Late hybrid rice grows luxuriantly, has large vegetative bodies, large panicles and large grains, requires more fertilizer than conventional varieties, and has a tight growing season, a short effective tillering period, less organic fertilizer, high temperature at the early stage, fast decomposition of fertilizers, and easy off in the middle and late stages. Because of the premature aging of fertilizers, the application of good panicle and granular fertilizers has a great effect on increasing the yield of late rice.
Application of panicle fertilizer: Fertilizer topdressing during the development of young panicle differentiation is called panicle fertilizer, which can be divided into two periods: flowering and flowering. Fertilizer can be applied in the early stage of late panicle differentiation of young panicle to flowering stage of spikelet, that is, in the early stage of jointing, or after rehydration in the drying field. The field is insufficient for early fertilization, late insertion, poor growth, few seedling numbers, and the leaf color that can not be picked up after rehydration Block, it should be applied early, generally 3-5 kg ​​of urea. The flowering fertilizer is applied 17-20 days before heading, that is, before and after the 4th stage of spikelet differentiation, that is, when it is snoring, it is currently preventing the degradation of spikelets, increasing the number of grains per panicle and increasing the number of grains. . It depends on the leaf color, seedling condition, soil quality, weather, and the level of top-dressing. Generally, 2-3 kg of urea, 3-5 kg ​​of potassium chloride, and 5-8 kg of superphosphate are mixed and applied; in late rice fields where growth is poorly deferred, nitrogen may be appropriately increased, but not more than 5 kg of urea. It is advisable to avoid excessive amounts of late-late rice late-maturing. After fertilization, you should keep the field water for about 3 days, and let it fall naturally afterwards.
The application of granular fertilizer: When the majority of rice spikes are being extracted, one of the grains is used as a fertilizer when one level of grain is exposed and one grain or two grains are exposed. Grain fertilizer is also called “breaking fertilizerâ€. This fertilizer can increase the amount of grouting material, promote grain development, and fully develop the aborted grain, thereby increasing the seed setting rate and increasing the yield. This is an important technology for the high yield of hybrid late rice. Since hybrid rice still requires more fertilizer after heading, grain fertilizer should pay attention to the application of nitrogen, phosphorus and potassium in order to receive better yield increase. If nitrogen fertilizers are biased and biased, it will cause greediness and lodging, and will reduce production. In general, grain fertilizer should use 100 g of potassium dihydrogen phosphate per acre and water 50 kg for foliar spray. Such as lighter leaf color, there are symptoms of nitrogen deficiency, potassium dihydrogen phosphate can be used 100 grams plus urea 0.5-1 kg, watering 40-50 kg foliar spray, 7 days after spraying, if the leaf color is still relatively light, you can spray Apply 1 time. Generally choose cloudy or sunny at around 9:00 AM or after 5:00 PM. The spray should be uniform and the leaves and leaves should be sprayed. (Cao Dihuan Tan Gang)
Amber Sterile Vacuum Vials are used for allergist,mixing injectable products or nuclear medicine, PET-CT, Liquid collection.Amber Sterile Vacuum Vials are produced by aluminum caps, non-latex butyl stoppers and clear SCHOTT Neutral Type I glass vials. They are approved by cGMP and FDA with internally sterile.The production process is carried out under strict Class 100 workshop. Finished vials can meet the FDA`s authorised 14-day sterility test.
Amber Sterile Vacuum Vials
Amber Sterile Vacuum Glass Vials,Amber Sterile Evacuated Vials,Amber Sterile Evacuated Glass Vials
China Lemon Trading Co.,Ltd , https://www.sterilevial.nl