Mineral nutritional type rice seedling strengthening agent based on seedling raising substrate

Abstract

The invention discloses a mineral nutrition type rice seedling strengthening agent based on a seedling raising substrate. Each cubic meter of rice seedling raising substrate is prepared from the following components by weight: 0.01-5.0 kg of calcium salt in terms of calcium, 0.01-5.0 kg of magnesium salt in terms of magnesium, 0.01-5.0 kg of iron salt in terms of iron, 0.01-5.0 kg of manganese salt in terms of manganese and 0.01-5.0 kg of zinc salt in terms of zinc. The components of the seedling strengthening agent do not contain any hormone, the safety is high, mineral nutrient elements are added in the production process of the seedling raising substrate, the root-shoot ratio of rice seedlings is regulated and controlled, the seedling height is regulated and controlled, the seedling strengthening is promoted, and the universality is high.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural planting, and in particular relates to a mineral nutrition type rice seedling strengthening agent based on a seedling raising matrix. Background Art

[0002] As one of the most important food crops in the world, the yield and quality of rice are directly related to global food security and human living standards. In rice production, the rice seedling raising stage, as the starting point of the rice growth cycle, has a vital impact on subsequent growth and yield. As a new type of rice seedling raising special agent, rice seedling raising agent plays an important role in improving the quality of rice seedlings, enhancing disease resistance and stress resistance, promoting tillering, and increasing production and income.

[0003] In the current market, seedling strengthening agents usually exist as an independent agricultural material. During the rice seedling cultivation process, they are used to adjust the pH of the soil (matrix) to create a suitable soil environment for rice growth and improve the utilization rate of nutrients. They are applied by spraying or watering to provide nitrogen, phosphorus, potassium, zinc, iron, magnesium, sulfur, calcium and other nutrients, which can meet the basic needs of rice seedling growth and promote root development and aboveground growth. Built-in fungicides can effectively prevent and control common rice seedling diseases such as bacterial wilt and damping-off, reducing disease losses. Some seedling strengthening agents also contain growth regulators, which can regulate the growth rhythm of rice and make the seedlings grow stronger and more uniform. For rice seedling cultivation through seedling cultivation substrate, the requirements are: 1. The root system of rice seedlings is well developed, so that the substrate can be wrapped to form a good root ball, which is conducive to mechanized soil / substrate transplantation, promotes the rapid growth of rice after transplantation, and reduces the seedling acclimatization period; 2. Control the leggy growth / seedling height of the seedlings. Due to the requirements of mechanized transplantation, the rice seedlings require a certain height control, which cannot be too high, otherwise it is not conducive to mechanized transplanting. That is to say, a strong root system and a strong seedling are required, that is, a suitable root system / aboveground ratio. A developed root system is an inherent requirement for improving the stress resistance of rice seedlings; it is also the need for seedling root packing. Good root packing is conducive to transplanting by transplanter and bringing soil into the field. In the current market, some hormones are usually used to control seedling height and promote root growth. This brings many problems. For example, the use of hormones requires high concentration accuracy requirements. Too high or too low will be detrimental to the growth of seedlings, including uniformity, etc., which seriously affects the quality of seedlings. When applied independently, it also increases time and labor, and requires higher skilled technology. On the other hand, the quality of seedling growing substrates on the market is uneven and there are many types, and there are very few seedling growing substrates that are integrated with non-hormone seedling strengthening agents.

[0004] In response to the current problems in production regarding the application methods and types of rice seedling strengthening agents, the present invention provides a nutrient-rich rice seedling strengthening agent that can be fully integrated into a rice seedling raising medium and can promote root growth of rice seedlings with mineral nutrients and regulate the root / crown ratio, i.e., a nutrient-rich rice seedling strengthening agent that can be added during the rice seedling raising medium process. Summary of the invention

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a mineral nutrition type rice seedling strengthening agent based on the seedling raising matrix, which can be added in the production process of the rice seedling raising matrix, and can regulate the root-crown ratio of the rice seedlings with mineral nutrients to improve the quality of the rice seedlings. The invention is specifically realized by the following technical scheme:

[0006] A mineral nutrition type rice seedling strengthening agent based on a rice seedling raising matrix. Each cubic meter of rice seedling raising matrix comprises the following components by weight: 0.01-5.0kg of calcium salt in terms of calcium, 0.01-5.0kg of magnesium salt in terms of magnesium, 0.01kg-5.0kg of iron salt in terms of iron, 0.01-5.0kg of manganese salt in terms of manganese, and 0.01-5.0kg of zinc salt in terms of zinc.

