Rice is like high temperature, wet and short sunshine, and it is also one of the crops that require more fertilizer. Rice has to undergo two stages of vegetative growth and reproductive growth throughout its life. Nitrogen (N) 2.4 kg and phosphorus (P2O5) 1.25 kg potassium (K2O) 3.1 kg are taken from the soil for every 100 kg of grain produced. However, it should be noted that different growth stages have different fertilization requirements. According to the growth characteristics and fertilizer characteristics of rice during the growth period, combined with the characteristics of the Lei Li series seaweed fertilizer, the management methods for the application of the Lei Li series seaweed fertilizer in rice fields are as follows:
Base fertilizer: When planting the land, the application of 40% Lei Li seaweed compound fertilizer (20-10-10) 30-40 kg + multi-protection medium and trace element fertilizer 5-10 kg, covering the soil deep application, can fully guarantee the early stage of rice growth The need for a large number of nutrients, timely supplementation of trace element fertilizers, to avoid the occurrence of symptoms of deficiency, while the algae active substances unique to seaweed fertilizer can improve soil ventilation and improve fertilizer efficiency.
Topdressing: It is recommended to topdress twice in the whole growth period of rice. For the first time, the topdressing was carried out in the tillering stage of rice, and 25% of high-nitrogen-type Leili seaweed compounded granular fertilizer (20-0-5) was used for 25 kg; the second time was used in rice heading stage, and 25% of high-nitrogen type was applied in the mu. Lei Li Seaweed compound fertilizer (20-0-5) 10 kg, to promote tillering, improve crop resistance, increase the number of grains per panicle.
Foliar fertilizer: combined with the prevention and control of pests and diseases in the key period of rice growth, spraying foliar seaweed series liquid fertilizer on leaves, can effectively improve crop resistance, prevent and control rice blast, supplement trace elements needed by crops, promote grain fullness, and increase 1000-grain weight . It is suggested that in the nursery period, it can be sprayed 2-3 times with the lightning force 800 times liquid + Lei Ligenwang 1200 times, which can effectively prevent the blight and bacterial wilt; after transplanting the seedlings, the leaves are timely Spraying Leli 2000 Multi-functional Compound Liquid Fertilizer 1000 times liquid + Lei Li can be good 600 times liquid once; before tillering, the surface of the leaves is sprayed with Lei Li Sui Feng 600 times liquid + Lei Li friends 1200 times once, promote Miao Zhuang Miao Qi, effectively increase the rate of tillering and reducing the incidence of disease.
Wooden Pile Projection Lamp,Outdoor Wood Lights,Wooden Projection Lamp,LED Stake Projection Light
Sichuan Kangruntengpu Photoelectric Technology Co., Ltd. , https://www.krtoplighting.com