Pre-emergence fertilizer management
Fertilization is mainly based on organic fertilizer, supplemented by chemical fertilizers, and promotes formula fertilization technology, focusing on the application of multi-element fertilizers such as fruit tree special fertilizer, micro-fertilizer and plant growth regulator on fruit trees. For the autumn, the orchard should not be applied in the spring, the depth of the canopy is 40-60 cm, and the depth of the sand orchard is 60-80 cm. The best part is the circle fertilizer, cake fertilizer, green manure and crop straw.
In the early fruiting period, the saplings apply 2 cubic meters of organic fertilizer per acre, and the large trees in the fruiting period apply 2-4 cubic meters of organic fertilizer per acre, which is the standard for the pounding of the fruit or the weight of the fruit. At the same time, the quick-acting fertilizer should be applied. The formula fertilization can be applied once before or after the flowering, and should be the best part 1 m away from the base of the trunk. The standard of formula fertilization is: 0.5 kg of pure nitrogen per plant, 0.5 kg of phosphorus, 0.5 kg of potassium, 0.1 kg of zinc sulfate, 0.1 kg of ferrous sulfate, and 2 kg of urea in the fruit growing period. 3 kg of ammonium, 2 kg of potassium chloride, 0.5 kg of zinc sulfate, and 0.5 kg of ferrous sulfate. Watering after spraying on the ground.
Pest Control
1. Artificial control. Scrap off the rough skin, wrinkle the skin, cut off the branches of the disease, remove the litter under the tree, drop the fruit, weeds, concentrate deep or burn.
2. Chemical control. 1 The inflorescence separation period is the hatching period of the larvae of P. sylvestris. At this time, the larvae in the base of the flower stalk or the scales are squirted, and the spray of 3 waves of sulphur sulphur mixture has a greater lethal effect on the newly hatched larvae of P. sinensis, and simultaneously treats the black star. Disease, ring disease. 2 When the flower is 70%, spray 80% carbendazim 2000 times solution + 5% avermectin 8000 times solution + chlorpyrifos 1500 times solution to prevent pear hibiscus, pear stem bee, red spider, black star disease, black spot disease. New varieties such as yellow-crowned pears, golden pears, and emerald pears are sprayed with calcium fertilizer after spraying.
Flower management
1. Thinning flowers. If the number of branches exceeds 50% of the total branches, the flower should be carried out, usually before the inflorescence is separated from the flowering. It should be sooner rather than later. When the amount of flowers is large, the flower buds on the whole inflorescence can be separated. The inflorescence distance is 25 cm for pears, 30 cm for Sydney, and 25 cm for yellow-crowned pears.
2. Pollination. 1 spraying flower period 350-400 times liquid borax + 400 times liquid urea solution can increase the fruit setting rate. 2 Orchard puts bee pollination. Put 1 box of bees per acre of pear gardens and place them in the middle of the pear garden 2-3 days before flowering. It is forbidden to spray pesticides before the flowering of the orchard with bee pollination to avoid killing the bees.
Fertilization is mainly based on organic fertilizer, supplemented by chemical fertilizers, and promotes formula fertilization technology, focusing on the application of multi-element fertilizers such as fruit tree special fertilizer, micro-fertilizer and plant growth regulator on fruit trees. For the autumn, the orchard should not be applied in the spring, the depth of the canopy is 40-60 cm, and the depth of the sand orchard is 60-80 cm. The best part is the circle fertilizer, cake fertilizer, green manure and crop straw.
In the early fruiting period, the saplings apply 2 cubic meters of organic fertilizer per acre, and the large trees in the fruiting period apply 2-4 cubic meters of organic fertilizer per acre, which is the standard for the pounding of the fruit or the weight of the fruit. At the same time, the quick-acting fertilizer should be applied. The formula fertilization can be applied once before or after the flowering, and should be the best part 1 m away from the base of the trunk. The standard of formula fertilization is: 0.5 kg of pure nitrogen per plant, 0.5 kg of phosphorus, 0.5 kg of potassium, 0.1 kg of zinc sulfate, 0.1 kg of ferrous sulfate, and 2 kg of urea in the fruit growing period. 3 kg of ammonium, 2 kg of potassium chloride, 0.5 kg of zinc sulfate, and 0.5 kg of ferrous sulfate. Watering after spraying on the ground.
Pest Control
1. Artificial control. Scrap off the rough skin, wrinkle the skin, cut off the branches of the disease, remove the litter under the tree, drop the fruit, weeds, concentrate deep or burn.
2. Chemical control. 1 The inflorescence separation period is the hatching period of the larvae of P. sylvestris. At this time, the larvae in the base of the flower stalk or the scales are squirted, and the spray of 3 waves of sulphur sulphur mixture has a greater lethal effect on the newly hatched larvae of P. sinensis, and simultaneously treats the black star. Disease, ring disease. 2 When the flower is 70%, spray 80% carbendazim 2000 times solution + 5% avermectin 8000 times solution + chlorpyrifos 1500 times solution to prevent pear hibiscus, pear stem bee, red spider, black star disease, black spot disease. New varieties such as yellow-crowned pears, golden pears, and emerald pears are sprayed with calcium fertilizer after spraying.
Flower management
1. Thinning flowers. If the number of branches exceeds 50% of the total branches, the flower should be carried out, usually before the inflorescence is separated from the flowering. It should be sooner rather than later. When the amount of flowers is large, the flower buds on the whole inflorescence can be separated. The inflorescence distance is 25 cm for pears, 30 cm for Sydney, and 25 cm for yellow-crowned pears.
2. Pollination. 1 spraying flower period 350-400 times liquid borax + 400 times liquid urea solution can increase the fruit setting rate. 2 Orchard puts bee pollination. Put 1 box of bees per acre of pear gardens and place them in the middle of the pear garden 2-3 days before flowering. It is forbidden to spray pesticides before the flowering of the orchard with bee pollination to avoid killing the bees.
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