Simple and labor saving fertilization method for summer maize under wheat and maize rotation mode

A fertilization method and summer corn technology, applied in the direction of fertilization method, fertilization device, grain cultivation, etc., can solve the problems of increased cost input, high amount of controlled release fertilizer, labor shortage, etc., to improve nutrient utilization rate, increase economic benefits, The effect of increasing corn yield

Inactive Publication Date: 2018-09-28
INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI
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Problems solved by technology

Chinese patent document CN102210212B discloses a slow/controlled-release nitrogen fertilizer fertilization method in wheat and corn rotations. Make the crops lack fertilizer in the early stage, and at the same time, the amount of controlled release fertilizer is relatively high, so the input cost will be relatively high; For the purpose of high yield, although controlled-release urea is used, its dosage is too high, the cost input increases, and at the same time it still needs to be combined with base topdressing, which does not solve the contradiction of labor shortage during topdressing; Simplify the method of fertilization. The topdressing of the corn season needs to be in the big trumpet period. In addition, the summer is hot, the production conditions are not conducive to manual topdressing, and the f

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  • Simple and labor saving fertilization method for summer maize under wheat and maize rotation mode

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Experimental program
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Effect test

Example Embodiment

[0028] Example 1:

[0029] A light fertilization method for summer corn in a wheat-corn rotation mode, the specific steps are as follows:

[0030] After the wheat is harvested, the stalks are crushed and all returned to the field, and the corn is mechanically planted after the all is returned to the field. When the corn is sowed, the phosphorus, potassium and nitrogen fertilizers are mixed in proportion and then applied with the seeds at one time. No top dressing is required during the whole growth period.

[0031] Nitrogen fertilizer is a mixture of coated urea and ordinary urea, wherein the mass ratio of coated urea is 70%, and the mass ratio of ordinary urea is 30%. The potassium fertilizer used is granular potassium sulfate or potassium chloride, and the phosphate fertilizer is granular superphosphate.

[0032] The total input of nitrogen, phosphorus and potassium is controlled at 300kg / hm 2 , Where N nutrients are controlled at: 180kg / hm 2 ; P 2 O 5 Nutrient control: 45kg / hm 2 ; ...

Example

[0033] Application test example 1:

[0034] The application effect test of the light and simplified fertilization method for summer corn in Qihe, Dezhou in 2015.

[0035] 1.1 Test site: Guanzhuang Village, Bingbaisi Town, Qihe County, Dezhou City.

[0036] 1.2 Test soil: fluvo-aquic soil, soil pH value is 8.25, organic matter content is 16.8g / kg, total nitrogen, total phosphorus, total potassium content are 1.08g / kg, 0.86g / kg, 18.7g / kg, alkali Nitrogen solution 35.67mg / kg, available phosphorus 65.34mg / kg, quick-acting potassium 105.6mg / kg.

[0037] 1.3 Field management:

[0038] Corn was sown on June 21, 2015, and harvested on September 28. The field management of corn is the same as that of farmers' conventional fertilization treatment, machine seeder harvesting, and straw returning to the field.

[0039] 2.1 Set up farmer habitual fertilization, light simplified fertilization 1, light simplified fertilization 2 and a total of 3 large-scale experiments, each with an area of ​​1.25 acr...

Example Embodiment

[0059] Example 2:

[0060] A light fertilization method for summer corn in a wheat-corn rotation mode, the specific steps are as follows:

[0061] After the wheat is harvested, the stalks are crushed and all returned to the field, and the corn is mechanically planted after the all is returned to the field. When the corn is sowed, the phosphorus, potassium and nitrogen fertilizers are mixed in proportion and then applied with the seeds at one time. No top dressing is required throughout the process.

[0062] Nitrogen fertilizer is a mixture of coated urea and common urea, wherein the mass ratio of coated urea is 75%, and the mass ratio of common urea is 25%. The potassium fertilizer used is granular potassium sulfate or potassium chloride, and the phosphate fertilizer is granular superphosphate.

[0063] The total nutrient input of nitrogen, phosphorus and potassium is controlled at 300kg / hm 2 , Where N nutrients are controlled at: 180kg / hm 2 ; P 2 O 5 Nutrient control: 45kg / hm 2 ; K 2...

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Abstract

The invention relates to a simple and labor saving fertilization method for summer maize under a wheat and maize rotation mode. The method comprises the steps: harvesting wheat, then, smashing strawsto be completely returned to the field, next, sowing maize, and applying elementary substance fertilizers including a nitrogen fertilizer, a phosphorus fertilizer and a elementary fertilizer at one time during sowing maize, wherein topdressing is not needed in the whole growth period. The nitrogen fertilizer is a mixture of coated urea and ordinary urea, wherein the mass ratio of the coated urea is 60-80%, and the mass ratio of the ordinary urea is 20-40%. The fertilizers applied in the method are the elementary substance fertilizers by which the demands for nutrients in the whole growth period of maize can be met and topdressing is not needed in the whole process, so that the labor cost is reduced, the utilization ratio of the nitrogen fertilizer is greatly increased, the leaching loss ofthe nutrients along with rainwater is reduced, the nutrient supply during stem elongation and booting of maize is guaranteed, the yield of maize is greatly increased, stable production and yield increment is favorably realized, and meanwhile, the investment cost is greatly reduced.

Description

technical field [0001] The invention relates to a light and simple fertilization method for summer corn under a wheat-corn rotation mode, and belongs to the technical field of agricultural fertilization. Background technique [0002] Shandong Province is a large agricultural province. According to statistics, the agricultural population accounts for about 62.4% of the total population. The structural imbalance of the rural labor force, especially the extremely unreasonable distribution of the age structure, makes the current rural population engaged in agricultural production mainly women and the elderly. This phenomenon of unreasonable distribution makes it difficult for the existing labor force to undertake a huge workload when concentrated farming is busy, and it is difficult to achieve fine management of agricultural production management. The phenomenon of unscientific fertilization methods, difficulty in ensuring topdressing of crops, and impossible to discuss the rati...

Claims

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Application Information

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IPC IPC(8): A01G22/20A01C21/00
CPCA01G22/20A01C21/005
Inventor 张英鹏李洪杰刘兆辉薄录吉井永苹李彦孙明仲子文罗加法
Owner INST OF AGRI RESOURCES & ENVIRONMENT SHANDONG ACADEMY OF AGRI SCI
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