High-yielding peanut efficient nitrogen application method

A peanut and high-efficiency technology, applied in fertilization methods, fertilization devices, applications, etc., can solve the problems of increasing dosage, excessive growth of peanut seedlings, loss of nitrogen fertilizer, etc. quick effect

Inactive Publication Date: 2012-10-10
SHANDONG PEANUT RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under high-yield conditions, especially in plots with a peanut yield of more than 500kg per mu, this fertilization method is not conducive to the robust growth of plants and the use of nitrogen fertilizer, which is not conducive to the formation of yield.
The reason is: after all the nitrogen fertilizers are applied to the base, the nitrogen concentration in the soil before and after sowing will be too high, causing the following adverse reactions: one is to greatly limit the infection, reproduction and nitrogen fixation capabilities of root nodules at the seedling stage and flower needle stage, and affect the root nodule's ability to The amount of nitrogen supplied by peanuts
The second is that it is easy to cause peanuts to grow too fast at the seedling stage, and the mid-term excessive growth and lodging are serious. It is necessary to increase the dose for chemical control, and excessive chemical control will easily cause premature decay of the plant.
Third, the loss of nitrogen fertilizer is serious, and the utilization rate of nitrogen fertilizer is low
Fourth, the phenomenon of fat loss is prone to occur in the later period of childbirth

Method used

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  • High-yielding peanut efficient nitrogen application method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] In the field test at the output level of 500kg per mu, the soil type of the test field is loamy soil, the available nitrogen is 128.7mg / kg, and the tested variety is Huayu 22.

[0009] Nitrogen application method of the present invention: urea (nitrogen-containing 46%) is used for nitrogen fertilizer, and the total amount of urea applied per mu is 21.7kg, wherein 6.5kg of urea is sprinkled before sowing, then 15 ~ 20cm of rotary plowing, and then ridging and sowing. Ditches with a depth of 5-7 cm were opened on both sides of the ridge at the initial flowering stage, full flowering stage, and early fruit-full stage of peanuts, and then fertilizer strips were applied in the grooves, and then covered with soil. The quantity of topdressing urea for 3 times was 4.3kg, 6.5kg, 4.3kg respectively. Others are the same as ordinary cultivation methods.

[0010] Conventional method: use urea (46% nitrogen) for nitrogen fertilizer, the total amount of urea per mu is 27.2kg, all ure...

Embodiment 2

[0015] In the field test at the output level of 500kg per mu, the soil type of the test field is loam, the available nitrogen is 125.3mg / kg, and the tested variety is Huayu No. 22.

[0016] Nitrogen application method of the present invention: nitrogen fertilizer uses urea (nitrogenous 46%), and the total amount of urea applied per mu is 18.5kg, wherein 5.5kg of urea is sprinkled before sowing, then 15 ~ 20cm of rotary plowing, then ridging and sowing. Ditches with a depth of 5-7 cm were opened on both sides of the ridge at the initial flowering stage, full flowering stage, and early fruit-full stage of peanuts, and then fertilizer strips were applied in the grooves, and then covered with soil. The quantity of topdressing urea for three times was 3.7kg, 5.5kg and 3.7kg respectively. Others are the same as ordinary cultivation methods.

[0017] Conventional method: use urea (46% nitrogen) for nitrogen fertilizer, the total amount of urea per mu is 27.2kg, all urea is applied a...

Embodiment 3

[0022] In the field test at the output level of 600kg per mu, the soil type of the test field is loam, the available nitrogen is 138.4mg / kg, and the variety tested is Huayu 22.

[0023] Nitrogen application method of the present invention: nitrogen fertilizer uses urea (nitrogenous 46%), and the total amount of urea applied per mu is 26.1kg, wherein 7.8kg of urea is sprinkled before sowing, then 15 ~ 20cm of rotary plowing, then ridging and sowing. Ditches with a depth of 5-7 cm were opened on both sides of the ridge at the initial flowering stage, full flowering stage, and early fruit-full stage of peanuts, and then fertilizer strips were applied in the grooves, and then covered with soil. The quantity of topdressing urea for 3 times was 5.2kg, 7.8kg, 5.2kg respectively. Others are the same as ordinary cultivation methods.

[0024] Conventional method: use urea (46% nitrogen) for nitrogen fertilizer, the total amount of urea per mu is 32.6kg, all urea is applied at one time ...

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Abstract

The present invention provides a high-yielding peanut efficient nitrogen application method, which is high-yield, nitrogen-saving and environment-friendly. All nitrogen fertilizer is applied by four times: before sowing, at early flowering season, at full-bloom stage and at early full fruit stage, with a respective application amount of 30 wt%, 20 wt%, 30 wt% and 20 wt%. The high-yielding peanut efficient nitrogen application method provided by the present invention employs a decrement and splitting application method according to nitrogen requirement amounts of plant in different growth periods, so as to satisfy nitrogen requirement by peanut and avoid series of adverse consequences caused by high soil nitrogen concentration in the early growth period; and the method can prevent fast peanut growth in the early stage, serious excessive growth and lodging in medium stage, and insufficient fertilizer and premature senility in the late stage, increase the number of peanuts per plant and rate of full-pod, and realize pod increase by 8.7-14.9% and nitrogen saving by 20-32%, thereby realizing yield increase, nitrogen saving, efficiency and environment-friendliness at the same time.

Description

technical field [0001] The invention relates to a nitrogen fertilization method, in particular to a high-efficiency nitrogen fertilization method for high-yield peanuts. Background technique [0002] The traditional fertilization method is to apply the nitrogen fertilizer required by peanuts as a base fertilizer at one time, and no top dressing is required during the growth period. Under high-yield conditions, especially in plots with a peanut yield of more than 500kg per mu, this fertilization method is not conducive to the robust growth of plants and the utilization of nitrogen fertilizer, which is not conducive to the formation of yield. The reason is: after all nitrogen fertilizers are applied to the base, the nitrogen concentration in the soil before and after sowing will be too high, causing the following adverse reactions: one is to greatly limit the infection, reproduction and nitrogen fixation capabilities of root nodules at the seedling stage and flower needle stag...

Claims

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Application Information

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IPC IPC(8): A01C21/00
Inventor 王才斌冯昊郑亚萍郑建强李安东万更波张贵国杜连涛
Owner SHANDONG PEANUT RES INST
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