First, the varieties should be "excellent" To choose a large, good coloring, color brilliant, sweet flavor, no cracking, self-cultivation, flowering tolerance of low temperature, high fruit set rate of the fine varieties, such as CNPC 5, Yan Guang, Lichun, Oriental Red, sweet oil No. 1, 626, Yidong No. 1 and so on.
Second, nursery should be "early" In the past, the peach farmer generally arrived in early March or mid-March, only to raise seedlings in small arches, planted in early May, and began to control in July. Practice has proved that the peach trees cannot grow and the branches cannot fill the space, failing to achieve the goal of high yield. We advanced the nursery time to mid-February, using a small baghouse for nutrition bags to nurse seedlings and cover the cold curtains at night to obtain good results. Peach seedlings are 50-60 cm in height, and the first topping is performed from the functional leaves, that is, the first time it is dried (after planting into the field, the second and third drying are also required) to promote the results of the first layer. Lateral branches, when the adjacent branches of two peach seedlings are about to be trussed, the nutrition bag must be rearranged. The spacing of rows of peach seedlings is increased from the original 20 cm to 30 cm, so that the lateral branches grow to have a certain space, so that the peach trees The first layer results in lateral branches formed in small arches.
Third, the previous period should be "promoted" After the night cream, peach seedlings will be planted in Daejeon and the greenhouse will be built in the autumn. In the early stage of management, we must highlight a word that promotes the management of fertilizers and water to promote the formation of an ideal canopy and lay the foundation for the next year. Each fertilizer should be watered once in late May, mid-June, and early July. For the first time, 50 grams of urea should be applied to the first crop, 50 grams of urea should be recovered from the second crop, and 100 grams of ternary compound fertilizer should be added. The chase chased 300 yuan of compound fertilizer and watered it after top dressing. At the same time, spray 0.3% potassium dihydrogen phosphate every 10-15 days.
Fourth, later to "control" on July 15 spray 15% paclobutrazol 200-300 times (administrative poor can be appropriate late spray) after spraying every 15 days, the same concentration before, even spray 3 times, the first time The plants were sprayed and sprayed for the second time at the growing point, and the whole plant was sprayed for the third time. If the observation is done 10 days after the last spray (ie August 25th), the tree potential is still not controlled and a booster can be sprayed, which means that the dose of paclobutrazol is doubled.
Fifth, dormancy should be "foot" to force peach to sleep in advance, generally peach dormancy must pass 0 °C -7.2 °C low temperature 450 hours, individual varieties need 1200 hours in order to normal budding, flowering, results. Forced sleep is performed when the nighttime temperature is stable below 0°C and 10°C. 10 days before dormancy do a good job of fertilization (Mushi fully decomposed organic fertilizer 3,000 kg, after the application of iron clams with a shallow turn 10 cm), watering, mulching, scorpion leaves and other work, and then greenhouse covered with PVC non-drip greenhouse film , And cover straw. The uncovering of the straw curtain is the opposite of the normal protection cultivation. That is, opening the ventilation vent of the greenhouse at night, allowing the cold air to enter the shed, cooling it, closing the ventilation openings during the day, and closing the grass curtains to try to keep the night temperature low. Monthly release of dormancy. In the middle of a month in the shed, if the temperature is high for several days and the night temperature reaches 10°C or more, the sleeping time should be extended for several more days to make the peach tree sleep more.
Sixth, warming should be "slow" After the dormancy is lifted, it begins to warm up and germinate. Generally it takes about 40 days to warm up gradually. If the temperature rises too fast, the phenomenon of flowering after the first leaves is likely to occur, resulting in a decrease in the fruit setting rate. The first 10 days, daytime control at 13°C-15°C, nighttime 2°C-4°C; second 10 days, daytime 16°C-19°C, nighttime 3°C-5°C; third 10 days, daytime 18 °C - 20 °C, night 4 °C - 6 °C; the fourth 10 days, during the day 20 °C -22 °C, night 5 °C - 7 °C.
