Dry raising and throwing planting method for single-season late rice

Abstract

The invention discloses a dry raising and throwing planting method for single-season late rice, which comprises the following steps of: preparing a seedling bed and a seedbed; sowing on May 20-30, sowing the middle-matured varieties 5 days ahead of time, sowing the early-matured varieties 3 days ahead of time, throwing seedlings within 30 days of seedling age and before June 20-30; dispersing moisture and hardening seedlings in time when 60 percent of seedlings come out, wherein the dry seedlings are mainly cultivated by drought, the leaves of the seedlings are rolled in a sunny day, wateringthe seedlings in the morning and in the evening, and spraying 0.1 percent of urea solution when the seedlings lack fertilizer at the same time; preventing and treating the rhizoctonia solani and the gray planthopper; applying the fertilizer in a follow-up way and sending the medicine to the field; uniformly throwing seedlings, throwing 18,000 to 20,000 holes per 667m 2 in the field, and planting 3-4 seedlings per hole, sealing weeding and topdressing, killing seedlings and weeds in a baking field, applying flower fertilizer to promote strong stems and preventing and treating diseases and insects in the ear stage, and harvesting in time when 95 percent of the seedlings are mature. The dry raising and throwing planting method for single-season late rice has the advantages that rice seeds aresaved; the basic nutrient growth period is relatively prolonged, the seasonal contradiction and the adverse climate influence are relieved, and the panicle is safely formed; the production and efficiency are increased; the cost is saved; the dry cultivation and throwing planting can be used for irrigating 2-3 times less than that of a blanket seedling planting machine and a direct seeding machine, so that the water source is saved.

Description

technical field [0001] The invention relates to the technical field of crop cultivation, in particular to a single-crop late rice dry-raising throwing cultivation method. Background technique [0002] Rice is one of the most important food crops in China, with a large sowing area, and has an important strategic position in China's food production. The area of ​​rice in my country accounts for about 29% of the total area of ​​food crops, and the total output accounts for 44% of the country's total food production. , More than 90% are concentrated in the southern rice-growing areas, of which double-cropping rice accounts for more than a quarter of the country's rice planting area, mainly concentrated in Jiangxi, Hunan, Guangdong, and Guangxi. Rice is also one of the crops that require the most fertilizer. Extensive fertilization increases the cost of crop production, pollutes the environment, and causes energy waste. The increase in rice yield and fertilizer utilization has an ...

AI Technical Summary

Problems solved by technology

Rice is also one of the crops that require the most fertilizer. Extensive fertilization increases the cost of crop production, pollutes the environment, and causes energy waste. The increase in rice yield and fertilizer utilization has an important relationship with topdressing. The fertilizer requirements of rice in different periods also vary. Different, fertilization at the seedling stage is crucial to the growth of rice