PHOSPHATE FERTILIZER UTILIZATION RATE-IMPROVING PLANTING AND FERTILIZER APPLICATION METHOD OF POTATOES IN CHESTNUT SOIL FARMLAND

Abstract

The present invention discloses a phosphate fertilizer utilization rate—improving planting and fertilizer application method of potatoes in a chestnut soil farmland; according‘ to the planting‘ method. disclosed. by the present invention, integrated water and phosphorus regulation and control are carried out by means of drip irrigation in combination with time and space regulation and control of phosphate fertilizer, and this achieves water and fertilizer resource saving, greatly increases the phosphate fertilizer utilization rate in potatoes and tuber yield, and facilitates the green production of potatoes.

Description

l PHOSPHATE FERTILIZER UTILIZATION RATE-IMPROVING PLANTING AND FERTILIZER APPLICATION METHOD OF POTATOES IN CHESTNUT SOIL FARMLAND TECHNICAL FIELD [Ol] The present invention belongs to the technical field of crop fertilization, and particularly relates to a phosphate fertilizer utilization rateimproving' planting and fertilizer application method of potatoes in a chestnut soil farmland. BACKGROUND ART

[02] Chestnut soil is a type of soil primarily distributed in the hilly agricultural area of the Yinshan Mountains. However, the phosphate fertilizer 'utilization. rate in a chestnut soil farmland. is low, and the inseason utilization rate is only 815%.

[03] The low utilization efficiency of phosphate fertilizer in. potatoes primarily contains the following points: the adsorption and fixation of watersoluble phosphates by chestnut soil reduce the migration distance of fertilizers and limit the effectiveness of fertilizers. Currently, drip irrigation. is widely applied. because of its watersaving properties, but the drip application of phosphate fertilizer is prone to discontinuous distribution because drip irrigation in potatoes is set in the field, and this problem limits the area and probability of contact between potato roots and phosphate fertilizer. Growers often. make up for this by applying additional phosphate fertilizer, which in turn raises the output costs. Second, chestnut soil is typically alkaline, whereas the most suitable soil for potato growth is a slightly acidic environment; in actual production, farmers mostly choose fertilizers based on the criteria of favorable price and high nutrient content and ignore the water solubility of fertilizers and the matching with soil properties, and this constrains the formation of high yield potatoes.

[04] Therefore, how to provide a phosphate fertilizer utilization rateimproving planting and fertilizer application method of potatoes and improve the phosphate fertilizer utilization rate and yield of potatoes has become an urgent issue to be addressed in the field. SUMMARY

[05] The objective of the present invention is to solve the problem. of low utilization efficiency of phosphate fertilizer in drip irrigation of potatoes ill a chestnut soil farmland and provides a phosphate fertilizer utilization rateimproving planting and fertilizer application method of potatoes in a chestnut soil farmland, and the method includes the following steps:

[06] land preparation: soil is tilled by a rotary tiller and then harrowed before potato sowing; [O7] sowing: ridging, sowing and base fertilizer application are conducted mechanically, and potato seeds are sowed into the ridges by planting a row of seeds in each ridge, so that the seed potatoes are distributed in the ridges; the base fertilizer is applied 1215 cm below a seed potato side in a furrow application manner, and the amount of the applied base fertilizer accounts for 15% of the total weight of fertilizers; the specific amount of the applied base fertilizer is 21 kg / hm2; when the seeds are sowed, a ridge spacing is 90 cm, a ridge height is 15 cm, an upperridge surface width is 20 cm, a lowerridge surface width is 30 cm, a planting depth of the seed potatoes is 15 cm, and a plant spacing is 20 cm;

[08] pipe laying: at the end of sowing, pipe furrows with a depth of 3 cm are excavated over the seed potatoes with a furrow opener, and pipes are laid and covered with soil;

[09] tillage: drip tapes are 5 cm from the ground surface after cultivation and banking;

[10] drip irrigation holes are formed on the drip tapes, and the spacing between the drip irrigation holes is 1020 cm;

[11] field management: after the end of tillage, laying of main pipes, pipe connection and water meter installation are started at first, and water and phosphate fertilizer management is conducted on the potatoes;

[12] the water and phosphate fertilizer management is to: apply additional fertilizer in a seedling stage, a tuber formation stage and a tuber expansion stage of the potatoes, and dissolve additional fertilizer in water to conduct integrated application of water and phosphate fertilizer during top dressing;

