Early base fertilizer
Because the budding and flowering of big cherry is stored by the tree, the basal fertilizer plays a decisive role in the growth and development of the tree. Early application of basal fertilizer can exert fertility in that year and increase nutrient reserve before winter. Because in September, the peak value of the cherry root growth is conducive to the absorption of nutrients, and at the same time, the roots can be well restored, which is conducive to multiple new roots. At this time fertilization is mainly applied farmland manure, phosphate fertilizer and appropriate amount of nitrogen fertilizer. The saplings are deep in the canopy projections, and the fruit trees combine with the entire garden. Farmyard fertilizers must be fully decomposed before they are applied to prevent burns. The amount of basal fertilizer accounts for about 70% of the annual fertilization amount. The saplings in the period of crown expansion generally have 30 to 50 kilograms of excrement per person or 5 to 8 kilograms of pure chicken manure. To promote the early formation of the canopy, 150 grams of nitrogen fertilizer may be applied to each plant; Human feces and urine 60 to 80 kilograms or 20 to 30 kilograms of pure chicken manure; early fruit trees can be added in an appropriate amount of compound fertilizer, to control nitrogen, phosphorus, potassium. Early application of basal fertilizer also benefits the decomposition of organic fertilizers and the release of nutrients.
Do a good job of preventing and controlling pests and diseases
Although the active prevention and control of the previous period has brought effective control of pests and diseases, it does not mean that it is completely eliminated. September even more rainy weather, bacteria spread easily. At this time, it is necessary to pay attention to rotation of drugs for the prevention and control of pests and diseases. On the one hand, it is to eliminate or alleviate the resistance of bacteria and insects to drugs, and on the other hand, to reduce the residue of certain pesticides.
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