedling stage; the dilution multiple of Formula A fertilizer is 200 times at the early stage of the regreening and jointing stage; the dilution multiple of Formula A fertilizer is 250 times at the late stage of the regreening and jointing stage, and the dilution multiple of Formula B fertilizer is 300 times; the dilution multiple of Formula C fertilizer is 350 times at the booting and flowering stage, and the dilution multiple of Formula B fertilizer is 200 times; the dilution multiple of Formula C fertilizer is 350 times at the grain filling and maturity stage;

[0056] The sowing rate of the winter wheat is 20 kg / mu.

[0057] Example 2

[0058] This embodiment provides a method for fertilizing winter wheat, including: diluting fertilizer into water fertilizer by drip irrigation for fertilization; the dripping rate is 2.2 liters / hour, the drip irrigation tape is laid at a spacing of 60 cm; the dripper spacing is 30 cm;

[0059] Apply formula A fertilizer at 9kg / mu during the seedling stage;

[0060] In the early stage of the regreening and jointing period, apply 9kg / mu of formula A fertilizer, and in the late stage of the regreening and jointing period, apply 8kg / mu of formula A fertilizer and 2.5kg / mu of formula B fertilizer;

[0061] During the booting and flowering period, apply 7kg / mu of formula C fertilizer and 2.5kg / mu of formula B fertilizer;

[0062] At the grain-filling maturity stage, apply C formula fertilizer at 7kg / mu;

[0063] In the A formula fertilizer, calculated by mass percentage, the nitrate nitrogen content is 3.1%, the ammonium nitrogen content is 2.2%, the amide nitrogen content is 25.5%, the phosphorus pentoxide content is 10.5%, the potassium oxide content is 10%, the ferrous sulfate content is 0.1%, the manganese sulfate content is 0.08%, the zinc sulfate content is 0.08%, the copper sulfate content is 0.035%, the boric acid content is 0.03%, and the sodium molybdate content is 0.01%;

[0064] In the B formula fertilizer, calculated by mass percentage, the nitrate nitrogen content is 6.5%, the ammonium nitrogen content is 3.0%, the phosphorus pentoxide content is 29%, the potassium oxide content is 20%, the magnesium content is 0.6%, the potassium sulfate content is 0.75%, the ferrous sulfate content is 0.045%, the manganese sulfate content is 0.03%, the zinc sulfate content is 0.022%, the copper sulfate content is 0.011%, the boric acid content is 0.012%, and the sodium molybdate content is 0.006%;

[0065] In the C formula fertilizer, calculated by mass percentage, the nitrate nitrogen content is 5.8%, the ammonium nitrogen content is 3.2%, the amide nitrogen content is 10.2%, the phosphorus pentoxide content is 9.8%, the potassium oxide content is 29.5%, the magnesium content is 0.4%, the potassium sulfate content is 0.51%, the ferrous sulfate content is 0.08%, the manganese sulfate content is 0.04%, the zinc sulfate content is 0.038%, the copper sulfate content is 0.01%, the boric acid content is 0.018%, and the sodium molybdate content is 0.009%;

[0066] The dilution multiple of Formula A fertilizer is 250 times at the seedling stage; the dilution multiple of Formula A fertilizer is 250 times at the early stage of the regreening and jointing stage; the dilution multiple of Formula A fertilizer is 250 times at the late stage of the regreening and jointing stage, and the dilution multiple of Formula B fertilizer is 320 times; the dilution multiple of Formula C fertilizer is 300 times at the booting and flowering stage, and the dilution multiple of Formula B fertilizer is 230 times; the dilution multiple of Formula C fertilizer is 300 times at the grain filling and maturity stage;

[0067] The sowing rate of the winter wheat is 17 kg / mu.