[13] the fertilizer is monoammonium phosphate or ammonium polyphosphate;

[14] the weight of the additional fertilizer applied in the seedling stage accounts for 30% of the total weight of the fertilizer; specifically, additional fertilizer with an amount of 30 kg / hm2 is applied at first in the seedling stage, followed by an additional amount of 12 kg / hm2;

[15] the application amount of the additional fertilizer in the tuber formation stage accounts for 40% of the total weight of the fertilizer; specifically, additional fertilizer with an amount of 30 kg / hm2 is applied at first in the tuber formation stage, followed by an additional amount of 26 kg / hm2;

[16] the application amount of the additional fertilizer in the tuber expansion stage accounts for 15% of the total weight of the fertilizer; specifically, additional fertilizer with an amount of 21 kg / hm2 is applied in the tuber expansion stage; and

[17] the top dressing is conducted at an interval of 57 days in the same stage.

[18] Preferably, all the fertilizers are measured by P20& with a total application amount of 140 kg / hm2.

[19] Preferably, the seedling stage is 020 days after potato seedlings emerge; the tuber formation stage is 20 40 days after the seedlings emerge, and the tuber expansion stage is 4070 days after the seedlings emerge.

[20] Preferably, the specific method of integrated application of water and phosphate fertilizer in the water and phosphate fertilizer management is to dissolve the fertilizer in water before drip irrigation.

[21] The beneficial effects of the present invention are as follows:

[22] The potato planting method of the present invention takes into account the properties of phosphate fertilizer in chestnut soil, spacetime regulation and control facilitate phosphate fertilizer absorption efficiency of planted potatoes, and the fixation of phosphate fertilizer in soil is reduced; wherein the application of base fertilizer below a seed potato side in a furrow application manner and the limitation on the shallow burial of the drip tape and the spacing between the drip irrigation holes facilitate the diffusion of phosphate fertilizer in soil, and this further increases the probability and area of contact between the potato root system and the phosphate fertilizer, which in turn improves the phosphate fertilizer utilization. efficiency and yield of potatoes. DETAILED DESCRIPTION OF THE EMBODIMENTS

[23] The following examples are used only to illustrate and explain the present invention but not intended to limit the protection scope of the present invention.

[24] Example 1

[25] A. phosphate fertilizer utilization rateimproving planting method of potatoes, wherein the fertilizer used is divided into base fertilizer and additional fertilizer, the fertilizer is monoammonium phosphate or ammonium polyphosphate, and the method includes the following steps:

[26] land preparation: soil was tilled by a rotary tiller with a rotary tilling depth of 20 cm and then harrowed before potato sowing;

[27] sowing: ridging, sowing and base fertilizer application were conducted mechanically, and a row of seeds were planted in each ridge, so that the seed potatoes were distributed in the ridges; wherein the base fertilizer was applied 15 cm below a seed potato side in a furrow application. manner, and potato seeds were sowed into the ridges; a ridge spacing was 90 cm, a ridge height was 15 cm, an upperridge surface width was 20 cm, a lowerridge surface width was 30 cm, a planting depth of the seed potatoes was 15 cm, a plant spacing was 20 cm, the base fertilizer was monoammonium. phosphate, and an application amount was 21 kg / hm? measured by P205;

[28] pipe laying: at the end of sowing, pipe furrows with a depth of 3 cm were excavated over the seed potatoes with a furrow opener, and. pipes were laid and covered. with soil;

[29] tillage: after cultivation. and. banking, drip tapes were 5 cm from the ground surface, and the spacing between drip irrigation holes was 15 cm;

[30] field management: after the end of tillage, laying of main pipes, pipe connection and water meter installation were started at first, and water and phosphate fertilizer management was conducted on the potatoes;

[31] the water and phosphate fertilizer management was to: apply additional fertilizer in a seedling stage, a tuber formation stage and a tuber expansion stage of the potatoes, the additional fertilizer used was monoammonium phosphate, all the application. amounts were measured. by Pk, and the additional fertilizer was dissolved in drip irrigation water to conduct integrated application of water and phosphate fertilizer during top dressing; and

[32] the additional fertilizer was applied twice in the seedling stage with an amount of 30 kg / hm2 for the first time and 12 kg / hm2 for the second time at an interval of 57 days between fertilizer applications.

