Waterlogging-resistant cultivation method of Brassica napus L.

Abstract

The invention discloses a waterlogging-resistant cultivation method of Brassica napus L.. The waterlogging-resistant cultivation method of the Brassica napus L. comprises the following steps of: carrying out rice field parcel ploughing on a Brassica napus L. field where preceding crops are planted, and after a rice field parcel is ploughed, adopting a ridger to carry out compartment making, ridging and ditching; carrying out sowing and fertilizer application, and carrying out mechanical sowing on a coated seed through a line direct seeding method; when a seed coating agent is manufactured, adding an oxygen producer which is urea peroxide; and carrying out sealed weed control: after sowing is finished, adopting 96% s-metolachlor to carry out the sealed weed control. By use of the waterlogging-resistant cultivation method disclosed by the invention, a Brassica napus L. waterlogging occurrence probability is reduced, compared with a wide compartment, a narrow compartment is unlikely to generate water accumulation, and a water accumulation risk can be reduced from the source. Since drainage ditches are added, field water drainage is smooth. Since the seed coating oxygen producer is adopted, oxygen is provided for the root system of the Brassica napus L. under a waterlogging condition, and the waterlogging-resistant capacity of the Brassica napus L. is improved.

Description

technical field [0001] The invention belongs to the technical field of plant cultivation, and in particular relates to a waterlogging-resistant cultivation method for rapeseed. Background technique [0002] Rapeseed is an important oil crop in my country, but there is a huge shortage of rapeseed in my country, and the dependence on foreign countries is as high as 30% to 40%, which seriously threatens the safety of oilseeds in our country. Therefore, increasing the yield of rapeseed is of great significance for alleviating the security of oilseeds in my country. The Yangtze River Basin is the main area for the production of winter rapeseed in my country. This region is characterized by a lot of rain. However, too much rain is a climate that is extremely unfavorable to the growth of rapeseed. The consequence of too much rain will cause soil waterlogging and waterlogging of rapeseed. The root cause of waterlogging in rapeseed is that after the soil is waterlogged, the soil la...

AI Technical Summary

Problems solved by technology

[0003] Waterlogging can occur at any stage of the entire growth period of rapeseed: for example, at the emergence stage, waterlogging affects the germination of rapeseed in the soil and the growth of radicle after germination, resulting in incomplete emergence; , it is easy to cause damping-off of rape seedlings, affecting the seedling population; in the large seedling stage, waterlogging causes fertilizer leaching loss due to excessive soil moisture, and at the same time, waterlogging affects the growth of rapeseed roots and reduces the absorption of nutrients from the soil by roots. leading to low nutrient use efficiency in rapeseed

[0004] If additional fertilizers are used to supplement the growth of rapeseed, the cost of growing rapeseed will be increased, and it will easily cause environmental pollution

During the bud moss stage, waterlogging affects the nutrient absorption of the root system, resulting in insufficient nutrient supply in the middle and late flowering stages of rapeseed, causing premature senescence and reducing yield

During the flowering period, waterlogging not only easily induces Sclerotinia sclerotiorum, but also affects pollination and fertilization, resulting in reduced yield of rapeseed

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