"Monthly Fertilizer" is to make up for it and make up for it, but don't hurt it! The application of organic fertilizers or shallow application of fertilizers may increase the amount of fertilizers. It is difficult for apple roots to squat, and organic fertilizers are poorly rotted, causing problems such as diseases and insect pests.
On the one hand, excessive application of organic fertilizers will cause ammonia volatilization and nitrate leaching, which will cause increased groundwater nitrate content, resulting in water pollution; on the other hand, fresh and uncomfortable organic fertilizer will increase the denitrification trend of the soil, increase Nitrous oxide emissions. In addition, excessive application of manure can also cause the accumulation of heavy metals in the soil. Excessive application of chemical fertilizers can also cause soil contamination. In particular, nitrogen fertilizers will introduce water to cause an increase in nitrate content, and at the same time increase the amount of nitrous oxide in the atmosphere. Therefore, the key to applying "monthly sub-fertilizer" to apple trees is scientific and rational fertilization and tree management. Http://Content/24ebb9f3-1c11-4234-977c-dc19c1d37f1a?cType=2
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