In the production of fruit trees, only the combination of organic fertilizer and inorganic fertilizer, combination of basal fertilizer and topdressing fertilizer, major elements, and reasonable supplements of trace elements, according to the characteristics of required fertilizer, soil nutrients and target yield at different growth stages of fruit trees. , Scientific application of trace element fertilizer can achieve high yield and quality.
grape
Before germination: In order to promote the sprouting of new roots, to germinate earlier, to prevent freezing damage in early spring, and to supplement zinc early, zinc oxide 1500 times solution may be sprayed.
Sprout to new shoot growth stage: To promote robust shoot growth and provide sufficient nutrients for flower bud differentiation, 1000-fold solution of sodium octaborate or potassium octaborate can be sprayed, and EDTA/EDDHA chelated iron 2000-3000 times solution can be sprayed. 2-3 times to prevent iron deficiency yellowing.
From flower bud stage to flowering stage: In order to promote robust development of buds, promote normal pollination and fertilization, reduce buds and falling flowers, spray 1000 times solution of sodium octaborate or potassium octaborate, and spray 1500 times of zinc oxide solution.
From flowering to ear formation: To reduce physiological fruit loss, increase fruit set rate, promote fruit enlargement, reduce size, spray 3000 times zinc oxide solution, and spray sugar alcohol to chelate 1000 times calcium solution.
Berries growth: spray sugar alcohol chelating 1000-1500 times calcium solution, in the berry expansion can promote fruit enlargement, sugar accumulation and peel coloring, prevent cracking, improve fruit hardness, prevent physiological defoliation; can promote the berry ripening period Fruit coloring, improve the quality of fruit, prevent yellow leaves, prevent early defoliation; 15 days before fruit picking, improve fruit coloring and tree nutrient accumulation, extend fruit storage period after fruit picking.
After harvest, Ji Shiqiu fertilizer: spray 2000-3000 times the solution of suspended zinc oxide solution, can add nutrients to the tree, restore tree vigor, lay the foundation for flower bud differentiation, flowering, fruit set in the coming year.
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