Field management during rice heading and fruiting period
Sodium Nitrate,Potassium Nitrate,Strong Oxidizer Xuzhou First Chemical Co., Ltd , http://www.chfertilizer.com
Rice heading and grain-filling period is the final stage of grouting strong seeds to increase yield, improve quality and maintain long-term goodness in the fall, from time to time to harvest. In this period, the central task should be foliar fertilization, intermittent irrigation, control of rice borers, and keeping the live stalks mature without lodging. The specific measures and operations are as follows: 1. Spraying foliar fertilizers Improves maturity and plumpness. From the perspective of improving quality, it is not appropriate to disperse long-acting nitrogenous fertilizers such as urea. Instead, it is advisable to spray foliar surfaces after the full-fledged yellow-leafed plots. Generally, potassium dihydrogen phosphate is applied per hectare. 2.5 kg and urea 4-5 kg, 400 kg watered spray, with good flowering spray effect. Or use bio-potassium, Jinmanli, Huimanfeng, and plant growth regulators, etc., so that it is not only effective for increasing seed production; it is also very important for prolonging root vigor, keeping live rods mature, preventing lodging, and improving quality. The role. 2. Intermittent Irrigation When rice heading and flowering enters the grain filling stage, intermittent irrigation is used, that is, water is poured and the water is dried before irrigation. The current tidal water seepage, and then the tidal water after irrigation, this can increase the permeability of the soil to achieve this gas roots, root protection leaves, leaf production, so that the deep roots of rice leaves, ensure the three late functional rice leaves, blue The green leaves do not prematurely decline, increase the photosynthesis of leaves, increase the accumulation of sub-solid dry matter, accelerate the speed of grain filling, promote the maturation of seeds, increase the maturity, increase grain weight, and achieve high yields. 3. Timely prevention and control of pests, rice, hordeum, rice blight, rice blast, early prevention. Double-effect micro-fertilizer 800 times evenly sprayed, sprayed within 6 hours after spraying. The above-mentioned several kinds of diseases have better prevention and control effect, and can increase rice production by about 15%. In this period, it is necessary to timely defend the rice borers in the headland of Tanabe to ensure that functional leaves are not damaged, so as to achieve the purpose of increasing production, increasing income, and improving quality. 4. Eliminating late-stage weeds in time to prevent floating weeds such as arbutus and moss, and remove weeds from grassy fields, ponds, channels, and land weeds in order to prevent light from affecting elevation of water temperature and reduce grass shortages in the following year. , reduce the source of pests and diseases. 5. The main reasons for lodging prevention caused by lodging on the production: First, inappropriate fertilization, excessive Nitrogen Fertilizer application, too much fertilizer in the early stage, excessive aging, premature aging due to defermentation of hunger, wilting of stems and leaves, irrigation, disease and insect damage. The impact of wind and rain caused the collapse. The roots of lodging should be changed from unscientific fertilization to good selection of varieties, sparse sowing, shallow water ground irrigation, timely drying, etc. to improve the cultivation and management level.