One, due to fertilization Enthusiasm: such as rapeseed, wheat, due to harvest early, there is ample time for leisure sunburn, should apply more water containing pig manure, cow dung and other cold fertilizer. Cold glutinous: If cabbage, potato, due to harvest late, it is appropriate to use sheep manure, horse dung and other hot fertilizer. Soft pupa: If soybeans and other gargles are used, the soil is relatively moist and soft, leaving more nitrogen. It is recommended to apply more fertilizers containing phosphorus and potassium. Second, due to crop fertilization Because leguminous crops have rhizobia, they can fix nitrogen in the air by nitrogen fixation, so less nitrogen is needed and more phosphorus is needed. Therefore, consider applying less nitrogen fertilizer when fertilizing. Gramineous crops need more phosphorus and potassium in addition to more nitrogen. When fertilizing, we should pay attention to the reasonable combination of nitrogen, phosphorus and potassium. Leafy crops require more nitrogen, and fertilization should be dominated by nitrogen fertilizers. Third, due to soil fertilization Different soil types have great differences in fertilizer retention and fertilizer supply. The texture is heavy and the ground temperature is low. Pay attention to fertilization at the seedling stage. Sandy soil, due to poor fertility, the amount of fertilizer should not be too large, it should be divided up. Fourth, due to the weather fertilization Weather conditions affect the growth of crop roots and the absorption of nutrients, but also affect the state of nutrients in the soil. Therefore, fertilization in the cold season should be appropriately advanced as needed. High-temperature fertilization should prevent fertilizer effects from being exerted, and fertilization in the rain should prevent the loss of fertilizers. Fruits And Vegetables,Fresh Fruits And Vegetables,Fresh Fruit And Veggies,Fresh Vegetables Xi'an Gawen Biotechnology Co., Ltd , https://www.agolyn-bio.com