Second, we must pay attention to the control of nitrogen fertilizer. Excessive application of nitrogen fertilizer in rice will not only increase the number of inefficient tillers, turn green, lodging, and intensify pests and diseases, resulting in more empty grains and lower seed setting rate, which will affect rice yield. Nitrogen fertilizer is mainly used as top dressing. For the first time, 6-7 kg of urea is applied to the mu after rice transplanting. The second time is combined with Putian in the 13-15 days after the insertion, and 4-5 kg ​​of urea is applied to the mu. Strong. In the medium term, attention should be paid to the drainage and fertilizer control. Only the second and third types of seedlings with poor growth should be supplemented with some balanced fertilizer. In the later stage, the seedlings should be supplemented with 3-4 kg of grain fertilizer.
Third, we must pay attention to the application of phosphorus and potassium fertilizer. Phosphorus and potassium fertilizer can enhance plant vigor, promote nutrient synthesis and operation, enhance photosynthesis, extend the functional period of leaves, and make the grain full and full, and increase yield. The base fertilizer is suitable for phosphate fertilizer, and the potassium fertilizer is better. In the field with sufficient organic fertilizer, 20-40 kg of phosphate fertilizer per acre is applied, and 3.5-5 kg ​​of potassium chloride can be applied per mu before tillering. Spraying phosphorus and potassium fertilizers in the late stage of rice can promote the filling and fruiting. Spraying once in the late stage of heading and flowering, and using 50-100 grams of phosphorus and potassium fertilizer per acre, and spraying 50-60 kilograms of water in the evening.
Fourth, we must pay attention to the application of micro-fertilizer. Zinc fertilizer and silicon fertilizer can not only improve the supply of oxygen in rice roots, enhance the resistance and lodging resistance of rice plants, improve the disease resistance of plants, promote the development of roots in the later stage, prolong the functional period of leaves, prevent premature aging, and accelerate the development of flowers. Increase the amount of pollen, promote the germination of flower granules, and help to increase the rate of rice emergence; and also promote the large number of spikes, increase the seed setting rate and the grain filling degree, and increase the rice yield.
Flotation Slurry Pumps are the most comprehensive range of centrifugal slurry pumps for use in mining, chemical and general industry applications. It is including Centrifugal Flotation Slurry Pump, Horizontal Flotation Slurry Pump and Heavy Duty Flotation Slurry Pump. They are designed for heavy duty applications such as mill discharge, power sector and tailings as well as specialty applications, which are used for continuous pumping of high abrasive, high density slurry.
Product Features:
-Wear resistant metal or rubber wet end parts, long service life
-Wide options for Impeller
-Various types of pump seals to suit different working condition
-Grease or oil lubrication
-Discharge branch can be positioned at intervals of 45 degree
-Can be installed in multistage series
-Easy to maintain
Application Range:
Size: 25 mm to 450 mm
Capacity: up to 5000 m3/hr
Maximum Heads: up to 75 m
Flotation Slurry Pump,Heavy Duty Flotation Pump,Corrosion Resistant Pumps,Corrosion Resistant Flotation Pump
SHIJIAZHUANG MUYUAN INDUSTRY & TRADE CO., LTD. , https://www.cnmuyuan.com