The tillering period of rice is the key period for determining effective delivery, and it is the basis for obtaining high yield. The focus of management technology is to take effective measures to ensure the whole seedlings and strong seedlings based on different varieties and soil quality. In the early period, "promoting" is the main factor, and the effective delivery in the early period is promoted. In the later period of delivery, the "control" is mainly used to control ineffective delivery, and the rate of spike formation is increased to ensure that the ear is large in size. Science Management Water Transplanting survival period should be kept 3-4 cm of field water, so that the field formed a more reasonable insulation, moisturizing environment, promote the occurrence of new roots, quickly return to green live trees. After returning green, the seedlings enter the tillering stage and should be irrigated with shallow water, generally maintaining a 2-3 cm water layer. When the rice tillers reach the number of tillers required for the expected yield, the field should be drained. Sundry has the effect of inhibiting soil nutrients first and then promoting them. It has a good effect on the control of rice populations, the promotion of vegetative growth from rice to reproductive growth, and the cultivation of large ear and multiple grains. Sun Tian generally grasps clay fields, low-level fields, and heavy fields. Sandy field, thin field light. The sun usually spreads to small cracks in the field, the foot does not fall, the leaf color fades, and the leaves stand upright. This will control the production of invalid labor and increase resistance to lodging and resistance to pests and diseases. Early application of fertilizer After rice returns to green, the amount of fertilizer needed gradually increases. At this time, the root system is mostly distributed in the topsoil and the supply of nutrients is insufficient. The tiller fertilizer should be applied in time. Generally, 4-5 kg ​​of urea is applied to mu, and the water is uniformly applied to keep the shallow water layer. Fertilizer should be used to control the fertilization field and thin fields. Fertilization method: The first is to apply fertilizer early. It is generally applied immediately after returning green. The second is to see seedling fertilizer. If there is a good situation, it will be less applied. In this way, Quantian grows up to basically the same level. After fertilization, the field must have a water layer and it must not be drained, and it should be drained naturally after being dried. Pest Control The control of leafhoppers is in the initial stage of leaf aphid, with 30g of 75% tricyclazole per mu or 100ml of 40% Fuji No.1 emulsifiable concentrate and 40-50 kg of water evenly sprayed. Rhizoctonia prevention and treatment at the end of labor, when the cluster incidence rate of 5% or more per mu with Jinggangmycin wettable powder 5 grams or 25% triadimefon wettable powder 50 grams plus water 40-50 kilograms of spray, spraying the middle and lower part of rice blade. The appropriate period of prevention and control of rice aphids is the period of tillering, and the use of pesticides should be controlled when the damage rate exceeds 1%. Control methods: Each mu can choose 20% triazophos EC 100 ml or 90% crystal trichlorfon 200 g, 25% insecticide bihydrate 200 ml, 80% insecticide 50 g, add water 40-50 kg spray. The prevention and control of rice planthoppers When 10 insects and more than 50 mouths are used for drug control, 10% imidacloprid wettable powder 30 g or 80% dichlorvos 100 ml, 25% purofurane 20 g water 40-50 kg spray per acre. Disposable Latex Gloves,Disposable Vinyl Gloves,Nitrile Glove,Latex Glove ZHANGJIAGANG DINSHENGLIN TRADING CO.,LTD , https://www.dslhouse.com