[0068] Example 3

[0069] This embodiment provides a method for fertilizing winter wheat, including: diluting fertilizer into water fertilizer by drip irrigation for fertilization; the dripping rate is 2.4 liters / hour, the drip irrigation tape is laid at a spacing of 58 cm; the dripper spacing is 25 cm;

[0070] Apply formula A fertilizer at 9kg / mu during the seedling stage;

[0071] In the early stage of the re-greening and jointing period, apply 8kg / mu of formula A fertilizer, and in the late stage of the re-greening and jointing period, apply 9kg / mu of formula A fertilizer and 2kg / mu of formula B fertilizer;

[0072] During the booting and flowering period, apply 8kg / mu of formula C fertilizer and 3kg / mu of formula B fertilizer;

[0073] At the grain-filling maturity stage, apply C formula fertilizer at 7kg / mu;

[0074] In the A formula fertilizer, calculated by mass percentage, the nitrate nitrogen content is 3.2%, the ammonium nitrogen content is 2.3%, the amide nitrogen content is 25.2%, the phosphorus pentoxide content is 9.5%, the potassium oxide content is 11.5%, the ferrous sulfate content is 0.2%, the manganese sulfate content is 0.08%, the zinc sulfate content is 0.075%, the copper sulfate content is 0.035%, the boric acid content is 0.04%, and the sodium molybdate content is 0.012%;

[0075] In the B formula fertilizer, calculated by mass percentage, the nitrate nitrogen content is 6.2%, the ammonium nitrogen content is 3.5%, the phosphorus pentoxide content is 30.5%, the potassium oxide content is 18.5%, the magnesium content is 0.58%, the potassium sulfate content is 0.81%, the ferrous sulfate content is 0.048%, the manganese sulfate content is 0.02%, the zinc sulfate content is 0.028%, the copper sulfate content is 0.015%, the boric acid content is 0.013%, and the sodium molybdate content is 0.004%;

[0076] In the C formula fertilizer, calculated by mass percentage, the nitrate nitrogen content is 6.2%, the ammonium nitrogen content is 4.0%, the amide nitrogen content is 9.5%, the phosphorus pentoxide content is 9.6%, the potassium oxide content is 30%, the magnesium content is 0.45%, the potassium sulfate content is 0.51%, the ferrous sulfate content is 0.08%, the manganese sulfate content is 0.04%, the zinc sulfate content is 0.038%, the copper sulfate content is 0.01%, the boric acid content is 0.018%, and the sodium molybdate content is 0.009%;

[0077] The dilution multiple of Formula A fertilizer is 300 times at the seedling stage; the dilution multiple of Formula A fertilizer is 250 times at the early stage of the regreening and jointing stage; the dilution multiple of Formula A fertilizer is 200 times at the late stage of the regreening and jointing stage, and the dilution multiple of Formula B fertilizer is 350 times; the dilution multiple of Formula C fertilizer is 350 times at the booting and flowering stage, and the dilution multiple of Formula B fertilizer is 250 times; the dilution multiple of Formula C fertilizer is 350 times at the grain filling and maturity stage;

[0078] The sowing rate of the winter wheat is 18 kg / mu.

[0079] Example 4

[0080] This embodiment provides a method for fertilizing winter wheat, including: diluting fertilizer into water fertilizer by drip irrigation for fertilization; the dripping rate is 2.6 liters / hour, the drip irrigation tape is laid at a spacing of 56 cm; the dripper spacing is 26 cm;

[0081] Apply formula A fertilizer at 10kg / mu during the seedling stage;

[0082] In the early stage of the regreening and jointing period, apply 10kg / mu of formula A fertilizer, and in the late stage of the regreening and jointing period, apply 10kg / mu of formula A fertilizer and 3kg / mu of formula B fertilizer;

[0083] During the booting and flowering period, apply 7kg / mu of formula C fertilizer and 2kg / mu of formula B fertilizer;

[0084] At the grain-filling maturity stage, apply C formula fertilizer at 8kg / mu;

[0085] In the A formula fertilizer, calculated by mass percentage, the nitrate nitrogen content is 3.1%, the ammonium nitrogen content is 2.1%, the amide nitrogen content is 24.3%, the phosphorus pentoxide content is 8.5%, the potassium oxide content is 9%, the ferrous sulfate content is 0.1%, the manganese sulfate content is 0.07%, the zinc sulfate content is 0.065%, the copper sulfate content is 0.04%, the boric acid content is 0.03%, and the sodium molybdate content is 0.01%;

[0086] In the B formula fertilizer, calculated by mass percentage, the nitrate nitrogen content is 5.5%, the ammonium nitrogen content is 4%, the phosphorus pentoxide content is 30%, the potassium oxide content is 21.5%, the magnesium content is 0.61%, the potassium sulfate content is 0.8%, the ferrous sulfate content is 0.052%, the manganese sulfate content is 0.03%, the zinc sulfate content is 0.025%, the copper sulfate content is 0.012%, the boric acid content is 0.013%, and the sodium molybdate content is 0.007%;

