How fertilization of walnut trees improve to get high quality?

In recent years, the market price of walnut increase in successive years is bullish prompted walnut planting wind up water. In addition to these big fat NPK, whether need to exert ferrous sulfate, magnesium sulfate, manganese sulfate in such trace fertilizer? How to make high quality and high yield of fruit trees fertilization?

1 ~ 2 years young trees: in order to let the young trees early results, high and stable yield, plant nitrogen 0.1 KG, other phosphorus potassium according to the content of soil fertilizer appropriately. Adult tree: mainly basal, fertilizer and foliar fertilizer. After harvest to the front of the fallen leaves, can be basal fym strains from 150 to 250 kg, 1.5 ~ 2.5 kg phosphate fertilizer ash fat 2.5 5 kg, 2 ~ 3 times a year.

Before flowering, young fruit enlargement and fruit hardcore period, every time can only ShiRuiQi chemical only 0.3% ~ 0.4% of copper sulfate.In flowering, new tip speed, bud differentiation stage and recovery after for a long time, can for spraying on the leaf, the commonly used types of spray fertilizer 600 ~ 1000 times for the magnesium sulfate, copper sulfate, zinc sulfate, manganese sulfate ~ 300