Site selection and land preparation In the early stage of rice dry cultivation, it is natural to produce seedlings. The quality of seedlings is closely related to soil quality, soil fertility and land preparation quality. Therefore, the plots with low terrain, flat and fertile conditions and certain irrigation conditions should be selected; the groundwater level is high, and the spring and summer and autumn are all in a wet and cold immersion state or a saline-alkali-heavy plot, and it is not suitable for dry rice. Sowing at the right time Sowing is too early, the temperature is low, the rice species are not easy to germinate, and the seedling rate is low; although the late sowing temperature is high, the soil water is more dispersed, and it is not easy to be fully seeded, and the yield is affected by the shortening of the growth period. Therefore, it is necessary to determine the appropriate sowing date according to the soil moisture and the length of the variety. The Liaoning area is generally suitable from mid-April to the end of April. Seeds must be selected and soaked. In order to avoid the harm of underground pests, the seed dressing should be carried out, and the sowing amount should be appropriately increased, and 10 to 12.5 kg per mu is suitable. Under normal circumstances, it is possible to carry out the seeding, and the soil is better than the board, and the plot with heavier grass in the first year is better. The lyrical plots are 2 to 3 cm deep, and the depth of the lyrical spread can be 4 to 5 cm. Strengthen water and fertilizer management In order to promote the development of seedling roots and enhance the ability to resist drought, combined with the land preparation of about 3,000 kg of agricultural fertilizer, 15-20 kg of fertilizer, 35 kg of superphosphate. According to the condition of the seedlings, the fertilizer and panicle fertilizer are applied as appropriate. The rice seedlings began to water at 4 to 5 leaves, but no water layer was established. If the water source is convenient, the water should be poured every 3 to 5 days, so that the water does not see the water before, and the wetness is not seen. If the water source is insufficient, it should be ensured that the key water is poured 5 times, that is, water, water, and water. , heading water, grouting water. The principle of watering is: "The head water is early, the second water is full, and the first three waters are poured." Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone External Sunshade Series,Control The Temperature,Black Shade Net Cloth,Flat Wire Sun Shade Net Changzhou Green Nets Co.,Ltd. , https://www.gnshadenet.com
Dry rice has skills
Rice dry cultivation is an important cultivation technique for drought resistance, water conservation, labor saving, cost saving and synergy. The main technical tips are: