How to get high yield of virgin fruit?

First, throw seedlings at the right time to give full play to the advantage of early birth and quick development. There is less soil in the seedling tray, and under the premise that the seedlings can be picked up and the soil is not scattered, the sooner the seedlings are thrown, the better. Generally, the seedlings can be thrown after about three leaves for 20 days after the early planting and 10 days for the late planting. The shorter the seedling, the faster the growth of the seedling, the advantage of early growth and rapid development of throwing seedlings can be brought into full play, and the yield will be high. Generally speaking, it is more appropriate to sow seedlings in the middle or late March. Second, control the density of throwing seedlings, reduce the occurrence of diseases and insect pests and enhance lodging resistance. In recent years, the number of throwing seedlings per mu is generally maintained at 40-50 plates, about 18-20 thousand holes, which is determined according to the transplanting density, ignoring the characteristics that throwing seedlings grow faster, more and better than transplanting seedlings. Therefore, it will often cause undesirable phenomena such as excessive density, uncontrollable invalid tillers, many diseases and insect pests, lodging and so on. In order to change this phenomenon, the fundamental way is to control the seedling throwing density, 30ml / mu field seedling throwing 35 plate seedlings (factory seedling 25ml 30 plates), about 1.2-15000 holes are better, that is, save seeds and increase yield. Third, master the skills of throwing seedlings to reduce the shortage of seedlings. Before throwing seedlings, Honda should rake flat and divide the beds (2-3 meters wide each), and the seedlings should be quantified (divide seedlings according to the border or area). When throwing seedlings, throw 70% of the seedlings first, and the remaining 30% of the seedlings should be filled in the blank. Pay attention to people walking around, do not step on the throwing place, in case the footprints are too deep, the seedlings sink into the footprints and drown. In addition, raking the field one day in advance to let the soil settle and then throw seedlings, the effect is better. If the seedling is thrown unevenly, all the seedlings will be replenished at regular intervals for 6 days after seedling throwing, and it is best not to do so immediately. Fourth, apply enough base fertilizer and topdressing in time. The application of sufficient basal fertilizer is the foundation of rice production, and seedling throwing is no exception. When running a field in Honda, 40% Murray and 60% fertilizer can be applied, and organic fertilizer and phosphate fertilizer can be composted for a month in advance. Organic fertilizer, phosphate fertilizer and ammonium bicarbonate are applied when raking the field, and urea can be applied before throwing seedlings. Tillering fertilizer should be applied sooner rather than later, topdressing once 5, 10 and 15 days after seedling throwing, combined with urea and potash fertilizer. Ear-beating fertilizer was applied once 35 and 55 days after seedling throwing, combined with compound fertilizer and potash fertilizer. Fifth, drainage and drying the fields in time to prevent the occurrence and lodging of diseases and insect pests. In order to increase the air in the soil and improve the root activity of rice, it is necessary to start draining and drying the field 30 days after throwing seedlings, which can not only reduce the occurrence of diseases and insect pests, but also increase lodging resistance. Drainage drying time depends on the weather, generally require people to walk in without footprints as good, and then keep dry and wet. Sixth, do a good job in the prevention and control of diseases and insect pests to ensure high and stable yields. Pest control is the key to planting high-quality rice, especially the disease resistance of high-quality rice is often not as good as that of hybrid rice, so special emphasis should be placed on disease control. When draining and drying the field, Tian'an was sprayed to prevent sheath blight, and "Fuji No.1" and "Kemianjing" were sprayed to control panicle neck blast at break stage and full heading stage, so as to ensure high quality, high yield and stable yield.