High-yielding Rice Cultivation Water Management "24 Characters"
The water management techniques of “cultivating shrubs in shallow water, inch water returning green, thin moisture seedlings, seedlings enough for drying in the field, water-in-head promotion, and moist seeding†are important technical links for high yield and stable rice production. It can achieve early rice survival, early tillering, robust plant growth, increased plant comprehensive resistance, and increased yield per unit area. 1. Shallow-water planting: When the rice is transplanted, the surface of the field must maintain a certain depth of water layer, which can prevent the emergence of planting and excessive water loss in the planting and the phenomenon of wilting. The depth of the water layer should be controlled flexibly according to the size of the seedlings, and the depth of the water should be about 1/3 of the plants after flooding. 2, inch water back to green: 7-8 days after transplanting rice is in the returning green stage, the rice field in this period can not be lack of water to prevent wilting, is not conducive to survival. In this period, the surface water layer should be kept around 3-3.5 cm. 3. Thin water pods: After the rice has returned to green, it enters the stage of tillering. In order to promote early growth and rapid growth, the roots are well developed and the plants grow robustly. The field water layer is maintained at about 1.5-2.0 cm, which can increase the water temperature and mud temperature. Large temperature difference between day and night, and sufficient light at the base of plants, creating a good environment for the early growth of rice. 4, Miao enough sun drying: When the tiller reaches the expected target of about 80% of the effective ear should be withdrawn from the water cool field, in order to control the occurrence of invalid tiller, improve the rate of spike. 5, inch of water to promote the panicle: rice after jointing (when some varieties jointing) entered the period of young panicle differentiation, rice is the most demanding period of water, should avoid water shortage. In this period, it is better to keep the surface water layer about 2-3 cm. 6, moist and strong seeds: Rice enters the filling period, the same need to supply water, but too much water will make the soil oxygen supply is insufficient, reduce root activity, leading to premature aging of the leaves, affect the increase of 1000-grain weight and rice quality. This period of water management should use intermittent irrigation methods to keep the soil moist. Medical Equipment,Medical Dental Unit,Dental Medical Equipment,Medical Dental Equipment ZHEJIANG FOMOS MEDICAL TECHNOLOGY CO.,LTD. , https://www.ifomos.com