[0087] In the C formula fertilizer, calculated by mass percentage, the nitrate nitrogen content is 6.5%, the ammonium nitrogen content is 4.5%, the amide nitrogen content is 10.5%, the phosphorus pentoxide content is 10%, the potassium oxide content is 30.5%, the magnesium content is 0.42%, the potassium sulfate content is 0.49%, the ferrous sulfate content is 0.07%, the manganese sulfate content is 0.03%, the zinc sulfate content is 0.036%, the copper sulfate content is 0.01%, the boric acid content is 0.019%, and the sodium molybdate content is 0.007%;

[0088] The dilution multiple of Formula A fertilizer is 260 times at the seedling stage; the dilution multiple of Formula A fertilizer is 300 times at the early stage of the regreening and jointing stage; the dilution multiple of Formula A fertilizer is 300 times at the late stage of the regreening and jointing stage, and the dilution multiple of Formula B fertilizer is 300 times; the dilution multiple of Formula C fertilizer is 400 times at the booting and flowering stage, and the dilution multiple of Formula B fertilizer is 230 times; the dilution multiple of Formula C fertilizer is 400 times at the grain filling and maturity stage;

[0089] The sowing rate of the winter wheat is 19 kg / mu.

[0090] Comparative Example 1

[0091] The difference between this comparative example and Example 1 is that the fertilizer is not applied by drip irrigation, but compound fertilizer 22-10-5 is applied at one time by a seeder together with the seeds and fertilizer during sowing, and the application amount is 43.5 kg / mu.

[0092] Comparative Example 2

[0093] The fertilization method for winter wheat in this comparative example is different from that in Example 1 in that only Formula A fertilizer is used, and Formula B fertilizer and Formula C fertilizer in Example 1 are replaced with an equal amount of Formula A fertilizer.

[0094] Comparative Example 3

[0095] The fertilization method for winter wheat in this comparative example is different from that in Example 1 in that only Formula B fertilizer is used, and Formula A fertilizer and Formula C fertilizer in Example 1 are replaced with an equal amount of Formula B fertilizer.

[0096] Comparative Example 4

[0097] The fertilization method for winter wheat in this comparative example is different from that in Example 1 in that only Formula C fertilizer is used, and Formula A fertilizer and Formula B fertilizer in Example 1 are replaced by an equal amount of Formula C fertilizer.

[0098] According to the fertilization methods of Examples 1-4 and Comparative Examples 1-4, relevant tests were conducted in Shiqiao Town, Xiangyang City, Hubei Province. The area of ​​the plot used in each Example and Comparative Example was 10 mu. The results are shown in Table 1.

[0099] Table 1 Changes in growth and yield of winter wheat under different treatments

[0100] Plots Plant height / cm Spike length / cm Number of ears Number of grains per ear Thousand-grain weight / g Actual yield / kg Example 1 76.8 9.0 640 53 57.90 645.25 Example 2 78.3 9.1 644 55 57.16 655.62 Example 3 77.0 9.3 635 52 56.74 651.33 Example 4 77.3 8.8 636 51 54.73 650.02 Comparative Example 1 71.0 8.3 490 47 44.80 531.63 Comparative Example 2 69.7 8.2 476 48 45.23 488.75 Comparative Example 3 67.6 7.7 482 43 41.98 485.98 Comparative Example 4 68.2 7.9 487 45 42.15 487.56

[0101] It can be seen from Table 1 that the winter wheat obtained by the fertilization method of Examples 1-4 grows better and has a higher yield.

[0102] Combination Figure 1-3 The winter wheat obtained by the fertilization method of Example 1 has higher contents of nitrogen, phosphorus and potassium than those obtained by the fertilization method of Comparative Example 1. The contents of nitrogen, phosphorus and potassium of the winter wheat obtained by the fertilization method of Example 1 are 2.8%, 0.38% and 0.44%, respectively; the contents of nitrogen, phosphorus and potassium of the winter wheat obtained by the fertilization method of Comparative Example 1 are 2.3%, 0.3% and 0.37%, respectively.

[0103] The changes in trace element contents in the winter wheat grains treated differently in Examples 1-4 and Comparative Example 1 were detected, and the results are shown in Table 2.

