Three points of postharvest management of Chinese chestnut

1. Deep soil preparation, improve soil permeability, but also turn the surface pests to the depths and suffocate to reduce diseases and insect pests. Promote the induction of new roots and strengthen the root function. When ploughing deeply, be careful not to dig up the tree roots. While turning the soil, it is necessary to do a good job in soil and water conservation facilities to prevent soil erosion in the rainy season.

two。 Apply sufficient base fertilizer, base fertilizer is generally applied from late September to early October, digging ring ditches along the periphery of the crown to fertilize, mainly mature organic fertilizer, combined with nitrogen, phosphorus and potassium fertilizer balanced application. Generally, 15-20 kg per adult tree, combined with photosynthetic nutrient film fertilizer, can help chestnut trees absorb light energy, improve fertilizer efficiency, facilitate root absorption and restore tree potential as soon as possible.

3. Shaping and pruning mainly removes sprouting and disorderly branches at the base, lower branches and overlapping branches, overdense branches, dead branches, dead branches, disease and insect branches, etc., so as to promote good ventilation and light transmission of the crown and reduce the damage of diseases. The trimming mouth should be smeared with healing anticorrosive film in time to protect the wound from healing quickly and prevent bacterial infection.