[33] The additional fertilizer was applied twice in the tuber formation stage with an amount of 30 kg / hm2 for the first time and 26 kg / hm? for the second time at an interval of 57 days between fertilizer applications.

[34] The additional fertilizer* was applied. once in the tuber expansion stage with. an application. amount of 21 kg / hm2.

[35] Chestnut soil dripirrigated farmland. was selected and divided into seven experimental plots used for Examples 27 and blank control as follows.

[36] Blank control: no additional fertilizer was applied;

[37] Example 2: The planting' method. is the same as in Example 1, with the difference that calcium. magnesium phosphate fertilizer was used as additional fertilizer;

[38] Example 3: The planting' method. is the same as in Example 1, with the difference that triple superphosphate was used as additional fertilizer;

[39] Example 4: The planting' method. is the same as in Example 1, with the difference that single superphosphate was used as additional fertilizer;

[40] Example 5: The planting' method. is the same as in Example 1;

[41] Example 6: The planting' method. is the same as in Example 1, with the difference that diammonium phosphate was used as additional fertilizer;

[42] Example 7: The planting' method. is the same as in Example 1, with the difference that ammonium polyphosphate was used as additional fertilizer;

[43] The phosphate fertilizer applied in Examples 27 was calculated according to the amount of Pk, the amount of base fertilizer was 21 kg / hm2, all the amounts of additional fertilizer were 119 kg / hm2, and the indicators were measured. The results are shown in Table 1. Table 1 Screening test results of phosphate fertilizer in chestnut soil Treatment Phosphate Phosphorus Yield Commercial Phosphate fertilizer uptake (kg / hm?) rate (%) fertilizer fixation accumulation utilization rate at in plants rate (%) harvest (kg / hm% (% Blank 24.9e 42278.1e 72.4e control

[44] It can be seen from Table 1 that monoammonium phosphate or ammonium polyphosphate used as the additional fertilizer is good for improving the utilization rate of phosphate fertilizer in potatoes with a high potato yield, a high commercial rate and a high fertilizer utilization rate, and there is a significant difference in effect between. monoammoniunl phosphate or ammoniunl polyphosphate and other phosphate fertilizers.

[45] Chestnut soil dripirrigated farmland was selected, potatoes were planted according to the fertilization method described 111 Example 5, the amount (af phosphorus absorbed by the potatoes was measured in different growth and development stages, and a law was summarized.

[46] As can be known from the growth and development of highyielding potato groups: a growth amount of 020 days of seedling is a seedling stage; 2040 days of seedling is a tuber formation stage; 4070 days of seedling is a tuber expansion stage; and 70100 days of seedling is a starch accumulation stage. The proportion of phosphorus uptake in the four intervals was calculated. based on the above mentioned stages.

[47] This proportion was measured by applying fertilizer according to the fertilizer application method described in Example 5, and the total amount of phosphate fertilizer measured by the amount of £505 was 140 kg / hm2. Complete potato plants were taken at the end of different stages, divided. into roots, stems, leaves and. tubers and. dried separately to measure phosphorus contents, then multiplied the phosphorus contents by the dry weight of each organ, and. summed. up as the phosphorus uptake of the complete plant.

[48] The phosphorus uptake (%) in each growth stage was calculated to obtain results in the following proportions: 15% in the seedling stage, 30% in the tuber formation stage, 40% in the tuber expansion stage, and 15% in the starch accumulation stage;

[49] The amount of phosphorus applied to the potatoes was determined to be 21 kg / hm% 42 kg / hm% 56 kg / hm2 and 21 kg / hm? for each growth and development interval, respectively.

[50] To facilitate the absorption of phosphorus from the fertilizer by potatoes, the applications were made one fertility period forward at the time of planting respectively; 30 kg / hn? was used as the unit of each dosage, with a cycle of 57 days until the application was completed.

[51] Chestnut soil dripirrigated farmland. was selected and divided into four experimental plots used for Examples 1012 and Comparative example 4 as follows.

[52] Example 8: The fertilizer application method is the same as in Example 1;

[53] Example 9: The fertilizer application method is the same as in Example 1, with the difference that the other portion of base fertilizer was applied 5 cm at the flat side of the seed potatoes in a furrow application manner;

[54] Example 10: The fertilizer application method is the same as in Example 1, with the difference that the other portion of base fertilizer was applied 10 cm at the upper side of the seed potatoes in a furrow application manner;

[55] Comparative example 1: The fertilizer application method is the same as in Example 1, with the difference that the other portion of base fertilizer was spread in the ridges.