[0007] Preferably, each cubic meter of rice seedling raising substrate includes the following components by weight: 0.1-2.5 kg of calcium salt in terms of calcium, 0.1-2.5 kg of magnesium salt in terms of magnesium, 0.1-2.5 kg of iron salt in terms of iron, 0.1-2.5 kg of manganese salt in terms of manganese, and 0.1-2.5 kg of zinc salt in terms of zinc.

[0008] More preferably, each cubic meter of rice seedling raising substrate comprises the following weight components: 0.25-1.5 kg of calcium salt in terms of calcium, 0.25-1.5 kg of magnesium salt in terms of magnesium, 0.25-1.5 kg of iron salt in terms of iron, 0.25-1.5 kg of manganese salt in terms of manganese, and 0.25-1.5 kg of zinc salt in terms of zinc. One cubic meter of rice seedling raising substrate is prepared.

[0009] Furthermore, each cubic meter of rice seedling raising substrate also includes 0.1-10.0 kg of organic acid and its salts and / or organic chelating agent.

[0010] Preferably, each cubic meter of rice seedling raising substrate further includes 0.25-5.0 kg of organic acid and its salts and / or organic chelating agent.

[0011] More preferably, each cubic meter of rice seedling raising substrate further includes 0.5-2.5 kg of organic acid and its salts and / or organic chelating agent.

[0012] Furthermore, the calcium salt is one or a combination of more than one of calcium sulfate, calcium carbonate, calcium oxide, calcium hydroxide, calcium chloride, calcium nitrate, calcium citrate, calcium malate and calcium oxalate.

[0013] Furthermore, the magnesium salt is one or a combination of more than one of magnesium sulfate, magnesium carbonate, magnesium oxide, magnesium hydroxide, magnesium chloride, magnesium nitrate, magnesium citrate, magnesium malate and magnesium oxalate.

[0014] Furthermore, the iron salt is one or a combination of ferrous sulfate, ferric sulfate, ferric chloride, ferrous chloride, ferric nitrate, ferric citrate, ferrous citrate, ferrous malate, ferrous malate, ferrous oxalate, ferrous oxalate, ferrous sulfide, ferrous ethylenediaminetetraacetate or ferrous ethylenediaminetetraacetate.

[0015] Furthermore, the manganese salt is one or a combination of more than one of manganese sulfate, manganese chloride, manganese carbonate, manganese nitrate, manganese citrate, manganese malate, manganese oxalate, manganese sulfide or ethylenediaminetetraacetic acid manganese.

[0016] Furthermore, the zinc salt is one or a combination of more than one of zinc sulfate, zinc chloride, zinc nitrate, zinc oxide, zinc carbonate, zinc citrate, zinc malate, zinc oxalate, zinc sulfide or zinc ethylenediaminetetraacetate.

[0017] Furthermore, the organic acid and its salts are one or a combination of more than one of citric acid, sodium citrate, potassium citrate, calcium citrate, magnesium citrate, (glacial) acetic acid, sodium acetate, potassium acetate, malic acid, sodium malate, potassium malate, calcium malate, magnesium malate, oxalic acid, sodium oxalate, potassium oxalate, calcium oxalate or magnesium oxalate, fulvic acid, potassium fulvic acid, humic acid, arginine, cysteine, and glutamic acid.

[0018] Furthermore, the organic chelating agent is one or a combination of more than one of ethylenediaminetetraacetic acid, sodium ethylenediaminetetraacetate, potassium ethylenediaminetetraacetate, calcium ethylenediaminetetraacetate or magnesium ethylenediaminetetraacetate.

