Cherry Tree Soil Testing and Fertilizing Technology
1. Requirements for Fertilizer: Saplings below 3 years of age should be dominated by nitrogen fertilizers to assist the appropriate amount of phosphate fertilizer. 3 to 6 years old and early fruit saplings, in the fertilization should pay attention to nitrogen, phosphorus, potassium. Trees above the age of 7 years enter the full fruit period and need to increase nitrogen, phosphorus and potassium. The supplement of potassium fertilizer in the fruit growth stage can increase the yield and quality of the fruit. In the process of growth and development, due to the short growth period of the cherry tree fruit, it has the characteristics of rapid and concentrated fertilizer application. From leafing, flowering, fruit development to maturity, all are concentrated from April to June, while flower bud differentiation is also concentrated in a short period after harvest. Therefore, we should pay attention to two key periods of fertilization in autumn and top dressing in spring.
2. Fertilization technology: Under the medium fertility level, the annual fertility rate will be 2500-3000 kg of organic fertilizer (or 350-400 kg of organic fertilizer), 13-15 kg of nitrogen fertilizer, 5-7 kg of phosphate fertilizer, and 7-9 potassium fertilizer. kilogram. Organic fertilizer is used as base fertilizer, nitrogen and potassium base fertilizer and secondary topdressing, all base fertilizer application of phosphate fertilizer, chemical fertilizer and farmyard fertilizer (or commodity organic fertilizer) are mixed and applied. Basal fertilizer: Basal fertilizer is dominated by organic fertilizer, with suitable quantified fertilizer. General Mushi farmyard fertilizer 2500-3000 kg or commodity organic fertilizer 350-400 kg, urea 5 kg, 11-15 kg of ammonium phosphate, potassium sulfate 4-5 kg. Top dressing: dressing during flowering: Mushi urea 11-12 kg, potassium sulfate 6-8 kg. Berry enlargement fertilizer: Mushi urea 8-9 kg, potassium sulfate 4-5 kg. Fertilizers outside the roots: 4-5 times a year, generally 2 times in the early stage of growth, dominated by nitrogen fertilizer, 2-3 times in the later period, mainly phosphorus and potash fertilizers, spraying 0.3%-0.5% urea on the foliage, 0.2%- 0.3% potassium dihydrogen phosphate, 0.1%-0.3% borax. City Soil and Fertilizer Station Feed
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