[56] The effect of the fertilizer application methods in Examples 810 and Comparative example 1 was verified, and the results are shown in Table 2. Table 2 Effects of different base fertilizer application methods on potatoes Treatment Root dry weight Dry matter Phosphorus per plant accumulation uptake (g / plant) (kg / hm2) accumulation (kg / hmz) Comparative 1.41d 324.7d 2.3d example 1

[57] It can be seen from Table 2 that the root dry weight, dry matter accumulation and plant phosphorus uptake accumulation of the potatoes in the seedling stage increased when the fertilizer was applied 15 cm below the seed potato side in a furrow application manner, and therefore, the base phosphate fertilizer was applied 15 cm below the seed potato side in a furrow application manner.

[58] Chestnut soil dripirrigated farmland. was selected and divided into three experimental plots used for Examples 1112 and blank control as follows.

[59] Blank control: no phosphate fertilizer was applied;

[60] Example 11: The fertilizer application method is the same as in Example 1, with the difference that the additional fertilizer was applied by drip irrigation over ridge surfaces;

[61] Example 12: The fertilizer application method is the same as in Example 1.

[62] The effect of the fertilizer application methods in Examples 1112 and. blank control was verified, and. the results are shown in Table 3. Table 3 Effect of the drip irrigation method on phosphorus uptake Treatment Yield Commercial Phosphate (kg / hmH rate (%) fertilizer utilization rate (%) -

[63] It can be seen from. Table 3 that the phosphate fertilizer and water were applied integrally as additional fertilizers and buried at za depth of ES cm, the uniform coverage of soil fastacting phosphorus in the ridges after top dressing was increased by 2.67 times, both the potato yield and commercial rate were all increased, and this setting significantly solves the problem. of non continuous distribution of phosphate fertilizer in soil.

[64] Chestnut soil dripirrigated farmland. was selected and divided into three experimental plots used for Examples 1314 and blank control as follows.

[65] Blank control: no phosphate fertilizer was applied;

[66] Example 13: The fertilizer application method is the same as in Example 1, with the difference that a dripper spacing was 30 cm;

[67] Example 14: The fertilizer application method is the same as in Example 1.

[68] The effect of the fertilizer application methods in Examples 1314 and. blank control was verified, and. the results are shown in Table 4. Table 4 Effect of dripper spacing on phosphorus uptake Treatment Yield Commercial Phosphate (kg / hmH rate (%) fertilizer utilization rate (%) -

[69] It can be seen from Table 4 that the integral application of phosphate fertilizer and water as additional fertilizers with a dripper spacing of 15 cm can improve the phosphate fertilizer utilization rate in potatoes, both the potato yield and commercial rate were all increased, and this setting significantly solves the problem. of noncontinuous distribution. of phosphate fertilizer in soil.

[70] Chestnut soil dripirrigated farmland. was selected and divided into four experimental plots used for Examples 1516, Comparative example 2 and blank control as follows.

[71] Blank control: no phosphate fertilizer was applied;

[72] Comparative example 2: The phosphate fertilizer application method of potato planting farmers in the hilly area of the Yinshan Mountains was adopted, with a fertilizer application amount of 240 kg / hm? in the form of base fertilizer applied in one step.

[73] Example 15: The fertilizer application method is the same as in Example 1, with the difference that the fertilizer application. was regulated. and controlled temporally in stages; the specific fertilizer application method was that 27kg / hm2 of base fertilizer was applied, 30 kg / hn? of additional fertilizer was applied in the seedling stage at first, and then 24 kg / hm2 of additional fertilizer was applied; 30 kg / hm? of additional fertilizer was applied in the tuber formation stage at first, then 30 kg / hm2 of additional fertilizer was applied, and finally 12 kg / hm2 of additional fertilizer was applied; 27 kg / hm2 of additional fertilizer was applied in the tuber expansion stage, and the potatoes were planted in accordance with the conventional planting method used by potato planting farmers.

[74] Example 16: The fertilizer application method is the same as in Example 1.