[0019] The rice seedling strengthening agent does not contain any hormones and has high safety. By adding the agent during the production of the rice seedling culture medium, the root-crown ratio of the rice seedlings and the seedling height are regulated with mineral nutrients to promote strong seedlings. The agent has strong versatility. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the specification so as to better understand the technical solution.

[0021] Example 1: A mineral nutrition type rice seedling strengthening agent based on seedling raising matrix

[0022] Each cubic meter of seedling medium contains: 1.0kg of calcium sulfate, 1.0kg of magnesium sulfate, 1.0kg of ferrous sulfate, 1.0kg of manganese sulfate, 1.0kg of zinc sulfate, and 1.0kg of citric acid. All the raw materials need to be stirred and mixed evenly.

[0023] Example 2: A mineral nutrition type rice seedling strengthening agent based on seedling raising matrix

[0024] Each cubic meter of seedling medium contains: 2.5kg of calcium sulfate, 2.5kg of magnesium sulfate, 2.5kg of ferrous sulfate, 2.5kg of manganese sulfate, 2.5kg of zinc sulfate, and 2.5kg of citric acid. All the raw materials need to be stirred and mixed evenly.

[0025] Example 3: A mineral nutrition type rice seedling strengthening agent based on seedling raising matrix

[0026] Each cubic meter of seedling medium contains: 5.0kg of calcium sulfate, 5.0kg of magnesium sulfate, 5.0kg of ferrous sulfate, 5.0kg of manganese sulfate, 5.0kg of zinc sulfate, 2.5kg of citric acid, and 2.5kg of ethylenediaminetetraacetic acid. All the raw materials need to be stirred and mixed evenly.

[0027] Example 4: A mineral nutrition type rice seedling strengthening agent based on seedling raising matrix

[0028] Each cubic meter of seedling medium contains: 0.1kg calcium oxide, 0.1kg magnesium oxide, 1.0kg ferrous sulfate, 1.0kg manganese sulfate, 1.0kg zinc sulfate, and 1.0kg oxalic acid. All the raw materials need to be stirred and mixed evenly.

[0029] Example 5: A mineral nutrition type rice seedling strengthening agent based on seedling raising matrix

[0030] Each cubic meter of seedling medium contains: 0.25kg of calcium carbonate, 0.25kg of magnesium carbonate, 0.25kg of ferric chloride, 0.25kg of manganese chloride, 0.25kg of zinc chloride and 0.5kg of malic acid. All the raw materials need to be stirred and mixed evenly.

[0031] Example 6: A mineral nutrition type rice seedling strengthening agent based on seedling raising matrix

[0032] Each cubic meter of seedling medium contains: 0.5kg of calcium carbonate, 0.5kg of magnesium carbonate, 0.5kg of ferric chloride, 0.5kg of manganese chloride, 0.1kg of zinc chloride, 0.5kg of malic acid, and 0.5L (liter) of glacial acetic acid. All the raw materials are stirred and mixed evenly.

[0033] Example 7: A mineral nutrition type rice seedling strengthening agent based on seedling raising matrix

[0034] Each cubic meter of seedling medium contains: 2.5kg of calcium oxalate, 2.5kg of magnesium sulfate, 1.0kg of iron sulfate, 1.0kg of manganese sulfate, 0.25kg of zinc sulfate, and 2.5kg of ethylenediaminetetraacetic acid. All the raw materials need to be stirred and mixed evenly.

[0035] Test Example 1: Application of different mineral nutrition-based rice seedling strengthening agents in early rice seedling cultivation

[0036] Experimental location: The experiment will be conducted at the Fuyang Base of China National Rice Research Institute in 2023.

[0037] Experimental varieties: early rice, Zhongzao 35.

[0038] Experimental treatment: Ordinary rice seedling raising substrate (the substrate is an existing product, specifically formed by mixing 2 / 3 of decomposed organic fertilizer and 1 / 3 of yellow mud) was used as the control (CK), and the above-mentioned seedling strengthening agent was used as the treatment (Example 1, Example 2, Example 3, Example 4, Example 5, Example 6, Example 7), a total of 7 treatments. The seeds were soaked in clean water for 24 hours and then removed for use. 100 grams were sown per tray, and the specification of the seedling tray was 561 holes. The seedling raising substrate came from the product developed by this unit.

