High-yielding peanut efficient nitrogen application method

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...

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

Images