[75] The planting effects of different fertilizer application methods in 2019 were summarized, as specifically shown in Table 5. Table 5: Effect of phosphate fertilizer amount reduction under timespace regulation and control for drip irrigation of potatoes Treatment Yield (kg / hmz) Commercial Phosphate rate (%) fertilizer utilization rate (%) ___ Comparative 52971.5a 86.6a 15.0c example 2

[76] It can be seen from Table 5 that compared with the level of phosphorus application by farmers, phosphorus reduction of about 41.7% was achieved using the time+space regulation. and. control method. without any difference in yield levels, but the phosphate fertilizer utilization efficiency was improved. This is because phosphorus in the integrated water and phosphate fertilizer application method is diffused downwards from. the soil surface in conventional technology; the drip tape is deeply buried in the present invention, the dripper spacing is shortened, so that phosphorus can be diffused up and down or left and right when the integrated water and phosphate fertilizer application is conducted and the phosphorus diffusion area over the ridges is increased on the whole, and this solves the problem that phosphorus does not move easily in soil.

Claims

1. Phosphate fertilizer utilization rate improving plant and fertilizer application method for potatoes in a greenhouse Tanozem arable land, comprising the following steps: land preparation: the ground is worked by a soil crumbler and subsequently harrowed prior to the sowing potatoes; sowing: ridges, sowing and application of base fertilizer dust is removed mechanically, and potato seeds are sown in the ridges by a row of seeds in each ridge plant, so that the seed potatoes are planted in the ridges divided; whereby the base fertilizer is 1215 cm under a leg potato side is applied in a furrow application method them, and the amount of the applied base fertilizer 15% amounts to the total weight of the fertilizers; where with the specific amount of applied base fertilizer substance is 21 kg / hm?; where, when sowing the seeds, a back spacing is 90 cm, a back height is 15 cm, a width of the upper back surface amounts to 20 cm, a width of the lower back surface amounts to 30 cm, a planting depth of the seed potatoes is 15 cm, and a planting distance amounts to 20 cm; laying pipes: at the end of sowing tube furrows with a depth of 3 cm above the leg are installed potatoes are dug with a furrow opener and pipes are laid and covered with soil; processing: drip hoses are located 5 cm from the soil surface after cultivation and storage; where drip irrigation holes are formed. on the drip hoses and the distance between the drip irrigation holes amounts to 1020 cm; field management: after the end of the operation first laid the main pipes, the pipe connection and the in installation of the water meter started and the water and phosphate fertilizer management carried out on the potatoes; where the water and phosphate fertilizer management serves to: to apply extra fertilizer at a seedling stage, a tuber formation stage and a tuber expansion stage of the potatoes, and extra fertilizer to dissolve in water to an integrated application of water and phosphate fertilizer to be performed during top dressage; where the fertilizer monoammonium phosphate or ammonium polyphosphate is; where the weight of the supplementary fertilizer that is applied at the seedling stage, 30% of the total weight of the fertilizer amounts to; where specifically extra fertilizer with a rate of 30 kg / hm² first in the seedling stage. is applied, followed by an extra quantity of 12 kg / hm²; where the application quantity of the additional fertilizer at the tuber formation stage 40% of the total weight of the n@ststof amounts to; where specifically extra fertilizer with a rate of 30 kg / hm² first in the tuber formation stage is applied, followed by an filling quantity of 26 kg / hm²; where the application quantity of the additional fertilizer at the tuber expansion stage 15% of the total weight of the fertilizer amounts to; where specifically supplementary fertilizer with a quantity of 21 kg / hm² in the tuber expansion stage is applied; and where the top dressage is performed with an in term of 57 days in the same stage.

2. Method according to claim 1, whereby the added The amount of fertilizer is measured by Pk, with a total quantity of 140 kg / hm².

3. Method according to conclusion 1, whereby the sowing the ling stage amounts to 20 days after emergence of the potato peel seedlings; where the tuber formation stage is 2040 days amounts to after emergence of the seedlings, and the tuber expansion stage amounts to 40-70 days after emergence of the seedling n.

