According to meteorological predictions, from June to August, most of the northeastern part of the country has more rainfall, and there are staged low temperatures. If there is a staged low temperature, the delayed growth period and the early frost "meet" will have an adverse impact on rice production. At present, the rice in Liaoning Province continues to show low temperature and rain in June. The effect of widowing leads to aggravation of herbicides, slow rice seedlings and less tillering. The growth and development process is obviously delayed, and the general situation is 7-10 days late. It is almost a foregone conclusion. The response is to do everything possible to promote precocity, strengthen field management, promote growth and promote early maturity, prevent low temperature, anti-cold room, anti-early frost.
1, to use scientific irrigation, to accumulate temperature, promote early maturity, to use shallow wet irrigation, that is, shallow water irrigation and intermittent irrigation combined.
2, anti-temperature cold damage, reduce rice empty seed, when rice panicle differentiation period, the most sensitive to low temperature, that is, 10 days before heading, center, one week, should pay attention to the weather forecast, when the temperature is lower than 17 degrees Water should be poured to 17-20 cm, deep-water protection tires, and defensive obstacles.
3, prevention and control of rice blast, increase the number of grains per panicle, to maintain stable yield and high yield, this year's climate is prone to rice blast, rice should be sprayed once in the booting stage and the heading stage, it is best to take the enemy to stabilize the rice plague, spray It is best to spray before 10 o'clock in the morning or after 3 o'clock in the afternoon, so as not to affect rice pollination.
4, reasonable topdressing, control of nitrogen fertilizer, increase the application of potassium fertilizer, to prevent gluttony late maturity, this year must increase the application of potassium fertilizer, one hectare of potassium sulphate 100 kg, can promote rice reproductive growth.
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