[0039] Specific operation process of the seedling-strengthening agent: the seedling-strengthening agent is evenly added to the seedling-raising substrate according to the requirements of the embodiment. The seedling-raising substrate with the seedling-strengthening agent is evenly spread in the seedling-raising tray according to the general mode of farmers, and the rice seeds are sown in the seedling-raising tray, and then covered with 0.5-1cm of the seedling-strengthening substrate with the seedling-strengthening agent. Water thoroughly, based on the water seeping from the bottom of the seedling tray, and check that the watering is even and thorough.

[0040] After that, wrap the seedling tray with black mesh to keep moisture and heat, unwrap it after 2 days (after the seedlings emerge), and place the seedling tray under light. Then water it once a day until the seedlings are established.

[0041] The quality of early rice seedlings treated with different mineral nutrition-type rice seedling strengthening agents is shown in Table 1.

[0042] Table 1

[0043]

[0044] Test conclusion: From Table 1, it can be seen that in terms of leaf age, all examples (1-7) are slower than the control, and the seedling height is also significantly lower than the control; the seedling height is relatively short, which has a significant effect on the control of seedling growth and vigor in the matrix. In terms of stem base width, total number of roots, number of white roots, root length, aboveground dry weight per 100 plants, and root dry weight per 100 plants, all examples (1-7) are better than the control in all aspects, which also shows that after being treated with the 7 kinds of seedling strengthening agents in this test example, the quality of the seedlings (seedling strength) has been greatly improved.

[0045] Experimental Example 2: Application of different mineral nutrition types of rice seedling strengthening agents in late rice seedling cultivation. Experimental location: The experiment was carried out at the Fuyang Base of the China National Rice Research Institute in 2023.

[0046] Experimental variety: late rice, Huazheyou No. 1.

[0047] Experimental treatment: Ordinary rice seedling substrate (the substrate is an existing product, specifically formed by mixing 2 / 3 of decomposed organic fertilizer and 1 / 3 of yellow mud) was used as the control (CK), and the above-mentioned seedling strengthening agent was used as the treatment (Example 1, Example 2, Example 3, Example 4, Example 5, Example 6, Example 7) and other 7 treatments. The seeds were soaked in clean water for 24 hours and then removed for use. 100 grams were sown per tray, and the specification of the seedling tray was 561 holes.

[0048] Specific operation process of the seedling-strengthening agent: the seedling-strengthening agent is evenly added to the seedling-raising substrate according to the requirements of the embodiment. The seedling-raising substrate with the seedling-strengthening agent is evenly spread in the seedling-raising tray according to the general mode of farmers, and the rice seeds are sown in the seedling-raising tray, and then covered with 0.5-1cm of the seedling-strengthening substrate with the seedling-strengthening agent. Water thoroughly, based on the water seeping from the bottom of the seedling tray, and check that the watering is even and thorough.

[0049] After that, wrap the seedling tray with black mesh to keep moisture and heat, unwrap it after 2 days (after the seedlings emerge), and place the seedling tray under light. Then water it once a day until the seedlings are established.

[0050] The quality of late rice seedlings treated with different mineral nutrition types of rice seedling strengthening agents is shown in Table 2.

[0051] Table 2

[0052]

[0053]

[0054] Test conclusion: From Table 2, it can be seen that the test results on late rice are exactly the same as those on early rice. In terms of leaf age, all examples (1-7) are slower than the control, and the seedling height is also significantly lower than the control, which has a significant effect on the control of seedling growth and vigor in substrate seedling cultivation. In terms of stem base width, total number of roots, number of white roots, root length, aboveground dry weight per 100 plants, and root dry weight per 100 plants, all examples (1-7) are better than the control in all aspects, which also shows that after being treated with the 7 kinds of seedling strengthening agents in this test example, the quality of the seedlings (seedling strength) has been greatly improved.