4. Method according to claim 1, whereby the speci each method of integrated application of water and phage fertilizer in water and phosphate fertilizer management to dissolve the fertilizer in water prior to uppel irrigation. ooo PORT CONCERNING RESEARCH INTO THE STATE OF THE ART Patent application 2038954 1 1 classification of the subject : Investigated areas of technology : C21 / 00; A01G22 / 25 A01C; A01G PC files: Scope of the investigation: -PATENTS; AbS-NPL Fully um of the investigated conclusions: Uninvestigated conclusions: October 2024 - Relevant literature 2 Citation of literature with indication, where necessary, of relevance to gory conclusion(s) of text passages or figures of particular importance X CN 111869391 A (UNIV INNER MONGOLIA AGRI) 1-4 November 3, 2020 * figure 4; tables; machine translation page 2, lines 20-22, 32 and 34; page 3, lines 15-27; page 4, lines 2, 4, 7 and 9; page 5, lines 5 and 7; page 7, lines 21 and 22; page 8, lines 20, 22, 30 and 31 * – – – A NETAFIM “Sub Surface Drip Irrigation (SDI) Systems 1 "Handbook", 2022, pages 1-118 * page 13 * – – – A van LOON, CD et al. “Cultivation of ware potatoes”, 1 Cultivation manual no. 57, November 1993, pages 1-142 * page 51; figure 14; chapters: “Fertilization” and “Irrigation” * – – – – – Date on which the investigation was completed: The competent official: July 2025 Dr. WA Kanneworff Netherlands Patent Office part of the Netherlands Enterprise Agency See explanation on the next page. direction: welding areas of engineering: defined according to International Patent Classification (IPC). Generosity of the cited literature: p state of T being of particular importance in itself: literature on theory or not published in time the technical principle underlying the invention in conjunction with other cited literature E: patent literature published on or after the filing a state of the art of particular importance date of the present application and of which the submission date or the priority date is before the something of importance belonging to category X or Y submission date of the present application being state of the art D: mentioned in the application referring to an unrecorded state of affairs e technique L: literature mentioned for other reasons literature published between priority and &: member of the same patent family; corresponding literature submission date APPENDIX Accompanying the Report on the State of the Art Survey Patent application 2038954 The appendix contains a list of patent applications or patents published elsewhere (so-called and of the same patent family), which correspond to patent specifications mentioned in the report. The statement has been compiled based on data from the computer file of the European insurance agency as of June 11, 2025. The accuracy and completeness of this statement are neither guaranteed by the European Patent Office, nor guaranteed by the Netherlands Patent Office; the data are Provided for informational purposes. In the report mentioned Date of Corresponding Date of patent specification publication of patent specifications publication CN 111869391 A 03-11-2020 (none) WRITTEN OPINION Patent application 2038954 Opening date: Priority date: October 2024 - 1 Applicant: classification of the subject : 1C21 / 00; A01G22 / 25 Inner Mongolia Agricultural University Northwest A&F University The written opinion contains an explanation of the following sections: Part I Basis of the written opinion Part II Priority Determination of novelty, inventiveness, and industrial applicability not Part III possible Part IV The application relates to more than one invention Reasoned statement regarding novelty, inventiveness and Part V industrial applicability Part VI Other cited documents Other defects Part VII Part VIII Other remarks The competent official: Dr. WA Kanneworff Netherlands Patent Office part of the Netherlands Enterprise Agency Defined according to International Patent Classification (IPC). Written Opinion Patent application 2038954 Part I Basis of the written opinion The written opinion was prepared on the basis of the conclusions submitted on 30 October 2024. Part V Reasoned statement regarding novelty and inventiveness and industrial applicability Declaration Yourself Yes: conclusion(s) 1-4 No: conclusion(s) - ventivity Yes: conclusion(s) - No: conclusion(s) 1-4 Industrial applicability Yes: conclusion(s) 1-4 No: conclusion(s) - Literature and commentary the report concerning the state of the art study become the following publications names: 1: CN 111869391 A (UNIV INNER MONGOLIA AGRI) November 3, 2020 2: NETAFIM “Sub Surface Drip Irrigation (SDI) Systems Handbook”, 2022, pages 1-118 3: van LOON, CD et al. “Cultivation of ware potatoes”, cultivation manual no. 57, November 1993, pages 1-142 The discussion of document D1 below uses machine translation. References to the text of this document are references to the text of the machine translation. to this document. reveals a phosphate fertilizer utilization rate improving plant and fertilizer application method (page 2, lines 20-22) for potatoes in chestnut-growing land (page 2, line 32), taking the following steps: land preparation: the soil is worked by a soil crumbler and then harrowed prior to sowing potatoes (implicitly in the preparation of potato cultivation); sowing: ridges, sowing (page 4, line 2) and