Rice field must master "heating"
Rice drying field is an important measure to improve the soil structure of rice fields, promote root barrow undershoot, increase rice root vigor, improve the toughness and lodging resistance of rice straw, control ineffective tillering, increase the rate of success, improve the field microclimate, and reduce the occurrence of rice pests and diseases. . However, if rice is cultivated in the field, it can be achieved only if it has a good grasp of the “heatingâ€. In the field of drying time, we must adhere to the principle of “if the seedlings are not equal, when they are not equalâ€. The so-called "maturity to unequal time" refers to sufficient seedlings (generally, the total number of stems per mu is 200,000 to 250,000) and it is necessary to dry the fields without having to wait until rice grows and develops for a certain period of time. Due to the strong ability of the hybrid rice to carry tillers, it is still possible to continue the tillering when it is first started. Therefore, the time for the sun drying should be appropriately advanced. When the total number of stems reaches 80% of the planned number of seedlings, the field will begin to grow. The so-called "time to seedlings" means that once rice enters the end of the tillering period and reaches the initial stage of young panicle differentiation, even if the total number of stems per mu does not reach the predetermined target, it must be drained in time. If you miss the opportunity, the sensitivity of rice to water will increase. In terms of the degree of drying up the field, we must look at the fields, see the seedlings, and see the weather flexibly. Green leafy, vigorously growing fertile fields, and low-lying, cold-dipping, muddy fields must be re-sunshine; leafy, green, thin, and fertile fields must be lightly sunned; In the soil field, the clay soil that becomes hard after the sun becomes hard, and it is difficult to make it soft after rehydration, and the “Wang Tian Tian†that lacks irrigation conditions is not suitable for drying the fields. The drying time is generally controlled at 5 to 7 days. The cracks in the chicken claws appear on the surface of the sun, and the leaf color of the seedlings turns pale, the leaves stand straight, such as swords, and the fields do not fall into the ground. The new root is the field surface, and the old root is down. should. After requisitioning the field, the water should be rehydrated. At the same time, according to the growing conditions of the seedlings, 2-3% of urea should be applied per acre until the water is no longer cut off before heading. This year, we must pay special attention to the fact that due to continuous drought and water shortages, some rice plants have been “sown in the fieldâ€, that is, the field has not reached the dry layer in the field, and some have even been cracked. This has caused difficulties in rice tillering and the number of seedlings is insufficient. In this case, it is necessary to implement shallow ploughing on paddy fields, loosen the topsoil, cut off the capillaries, reduce the loss of soil water, prevent large areas of the land from cracking, and facilitate the acceptance of rainwater. Once there is water, it is necessary to top-dress fertilizers in time to promote the growth of the seedlings. Monensin Granular,Monensin Growth Promoter,Monensin Antibiotics,Monensin Feed Additives Shandong Shengli Bioengineering Co., Ltd , https://www.shenglipharm.com