Rushan Jinguo Food Co., Ltd , https://www.jinguofood.cn
Onions are good, but the requirements for fertilizers are not high. Weak absorption ability of Welsh onion roots, in order to increase the output of Welsh, we must pay attention to increase fertilization material. According to measurement, for each 1000 kg of fresh onion grown, approximately 2.7 kg of nitrogen (N), 0.5 kg of phosphorus (P2O5), and 3.3 kg of potassium (K2O) should be absorbed from the soil. Onion assimilates potassium, followed by nitrogen fertilizer, and phosphate fertilizer. least. In addition, calcium, magnesium, manganese, boron, etc. have a certain effect on the growth of green onions.