Apple managed to catch 5 points in May

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In May, Apple has begun to enter the expansion period, and the fruit tree has entered a prolonged period. The growth of spring has entered a long growing period. Therefore, nitrogen metabolism is still in a prosperous period. In the middle and late stages, the mature larvae of the small heartworm will break out of the ground, and the first generation of golden moths will also endanger. Therefore, the following management points should be mainly focused on:

1. Pay attention to calcium supplementation. Spraying 0.3% urea with sprayed leaves, the first peak of calcium absorption after apple blossoming and before bagging, is also the key period for apple tree calcium to prevent bitter disease. Generally, calcium should be supplemented 2-3 Times, about 10 days apart, can spray 800 times of calcium sulphate, Cui Kang calcium treasure, calcium nitrate and so on. Linyi Fertilizer Network Copyright
2. Timely fruit thinning. The amount of fruit left in the mu is 11,000-13,000, and the bag is 30-40 days after flowering. The bag is sprayed before DuPont Yibao 1200 times or the smashing 800 times + Jiato 1000 times + Wanling 3000 times + calcium fertilizer . Linyi Fertilizer Network Copyright
3. Do a good job of summer shears. To eliminate the extra erect branches on the back, the long branches of the scorpion and the peripheral competition branches, the young and the saplings should adopt various reversing techniques such as topping and twisting, taking branches, bending back, and hanging upside, and ring cutting, ring stripping, etc. A variety of carving techniques. Linyi Fertilizer Network Copyright
4. Interplanting and weeding. Tillage removes weeds, increases soil organic matter, enhances soil fertility, and deepens the tillage layer to promote root growth. Linyi Fertilizer Network Copyright
5. Pest control. The main prevention and control of the newly-excavated peach small heart aging larvae, scale insects, leaf miner and powdery mildew, etc., should focus on the prevention and control of the following two pests: (1) ground control peach small heartworm. Generally, in the middle and late May, when the peach larvae are about to be unearthed, spray 48% of the 500-800 times solution around the tree tray, spray the ground, then use the dish to slap the tree tray with the shovel. . (2) Prevention and control of scale insect nymphs. From late May to mid-June, when the nymphs of the scales begin to climb out of the hard shell, they will spray 800 times or 40% of the killing phosphorus 1000-1200 times. Linyi Fertilizer Network Copyright
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â–ª Standard:3A, DIN, SMS, BS, RTJ, ISO, IDF, DS, INCH, etc
â–ª Material: Stainless Steel 304 (1.4301), Stainless Steel 316L(1.4404) etc.
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