Generally, for every 100 kg of rice produced, it is necessary to absorb 2.25 kg of nitrogen, 1.1 kg of phosphorus pentoxide, and 2.7 kg of potassium oxide. N: P2O5: K2O = 1: 0.49: 1.2.
Two peaks of absorption were formed at 2-3 weeks and 7-9 weeks after transplanting, and the absorption of nitrogen was earlier, and 80% of total absorption was reached before ear differentiation. Potassium differentiated from ear to flowering stage. The absorption is the most, accounting for about 60% of the total amount, and the absorption stops after the flowering occurs. The absorption of phosphorus is slightly later than that of nitrogen and potassium. In short, the amount of nutrients absorbed by rice before heading has accounted for the majority of total absorption, so attention should be paid to the early supply of various fertilizers.
Total 1 | <First <Prev 1 Next> Last> |
share to:
Jumbo Roll,Aluminium Foil,Aluminium Jumbo Foil,Aluminum Foil
Zhengzhou Yearshine Industry Co., Ltd , https://www.zzyscorp.com