Green onions are one of the common vegetables in our daily life, but there are some taboos that need to be paid attention to in the planting process, so as not to affect the growth and quality of green onions. This article will introduce you to the three taboos of growing green onions to help you better grow green onions.
1. Avoid continuous cropping.
Onion should not be cropped continuously, because continuous cropping will lead to an imbalance of nutrients in the soil, increase the number of pathogenic bacteria and pests, thereby causing various pests and diseases, and seriously affecting the growth and quality of onion. Therefore, it is necessary to choose suitable land when planting onions and avoid planting onions in succession on the same land. In order to ensure the healthy growth of green onions, the land can be deeply cultivated and disinfected before planting, increasing the air permeability and nutrient content of the soil, and improving the fertility of the soil.
2. Avoid excessive fertilization.
The growth of green onions requires the right amount of nutrients, but excessive fertilization will lead to excessive soil salinity, which will affect the growth and quality of green onions. At the same time, excessive fertilization can also lead to soil acidification, damage to soil structure, and reduce soil fertility. Therefore, when planting shallots, it is necessary to apply an appropriate amount of fertilizer, and the amount and time of fertilization are determined according to the fertility of the soil and the growth of the shallots. Generally speaking, 500-1000 kg of organic fertilizer can be applied per mu of land, and an appropriate amount of phosphate and potassium fertilizer can be applied to meet the growth needs of green onions.
3. Do not neglect pest control.
Pests and diseases are one of the important factors affecting the growth and quality of green onions. In the process of planting onions, it is necessary to regularly check the growth of onions, and find and control various pests and diseases in time. Different pests and diseases require different control measures. For example, for onion rust, you can spray **keto wettable powder for control;For aphids, yellow plates can be used to trap or spray imidacloprid for control. In the prevention and control of pests and diseases, it is necessary to pay attention to the dosage and use of drugs to avoid affecting the growth and quality of green onions. At the same time, it is also necessary to pay attention to the safety of drugs and avoid the use of drugs with high toxicity and high residues.
In addition to the above three taboos, it is also necessary to pay attention to the planting density and irrigation of green onions. When planting, it is necessary to determine the planting density according to the fertility of the soil and the variety of the onion to ensure that the onion has enough nutrients and growth space. At the same time, it is also necessary to determine the irrigation time and amount according to the climate and soil moisture to avoid over-irrigation or insufficient irrigation that will lead to stunted growth or deterioration of the quality of onions.
In short, the above three taboos need to be avoided when planting onions, and attention should be paid to the appropriate amount of fertilization, pest control, reasonable dense planting and irrigation. Only by mastering these points can we better grow healthy, high-quality green onions.