Cultivation method for one-time fertilization of rice

Abstract

The invention discloses a cultivation method for one-time fertilization of rice, which comprises the step of applying a controlled-release fertilizer as a panicle fertilizer to a rice field at one time, is suitable for rice planting in paddy-upland rotation fields and winter fallow fields, is low in nitrogen fertilizer consumption and high in rice yield, adopts one-time fertilization, reduces labor input and is simple. The earing fertilizer adopts a high-nitrogen controlled-release fertilizer, and the nitrogen content of the earing fertilizer is 24% or above. The panicle fertilizer is applied at a time when the last fourth leaf of the total leaf number of the main stem of the rice is exposed, and water in the rice field is naturally dried before the panicle fertilizer is applied. The method has the advantages that the method is suitable for rice planting in paddy-upland rotation fields and winter fallow fields, the nitrogen fertilizer consumption is small, the rice yield is high, one-time fertilization is adopted, labor input is reduced, and the method is simple; and more importantly, the residual fertilizer in the soil in the dry farming season is utilized to provide nutrients for early-stage growth of the rice, so that the application amount of the nitrogen fertilizer is effectively reduced, and the utilization rate of the fertilizer and the planting benefit are improved.

Description

technical field [0001] The invention relates to a rice fertilization cultivation method, in particular to a rice one-time fertilization cultivation method, and belongs to the technical field of rice fertilization application. Background technique [0002] The successful research and development of new controlled-release fertilizers provides an important material basis for changing the traditional fertilization method. The main feature of this type of fertilizer is that the nutrients in the fertilizer granules are gradually released, and it provides a continuous nutrient stimulus for the uninterrupted release of nutrients on the crops. Therefore, it has Incomparable advantages of traditional quick-acting fertilizers. [0003] Due to the effective delay of nutrient release and release rate, the controlled-release fertilizer can be applied at one time, which is basically consistent with the law of crop fertilizer demand, can basically meet the needs of crop growth and developme...

AI Technical Summary

Problems solved by technology

However, there have been reports on the one-time application of controlled-release fertilizers, all of which are used as a one-time application of rice base application. Compared with conventional high-yield batch fertilization, the yield is unstable and there is a risk of reduction. Some fields need to be topdressed with urea in the later stage

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