Summer chestnut mo forget tube
2018-07-11 22:01:06
From July to August, the fruit development of chestnuts is in an expanding stage. It is very important to obtain good quality and high yield chestnuts in a timely manner by doing good topdressing, weeding, pest control and summer pruning. Fertilizing, weeding and applying strong fruit fertilizer are the second top dressings for chestnut trees. In early July, 15 kg of standard nitrogen fertilizer, 15-20 kg of phosphate fertilizer, 10 kg of potassium sulfate, or 40-50 kg of special fertilizer for fruit trees will be applied per acre. In addition, phosphorus and potassium fertilizers have a significant effect on the development of chestnut fruit, which can be combined with summer planing, cultivating 100 kg of plant ash, and eradicating weeds. Prevention and treatment of pests in early July, can be sprayed 1.8% avermectin biologics 1500 times to control chestnut large chestnut, chestnut spider mites, 50% phoxim 1000 times to control the big bag moth, 2.5% enemy killed 2500 times Prevention of chestnut bees. In the case of powdery mildew and branch blight, the chestnut plant can be sprayed with 50% thiophanate-methyl 1000-fold solution. In late August, 50% phoxim 1000-1500 times, 500-1000 times of Bacillus thuringiensis WP, or 1000-2000 times of 5% SYP can be sprayed on the canopy to prevent and control peach aphid. Topping the branches to the initial result tree should be carried out 1-2 times according to the growth of the branches, in order to delay the relocation of the crown. The pruned shoots generally form 2-3 mother shoots. Take care to remove the dense and delicate baby branches in a semi-lignified or lignified place, which is conducive to the formation of more female flowers in the second year.
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