Fertilization characteristics of corn and fertilizer application rate
For every 100 kg of corn kernels produced, 2 to 4 kg of pure nitrogen, 0.7 to 1.5 kg of phosphorus, and 1.5 to 4.0 kg of potassium are required. If the yield per mu of corn is 400 kg, an average of 40-60 kg of ammonium sulfate or equivalent of other nitrogen fertilizers per acre; 40-60 kg of superphosphate (10% to 16% of active ingredient) or equivalent Heavy superphosphate (internal component water content 36%~52%) and calcium magnesium phosphate fertilizer (active ingredient content 12%~16%); 6~10 kg potassium sulfate (active ingredient content 48%~52%) or chlorine Potassium (the active ingredient content is 50% to 52%). Potassium fertilizer can also be replaced by grass ash, which is 40~60 kg per acre (dry ash, no impurities). In determining the amount of corn to be fertilized, factors such as the type of cultivation, variety characteristics, yield levels, soil and climatic conditions should be considered. Due to the small plant growth and slow growth, the nutrient absorption and utilization are also small. The growth rate of corn is accelerated when the jointing is to the heading and flowering stage. The vegetative growth and reproductive growth go hand in hand, and the absorption and utilization of nutrients are obviously increased. After that, vegetative growth is almost at a standstill, so the absorption and utilization of nutrients is greatly reduced, and it is almost stagnant. Enema Health Care ( Invisible ) JIAMAI a completely had subsidiary of Albert Novosino, responsible for the worldwide trade business. Enema Bag, PVC Enema Bulb, SS Enema Bucket, Enema Device Ningbo Jiamai Internet Technology CO., Ltd. , https://www.jmcuhyd.com
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