[0104] Table 2 Changes of trace element contents in winter wheat grains under different treatments

[0105]

[0106] As can be seen from Table 2, the trace element contents in the winter wheat grains treated by the treatment methods of Examples 1-4 are higher than those in Comparative Example 1. The sulfur and molybdenum contents in the grains are both low, almost 0, which may be because the contents themselves are lower than the detection limit of the detection method.

[0107] The specific implementation of the present invention described above does not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A method for fertilizing winter wheat, characterized in that: include: Use drip irrigation to dilute the fertilizer into water fertilizer for fertilization; the drip rate is 2.0-2.6 liters / hour; Apply A-formulation fertilizer at 8-10kg / mu during the seedling stage; In the early stage of the regreening and jointing period, apply 8-10kg / mu of formula A fertilizer, and in the late stage of the regreening and jointing period, apply 8-10kg / mu of formula A fertilizer and 2-3kg / mu of formula B fertilizer; During the booting and flowering period, apply 6-8kg / mu of formula C fertilizer and 2-3kg / mu of formula B fertilizer; Apply C formula fertilizer at 6-8kg / mu during the grain filling and maturity period; In the A formula fertilizer, calculated by mass percentage, the nitrate nitrogen content is 3.1%-3.2%, the ammonium nitrogen content is 2.1%-2.3%, the amide nitrogen content is 24.3%-25.5%, the phosphorus pentoxide content is 8.5%-10.5%, the potassium oxide content is 9%-11.5%, the ferrous sulfate content is 0.1%-0.2%, the manganese sulfate content is 0.07%-0.08%, the zinc sulfate content is 0.065%-0.08%, the copper sulfate content is 0.035%-0.04%, the boric acid content is 0.03%-0.04%, and the sodium molybdate content is 0.01%-0.015%; In the B formula fertilizer, calculated by mass percentage, the nitrate nitrogen content is 5.0% to 6.5%, the ammonium nitrogen content is 3.0% to 4.5%, the phosphorus pentoxide content is 29% to 30.5%, the potassium oxide content is 18.5%-21.5%, the magnesium content is 0.58% to 0.61%, the ferrous sulfate content is 0.045% to 0.052%, the manganese sulfate content is 0.02% to 0.03%, the zinc sulfate content is 0.022% to 0.028%, the copper sulfate content is 0.011% to 0.015%, the boric acid content is 0.012% to 0.013%, and the sodium molybdate content is 0.004% to 0.007%; In the C formula fertilizer, calculated by mass percentage, the nitrate nitrogen content is 5.8%-6.5%, the ammonium nitrogen content is 3.2%-4.5%, the amide nitrogen content is 9.5%-10.5%, the phosphorus pentoxide content is 9.5%-10%, the potassium oxide content is 29%-30.5%, the magnesium content is 0.35%-0.45%, the potassium sulfate content is 0.48%-0.51%, the ferrous sulfate content is 0.05%-0.08%, the manganese sulfate content is 0.03%-0.04%, the zinc sulfate content is 0.035%-0.038%, the copper sulfate content is 0.01%-0.02%, the boric acid content is 0.015%-0.019%, and the sodium molybdate content is 0.003%-0.009%.

2. The fertilization method for winter wheat according to claim 1, characterized in that: The dilution ratio of formula A fertilizer is 250-300 times during the seedling emergence stage.

3. The fertilization method for winter wheat according to claim 1, characterized in that: In the early stage of the greening and jointing period, the dilution ratio of formula A fertilizer is 200-300 times.

4. The fertilization method for winter wheat according to claim 1, characterized in that: In the late stage of the regreening and jointing period, the dilution ratio of formula A fertilizer is 200-300 times, and the dilution ratio of formula B fertilizer is 300-350 times.

5. The fertilization method for winter wheat according to claim 1, characterized in that: During the booting and flowering stage, the dilution ratio of formula C fertilizer is 300-400 times, and the dilution ratio of formula B fertilizer is 200-250 times.

6. The fertilization method for winter wheat according to claim 1, characterized in that: During the filling maturity period, the dilution ratio of formula C fertilizer is 300-400 times.

7. The fertilization method for winter wheat according to claim 1, characterized in that: The spacing between drip irrigation tapes is 55-60 cm.

8. The fertilization method for winter wheat according to claim 1, characterized in that: The distance between the drippers is 25-30 cm.

9. The fertilization method for winter wheat according to claim 1, characterized in that: The sowing rate of the winter wheat is 17-20 kg / mu.

Images