Citrus, orange, and pomelo
1. Winter Fertilizer: Early-maturing varieties are applied in the fruit-harvesting and late-maturing varieties in the fruit-harvesting period, and the late-maturing varieties are applied 7-10 days before fruit picking, accounting for 30% of the annual fertilization amount. Combine the winter pruning garden, and cut off the pests and leaves, rootstocks, fruit stalks, stiff fruit, long branches, and old autumn and winter shoots, and remove ground weeds, fallen leaves, etc., and open the rings inside and outside the canopy of fruit trees. The gullies are buried together. Plant Shiyan mud, garbage turf 100 kg, weed 10 kg, green fertilizer 10 kg, pig cow dung 10 kg, lime 1-3 kg, bran 2 kg, calcium magnesium phosphate 1 kg.
2, spring fertilizer: before the spring buds sprouting (from the spring to the rain, Shatian pomelo, orange in the spring), accounting for 20% of the annual fertilization. The plant applies 0.2-0.25 kg of urea, 0.5 kg of decomposed bran, and 10-40 kg of human urine.
3, stable fruit fertilizer: after the first physiological fruit drop. The results are small, the fruit trees in the early years, and the trees with strong trees can be applied less or not. The plant applied 0.1 kg of urea, 0.25 kg of superphosphate, and 0.2 kg of potassium sulfate.
4, attacking strong fruit fertilizer: July-September (small summer to the heat of the shoot fertilizer, Liqiu to the summer to apply a strong fruit fertilizer) for early maturity varieties or results, trees weak, old trees can be applied early, More than one. The saplings should be applied thinly, and the new shoots should be drenched every 10 days before and after germination. After the autumn shoots are ripe, they can be leached once a month. The two-year-old tree is also applied once a month. The tapping and strong fruit fertilizer plant applies 0.25-0.3 kg of urea, 0.5 kg of superphosphate, 0.3 kg of potassium sulfate, 0.5-1 kg of decomposed bran, and 10-20 kg of human urine.
5, picking fruit fertilizer: must be applied in a timely manner. The plant applies urea 0.2-0.25 kg, human urine manure or bran fertilizer water 20-40 kg.
Second, the foliar spray is 7-8 times a year, which can be used for tuberculosis pest control.
1. Spring shoots germination to 1-2 times before flowering: 0.2 kg urea + 0.2 kg potassium dihydrogen phosphate + 0.05 kg borax + 50 kg water once; 10 g planting treasure tree + 45 kg water once.
2, 5, 15 and 25 days after Xie Hua, each time: Shatian Pomelo Xiehua 5 days after spraying potassium dihydrogen phosphate 0.2 kg + water 50 kg once, the first 15 days, 25 days each spray phytochemical 10 g + 45 kg of water or 1 g of anti-fallin (dissolved first) + 0.2 kg of potassium dihydrogen phosphate + 50 kg of water, and kumquats are sprayed in time on the 5th day after each flowering. These three sprays are good at 4 o'clock on a cloudy or sunny day.
3. Each time before and after the autumn shoots are sprayed: 10 g of water is sprayed with 45 g of water or 0.2 kg of urea + 0.2 kg of potassium dihydrogen phosphate + 50 kg of water.
4. Once the fruit is harvested: spray 10 g of water to 45 kg or 8-10 PPM2, 4-D+0.3% urea + 0.3% potassium dihydrogen phosphate, which is beneficial to restore the tree, the winter leaves and the flower bud differentiation.
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