Overweight fertilizer, ignoring potash and organic fertilizer For many years, the majority of fruit growers have been applying fertilizer to fruit trees in apple production, neglecting the application of potash fertilizer and organic fertilizer, resulting in excessive waste of nitrogen fertilizer, massive deposition of phosphorus, and severe soil compaction. Caused the imbalance of growth and development of fruit trees, and the uncontrolled control of pests and diseases caused apple production to keep rising and quality decline.
Schiff base and top dressing are not suitable when the apple tree needs different nutrients at different growth stages. As far as the Weibei Dryland Fruit Area is concerned, there is more rain in the autumn and good sensation. Before and after the harvest, the apples can be used as base fertilizers, and many fruit growers also use the basal fertilizer in the second year of the spring, but there is no good autumn. The temperature of basal fertilizer applied in autumn is good, soil moisture is good, it is conducive to fertilizer decomposition and root absorption, and it can provide nutrients to trees in a timely manner. The basal fertilizer applied in spring has high temperature, soil moisture is not good, and it is difficult to ferment the tree body. Absorption, to some extent caused a waste. Top dressing is applied during the fruit enlargement period. Premature nutrition is easy to lose, too late to meet the needs of tree growth. Potash fertilizer is applied during the fruit enlargement period, and the fruit surface has good luster, bright color, and rich and fragrant meat. If it is applied at the flowering stage, the effect is not obvious.
Relying on foliar fertilizer, not paying attention to basal fertilizer and top-dressing fertilizer. Most of the foliar fertilizers sold on the market are plant regulators. The majority of fruit growers sprayed on fruit trees immediately. Therefore, some fruit growers do not apply top dressing with top dressing, and individual fruit growers do not apply top dressing with fertilizer. They rely too much on foliar fertilizer. In fact, more than 90% of the plant's nutrition comes from the soil, and leaf absorption is the supplement of trace elements.
Do not understand the nature of chemical fertilizers, chaos with unfamed human waste can not be mixed with alkaline fertilizers such as grass ash, calcium, magnesium, phosphate fertilizer; unripened chicken waste can not be directly applied to the fields, prone to insects and pollute the environment. Improper collocation may reduce fertilizer efficiency or cause fertilizer failure.
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