[0055] Whether it is early rice or late rice, the main purpose of using a seedling medium to grow seedlings is to facilitate mechanical transplanting, and the requirements for the seedlings are usually to control the seedling height and to make the seedlings strong. The seedling strengthening agent of the present invention does not contain any hormones, uses mineral nutrition to regulate the seedling height and promote strong seedlings, and has universality.

Claims

1. A mineral nutrition type rice seedling strengthening agent based on seedling raising matrix, characterized in that: Each cubic meter of rice seedling raising substrate includes the following components by weight: 0.01-5.0kg of calcium salt, 0.01-5.0kg of magnesium salt, 0.01kg-5.0kg of iron salt, 0.01kg-5.0kg of manganese salt, and 0.01-5.0kg of zinc salt.

2. A mineral nutrition type rice seedling strengthening agent based on seedling raising matrix as claimed in claim 1, characterized in that: Each cubic meter of rice seedling raising substrate also includes 0.1-10.0 kg of organic acid and its salts and / or organic chelating agent.

3. The mineral nutrition type rice seedling strengthening agent based on the seedling raising matrix according to claim 1, characterized in that: The calcium salt is one or a combination of more than one of calcium sulfate, calcium carbonate, calcium oxide, calcium hydroxide, calcium chloride, calcium nitrate, calcium citrate, calcium malate and calcium oxalate.

4. The mineral nutrition type rice seedling strengthening agent based on seedling raising matrix according to claim 1, characterized in that: The magnesium salt is one or a combination of more than one of magnesium sulfate, magnesium carbonate, magnesium oxide, magnesium hydroxide, magnesium chloride, magnesium nitrate, magnesium citrate, magnesium malate and magnesium oxalate.

5. The mineral nutrition type rice seedling strengthening agent based on seedling raising matrix according to claim 1, characterized in that: The iron salt is one of ferrous sulfate, ferric sulfate, ferric chloride, ferrous chloride, ferric nitrate, ferric citrate, ferrous citrate, ferric malate, ferrous malate, ferrous oxalate, ferrous oxalate, ferrous sulfide, ferrous ethylenediaminetetraacetate or ferrous ethylenediaminetetraacetate, or a combination of more than one of the following.

6. The mineral nutrition type rice seedling strengthening agent based on seedling raising matrix according to claim 1, characterized in that: The manganese salt is one or a combination of manganese sulfate, manganese chloride, manganese carbonate, manganese nitrate, manganese citrate, manganese malate, manganese oxalate, manganese sulfide or manganese ethylenediaminetetraacetate.

7. The mineral nutrition type rice seedling strengthening agent based on seedling raising matrix according to claim 1, characterized in that: The zinc salt is one or a combination of zinc sulfate, zinc chloride, zinc nitrate, zinc oxide, zinc carbonate, zinc citrate, zinc malate, zinc oxalate, zinc sulfide or zinc ethylenediaminetetraacetate.

8. The mineral nutrition type rice seedling strengthening agent based on seedling raising matrix according to claim 2, characterized in that: The organic acid and its salts are one or a combination of more than one of citric acid, sodium citrate, potassium citrate, calcium citrate, magnesium citrate, (glacial) acetic acid, sodium acetate, potassium acetate, malic acid, sodium malate, potassium malate, calcium malate, magnesium malate, oxalic acid, sodium oxalate, potassium oxalate, calcium oxalate or magnesium oxalate, fulvic acid, potassium fulvic acid, humic acid, arginine, cysteine, and glutamic acid.

9. The mineral nutrition type rice seedling strengthening agent based on seedling raising matrix according to claim 2, characterized in that: The organic chelating agent is one or a combination of ethylenediaminetetraacetic acid, sodium ethylenediaminetetraacetate, potassium ethylenediaminetetraacetate, calcium ethylenediaminetetraacetate or magnesium ethylenediaminetetraacetate.

10. Use of the mineral nutrition type rice seedling strengthening agent based on seedling raising matrix as claimed in any one of claims 1 to 9 as a rice seedling strengthening agent.

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