Hybrid rice growing method for promoting tillers

Abstract

The invention discloses a hybrid rice growing method for promoting tillers, which belongs to cereal crop growing methods. In the prior art, after the hybrid rice seedlings are transplanted to the rice field, the tillers become fewer, and the growing frequency becomes low, thereby influencing the yield increase. The method comprises the following steps: in mid and late October, sowing primed seeds on a seedbed in a transparent greenhouse, breeding for 40-50 days to obtain plantlets, and transplanting the plantlets to a reserved seedling field in the transparent greenhouse to obtain seedlings, wherein the temperature in the transparent greenhouse is controlled at 4-15 DEG C; and from late March to early April in the next year, transplanting the seedlings to the rice field until the seedlings become ripe. Through the seedling breeding and transplanting in the low temperature period, the invention has the advantages that the seedling age is prolonged, the germination period is controlled, and the hybrid rice seedlings are enabled to experience photosynthesis for a longer time and absorb the nutrition so as to reserve functions for growth in later periods, so that the number of tillers after transplanting reaches 3-5 times of that of the conventional growing. Meanwhile, the invention ensures that the growing time of hybrid rice is changed, so that two crops of hybrid rice can be grown in one year, thereby increasing the yield.

Description

technical field [0001] The invention belongs to a planting method of food crops, in particular to a hybrid rice planting method for promoting tillering by cultivating seedlings, and at the same time changing the growth period of the hybrid rice to increase planting frequency. Background technique [0002] Improving the yield per unit area of ​​rice is still one of the major issues that humans need to solve today, but the current technology is limited to the cultivation of excellent varieties, which include hybrid rice sterile lines and maintainer lines, respectively. To achieve high yield, the genetic technology research of rice is still at the primary stage (hybrid rice refers to the selection of two rice varieties that have certain differences in genetics and can complement each other in their excellent traits, and carry out hybridization to produce the first hybrid with heterosis. first generation hybrids for production). [0003] And after the seedling of existing hybri...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved and the technical task proposed by the present invention are to overcome the defects that the existing hybrid rice seedlings have fewer tillers after transplanting to the paddy fields, and the planting frequency is low, which affects the increase in yield, and provide a hybrid rice seedling that promotes tillering by cultivating seedlings. Rice cultivation method while changing the growth period of hybrid rice to increase the frequency of cultivation