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An integrated fertilization method combining agricultural machinery and agronomy to improve the yield and quality of corn in cold regions

A fertilization method and corn technology, which are applied in fertilization methods, fertilization devices, agriculture, etc., can solve the problem of high ratio of nitrogen and potassium fertilizers

Active Publication Date: 2018-05-04
黑龙江天坤生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the prominent problem that the proportion of nitrogen and potassium fertilizers is too high in the early stage of farmers' traditional corn fertilization methods, and provides an integrated fertilization method combining agricultural machinery and agronomy to improve the yield and quality of corn in cold regions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] This embodiment provides an integrated fertilization method combining agricultural machinery and agronomy to improve the yield and quality of corn in cold regions, including the following:

[0020] 1. Distribution of nitrogen, phosphorus and potassium fertilizers at each stage of corn cultivation and growth:

[0021] Seed fertilizer nitrogen 40%, seed fertilizer phosphorus 100%, seed fertilizer potassium 80%, topdressing nitrogen 60% at the eight-leaf stage, or ten-leaf stage at the twelve-leaf stage, and topdressing potassium 20%.

[0022] The dosage form of seed fertilizer is: urea, zinc-containing ammonium sulfate (N19-Zn3), monoammonium phosphate (11-44-0), diammonium phosphate (16-44-0), potassium chloride (0-0-60) . P provided by monoammonium phosphate and diammonium phosphate 2 o 5 50% and 50%, while providing corresponding nitrogen, the remaining nitrogen comes from urea and zinc-containing ammonium sulfate, and the ratio of nitrogen provided by the two is 70...

Embodiment 2

[0028] The difference between this embodiment and embodiment 1 is:

[0029] For areas with an effective accumulated temperature ≥10°C of 2600-3000°C, apply total nitrogen 170kg ha -1 , total phosphorus 80kg ha -1 , Potassium 110kg ha -1 , of which seed fertilizer: nitrogen 68kg ha -1 , phosphorus 80kg ha -1 , Potassium 88kg ha -1 , Topdressing at the 12-leaf stage: nitrogen 108kg ha -1 , Potassium 22kg ha -1 .

[0030] For areas with an effective accumulated temperature ≥10°C of 2200-2600°C, apply total nitrogen 150kg ha -1 , total phosphorus 75kg ha -1 , Potassium 100kg ha -1 , of which seed fertilizer: nitrogen 60kg ha -1 , phosphorus 75kg ha -1 , Potassium 80kg ha -1 , topdressing at the ten-leaf stage: nitrogen 90kg ha -1 , Potassium 20kg ha -1 .

[0031] In areas where the effective accumulated temperature of ≥10°C is less than 2200°C, the application of total nitrogen is 130kg ha -1 , total phosphorus 70kg ha -1 , Potassium 80kg ha -1 ; Seed fertilizer:...

Embodiment 3

[0033] The difference between this embodiment and embodiment 1 is:

[0034] For areas with an effective accumulated temperature ≥10°C of 2600-3000°C, apply total nitrogen of 165kg ha -1 , total phosphorus 70kg ha -1 , Potassium 105kg ha -1 , of which seed fertilizer: nitrogen 66kg ha -1 , phosphorus 70kg ha -1 , Potassium 84kg ha -1 , Topdressing at the 12-leaf stage: nitrogen 99kg ha -1 , Potassium 21kg ha -1 .

[0035] For areas with an effective accumulated temperature ≥10°C of 2200-2600°C, apply total nitrogen 140kg ha -1 , total phosphorus 65kg ha -1 , Potassium 90kg ha -1 , of which seed fertilizer: nitrogen 56kg ha -1 , Phosphorus 65kg ha -1 , Potassium 72kg ha -1 , topdressing at the ten-leaf stage: nitrogen 84kg ha -1 , Potassium 18kg ha -1 .

[0036] In areas where the effective accumulated temperature of ≥10°C is less than 2200°C, 120kg ha of total nitrogen should be applied -1 , total phosphorus 60kg ha -1 , Potassium 75kg ha -1 ; Seed fertilizer:...

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Abstract

The invention discloses an integrated fertilization method combining agricultural machinery and agronomy for improving the yield and quality of corn in cold regions. The fertilization method is as follows: adopt the mechanical side deep fertilization technology, apply the seed fertilizer on the side of the seedling 6-8cm, and the depth is 10-15cm, In the double-row cultivation mode of large ridges, the topdressing is between the two rows of seedlings, with a depth of 15-20cm; in the cultivation mode of small ridges, the topdressing is 15-20cm from the side of the ridge to the side of the seedlings, and the depth is 15-20cm. Under the condition that the total amount of pure nitrogen, phosphorus and potassium is constant, the distribution of nitrogen, phosphorus and potassium in each stage of corn cultivation and growth is as follows: pure nitrogen as seed fertilizer accounts for 30%-40% of total nitrogen, and pure phosphorus as seed fertilizer accounts for total phosphorus P2O5100 %, pure potassium as seed fertilizer accounts for 70%-80% of total potassium, pure nitrogen as topdressing fertilizer accounts for 60%-70% of total nitrogen, and pure potassium as topdressing fertilizer accounts for 20%-30% of total potassium. This fertilization method makes the fertilization period consistent with the law of corn fertilizer demand, and at the same time adjusts the fertilizer dosage form of nitrogen and phosphorus fertilizers to ensure that the corn population is not too prosperous during the vegetative growth period, improve the corn population quality, and ensure that the nutrient requirements of the corn are met in the late growth period. demand to increase the root activity of maize.

Description

technical field [0001] The invention relates to a corn fertilization method. Background technique [0002] Corn is a major industrial raw material, feed and food crop. In 2014, the planting area of ​​corn in Heilongjiang Province has exceeded 100 million mu, and there is a trend of further development. Corn production is closely related to my country's food security issues. Continuous improvement of corn fertilization technology is the main way to protect the fertility of black soil and increase and stabilize rice production. It is a key issue for sustainable agricultural development and an important guarantee for food security. [0003] The problems existing in the traditional corn fertilization technology mainly include: the total amount of fertilization is high, the distribution ratio of nitrogen, phosphorus and potassium is unreasonable, and the proportion of nitrogen is too high. Generally, the nitrogen input of seed fertilizer in the early stage of corn production exce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G1/00A01C21/00
Inventor 姜佰文张娟王春宏宫香余姜举娟杨志远张迪李威周宝库徐凤花
Owner 黑龙江天坤生物科技有限公司
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