Method suitable for cultivating middle-season indica two-line hybrid rice in Anhui rice area

Abstract

The invention discloses a method suitable for cultivating middle-season indica two-line hybrid rice in the Anhui rice area. The method includes the following steps that rice field transplanting or large field seeds are selected and sown in the first ten-day period of May; a rice field is selected, and processed fertilizer is mixed with rice field seedling soil; after a sunny day is selected for seed airing, the seeds are soaked in 1000-fold running water containing 8% of whitewash and 60% of carbendazim for 48 h and stirred three times a day, germination is accelerated until seed coats are broken to expose inner white parts, and then the seeds are spread and cooled for sowing; the rice field hybrid rice is sown, covered with soil after being sown and then covered with a mulching film; at the seedling age of 30-35 days, urea is applied to the field by the ratio of 4-5 kg / mu in the two-leaf-one-heart stage to serve as ablactation fertilizer, and 4-5 kg of urea is supplementarily applied in the four-leaf-one-heart stage to serve as balance fertilizer; large field transplanting is carried out at the density of 4*7 or 4*8 cun, and 1-2 seed seedlings are planted in each hole. The method suitable for cultivating middle-season indica two-line hybrid rice in the Anhui rice area is high in cultivation adaptability, and the middle-season indica two-line hybrid rice is suitable for being cultivated and popularized in the whole rice area in Anhui and has the prominent advantages of being high and stable in yield, high in quality and high in adaptability.

Description

technical field [0001] The invention belongs to the technical field of rice planting, and relates to a method suitable for cultivating medium-indica two-line hybrid rice in Anhui rice region. Background technique [0002] With the continuous development of science and technology, rice planting has fundamentally improved regardless of the yield and quality. However, development is endless, and there is still great potential for improving rice planting. For example, the existing rice planting methods have a large amount of water, fertilizer and pesticides, and with the increase of water and fertilizer Although the seedlings grow vigorously, this will further aggravate the pests and diseases. In the usual planting method, the yield cannot be increased, but the water, fertilizer and medicine are greatly increased. On the one hand, this not only increases the amount of pesticide residues in rice, but also increases the planting cost; waste. [0003] Improving the yield per uni...

AI Technical Summary

Problems solved by technology

However, development is endless, and there is still great potential for improving rice planting. For example, the existing rice planting methods have a large amount of water, fertilizer and pesticides, and with the increase of water and fertilizer Although the seedlings grow vigorously, this will further aggravate the pests and diseases

In the usual planting method, the yield cannot be increased, but the water, fertilizer and medicine are greatly increased. On the one hand, this not only increases the amount of pesticide residues in rice, but also increases the planting cost; waste

[0003] Improving the yield per unit area of ​​rice is still one of the major issues that need to be solved today, but the current technology is limited to the cultivation of excellent varieties, which include hybrid rice sterile lines and maintainer lines. To achieve high yield, rice gene technology research is still in its infancy