application of base fertilizer (page 4, line 4) were performed mechanically (page 5, line 7), and potato seeds (here interpreted as potato seeds are sown in the ridges by planting a row of seeds in each ridge, so that the potatoes are distributed in the ridges; whereby the base fertilizer 10 cm (page 5, line 5) under a seed potato side is applied in a furrow application method, and the quantity of the appropriate base fertilizer amounts to 15% of the total weight of the fertilizers (15% based on 0 – 85% (cumulative of other fertilization steps)); whereby at the sowing of the seeds a spine spacing amounts to 90 cm (page 8, line 30; figure 4), a spine height amounts to 15 cm (page 8, Written Opinion Patent application 2038954 gel 31), a width of the upper back surface amounts to 20 cm, a width of the lower ridge surface amounts to 30 cm (Figure 4 shows such a ridge), a planting depth of the potatoes is 15 cm (page 8, line 31), and a planting distance is 20 cm; laying pipes: at the end of sowing, pipe furrows are made with a depth of cm above (page 4, line 9) the seed potatoes are dug with a furrow opener and are zen laid and covered with soil; Preparation: drip hoses are located 10 cm (page 4, line 9) from the ground surface cultivation and storage; where drip irrigation holes are formed on the drip hoses and the distance and the drip irrigation holes measure 20 cm (page 4, line 7); field management: after the completion of the work, the main pipes are laid first, the connection and the installation of the water meter started and the water and phosphate fertilizer is applied to the potatoes (implicitly when laying a drip irrigation system); where the water and phosphate fertilizer management serves to: apply additional fertilizer in a seeding stage, a tuber formation stage and a tuber expansion stage of the potatoes, and extra to dissolve nitrogen in water to carry out an integrated application of water and phosphate fertilizer honoring during top dressage (page 3, lines 15-27); where the fertilizer is monoammonium phosphate or ammonium polyphosphate (page 2, line 34); where the weight of the supplementary fertilizer applied at the seedling stage, amounts to % of the total weight of the fertilizer (page 7, line 21); where specifically extra 2 nitrogen with a quantity of 30 kg / hm (page 8, line 20) is first applied in the seedling stage appropriate; whereby the application quantity of the supplementary fertilizer in the nodule formation stage amounts to 42% of the total weight of the fertilizer (page 7, line 22); whereby the application rate of the supplementary fertilizer at the tuber expansion stage is 12% of total weight of the fertilizer amounts to (page 7, line 22; it is noted that cumulative the quantities amount to 85%); and where topdressing is performed at intervals of 5-7 days in the same stage page 8, line 22). phosphate fertilizer utilization rate improving plant and fertilizer application method according to Conclusion 1 differs from the method known from D1 regarding the exact depths of the drip hoses (on m depth instead of at 10 cm), the total amounts of fertilizer applied (smaller quantities) and the depth at which the base fertilizer is applied under the potatoes: 12-15 instead of 10 cm. Consequently, conclusion 1 is new compared to D1. measures aim at optimal potato cultivation with a more limited quantity to achieve water and phosphate fertilizer. The professional who wants to improve potato cultivation will among other things, make changes based on his general professional knowledge with regard to the pts of the buried drip hoses, depth of fertilization under the seed potatoes and exact quantities of fertilizers. It is noted that such variables are in any case dependent of the cultivar to be grown. A depth of 3 cm for the buried drip hoses is a known depth. or potatoes (see also D2, for example), and the small differences with regard to the depth of fertilizing and exact quantities of fertilizers are common optimizations, for example depending Written Opinion Patent application 2038954 of the cultivar (see for example D3). It is noted that the cultivation results in the tables of the application shows little difference from corresponding results in the tables of D1. The skilled person will therefore they consider and apply cultivation measures based on his knowledge to make the cultivation as efficient as possible to equalize. Therefore, conclusion 1 is not inventive with respect to D1 and the general professional knowledge of the craftsman. measures of dependent follow-up conclusions 2-4 regarding the applied quantity nitrogen, the seedling, tuber formation, and tuber expansion stages as well as the integrated application and water and phosphate fertilizer in the management prior to drip irrigation are for the professional wanting to optimize potato cultivation in terms of water and fertilizer use is obvious. The measures cannot provide the conclusions with any inventiveness. Consequently, conclusions 2-4 are also not inventive with respect to D1 and the knowledge of the skilled professional. D2 (page 13, halfway down) are common drip irrigation depths for potatoes (2-5 cm) known. D3 are common shapes and dimensions of cultivation ridges for potatoes (page 51, figure 14) co-optimizations regarding fertilization and irrigation (chapters: “Fertilization” and rain") known.