How to manage rice when planting rice? How to improve rice quality?

The key of rice field management is to apply more organic fertilizer, re-apply base fertilizer, control water temperature and prevent ecological diseases and insect pests. Select fine varieties, adopt advanced cultivation techniques, apply fertilizers rationally, strictly manage the fields, and scientifically control pests and diseases. Select fine varieties for reasonable close planting, strengthen water and fertilizer management, and scientifically control pests and diseases. Select high-quality varieties, rationally apply organic fertilizers or supporting fertilizers, and strengthen field management. Mainly suitable varieties, mainly to prevent rollover and rice blast, apply organic fertilizer and improve quality.

Rice is the main food crop in the world. China has a large planting area and relatively high output. Rice is generally planted in southern China, and high temperature accelerates development and transformation, leading to early heading. Lower temperature can delay the development and transformation, postpone the ear and prolong the growth time. How early rice tillers is not only affected by variety factors, but also by field temperature. When the temperature is lower than 20 degrees Celsius or higher than 37 degrees Celsius, it has a great influence on rice tillering. The most suitable temperature for rice ear development is about 30 degrees Celsius, which is lower than 19 degrees Celsius, and the rice ear development may be poor.

As the saying goes, after transplanting rice in Grain Rain and the solar term in Grain Rain, the temperature in most areas is stable above 15 degrees Celsius, and there is more and more rain in the Yangtze River basin, which is a good time for transplanting rice or returning seedlings to management. In the transplanting season, if rice is managed in this way, only the quality can be guaranteed in the later stage.

Water-saving technology should be adopted in the irrigation of rice growth period, and irrigation and drainage should be carried out according to the demand characteristics and requirements of rice growth period, which are mainly divided into deep-water meeting hall, shallow-water basin, deep-water spike and diving mature stage. When Erqing was transplanted, the root system of seedlings was damaged, the water absorption was small, and the evaporation of leaves was large. Therefore, after the seedlings are transplanted, they must enter the deep water and turn green. In order to prevent physiological loss, the optimum water depth is about 2 ~ 3 cm. Irrigation is too deep and nutrient decomposition is slow, which is not conducive to tillering. When rice needs a lot of water, especially during meiosis, the ear is more sensitive to water. At this time, water shortage will lead to membrane degradation, short panicle and many empty shells, so it is necessary to maintain a 2 cm aquifer in the field during heading, heading and heading.

Rice encounters staged low temperature and light rain. Pollen adsorption is easy to break, empty shells increase, and early frost appears in early September, which leads to the failure of normal grouting and milking of rice. Excessive wind speed will directly damage the organs of rice, increase empty grains, directly affect the seed setting rate of rice, and cause yield reduction.

Select excellent varieties with strong disease resistance, cultivate seedlings, apply more silicon fertilizer, improve leaf toughness, promote root development, prevent leaf drooping, reduce coverage and create a good light environment. Improve the ability of epidemic prevention. Please pay attention to the weather changes at the heading stage of rice. When the temperature is lower than 17, the water layer should be deepened by 15 ~ 17 cm, and the water should be kept warm. After the temperature rises, the raw water layer should be restored to make the rice mature normally. Under the condition of not affecting the yield, appropriately reducing the amount of nitrogen fertilizer and increasing the amount of potassium fertilizer, starting from the flower-promoting fertilizer, and applying it once at each leaf age, can improve the ability of rice plants to absorb potassium fertilizer, reduce side effects and greatly increase the ear weight. Increase rice yield