VII. Nutrition should be “full.†Nitrogen should be the main fruit in the young fruit period, and urea and ternary compound fertilizer should be collected in 125 grams per plant. Phosphate fertilizer should be the main fruit in the fruit enlargement period. Each plant should be followed by urea, diammonium phosphate and 150 grams of potassium sulfate. The ratio of phosphorus to potassium is 10:3 to 4:13-16. Fertilizer after watering. In addition, from the young fruit stage to fruit enlargement period, foliar fertilizers such as boric acid or borax, zinc sulfate, manganese hydride, ammonium molybdate, and ferrous sulfate may be alternately sprayed. Solar greenhouse nectarine planting buds in the spring, the results can be achieved in the following year, but often there is no phenomenon of high yield in the following year. After several years of production practice and scientific experiments, we have explored the “Seven-character Classics†for the cultivation of high-yield crops in the following year. The average yield per mu is 3,500 kg, and the yield per mu can reach 20,000-30,000 yuan.
First, the varieties should be "excellent" To choose a large, good coloring, color brilliant, sweet flavor, no cracking, self-cultivation, flowering tolerance of low temperature, high fruit set rate of the fine varieties, such as CNPC 5, Yan Guang, Lichun, Oriental Red, sweet oil No. 1, 626, Yidong No. 1 and so on.
Second, nursery should be "early" In the past, the peach farmer generally arrived in early March or mid-March, only to raise seedlings in small arches, planted in early May, and began to control in July. Practice has proved that the peach trees cannot grow and the branches cannot fill the space, failing to achieve the goal of high yield. We advanced the nursery time to mid-February, using a small baghouse for nutrition bags to nurse seedlings and cover the cold curtains at night to obtain good results. Peach seedlings are 50-60 cm in height, and the first topping is performed from the functional leaves, that is, the first time it is dried (after planting into the field, the second and third drying are also required) to promote the results of the first layer. Lateral branches, when the adjacent branches of two peach seedlings are about to be trussed, the nutrition bag must be rearranged. The spacing of rows of peach seedlings is increased from the original 20 cm to 30 cm, so that the lateral branches grow to have a certain space, so that the peach trees The first layer results in lateral branches formed in small arches.
Third, the previous period should be "promoted" After the night cream, peach seedlings will be planted in Daejeon and the greenhouse will be built in the autumn. In the early stage of management, we must highlight a word that promotes the management of fertilizers and water to promote the formation of an ideal canopy and lay the foundation for the next year. Each fertilizer should be watered once in late May, mid-June, and early July. For the first time, 50 grams of urea should be applied to the first crop, 50 grams of urea should be recovered from the second crop, and 100 grams of ternary compound fertilizer should be added. The chase chased 300 yuan of compound fertilizer and watered it after top dressing. At the same time, spray 0.3% potassium dihydrogen phosphate every 10-15 days.
Fourth, later to "control" on July 15 spray 15% paclobutrazol 200-300 times (administrative poor can be appropriate late spray) after spraying every 15 days, the same concentration before, even spray 3 times, the first time The plants were sprayed and sprayed for the second time at the growing point, and the whole plant was sprayed for the third time. If the observation is done 10 days after the last spray (ie August 25th), the tree potential is still not controlled and a booster can be sprayed, which means that the dose of paclobutrazol is doubled.
Fifth, dormancy should be "foot" to force peach to sleep in advance, generally peach dormancy must pass 0 °C -7.2 °C low temperature 450 hours, individual varieties need 1200 hours in order to normal budding, flowering, results. Forced sleep is performed when the nighttime temperature is stable below 0°C and 10°C. 10 days before dormancy do a good job of fertilization (Mushi fully decomposed organic fertilizer 3,000 kg, after the application of iron clams with a shallow turn 10 cm), watering, mulching, scorpion leaves and other work, and then greenhouse covered with PVC non-drip greenhouse film , And cover straw. The uncovering of the straw curtain is the opposite of the normal protection cultivation. That is, opening the ventilation vent of the greenhouse at night, allowing the cold air to enter the shed, cooling it, closing the ventilation openings during the day, and closing the grass curtains to try to keep the night temperature low. Monthly release of dormancy. In the middle of a month in the shed, if the temperature is high for several days and the night temperature reaches 10°C or more, the sleeping time should be extended for several more days to make the peach tree sleep more.
Sixth, warming should be "slow" After the dormancy is lifted, it begins to warm up and germinate. Generally it takes about 40 days to warm up gradually. If the temperature rises too fast, the phenomenon of flowering after the first leaves is likely to occur, resulting in a decrease in the fruit setting rate. The first 10 days, daytime control at 13°C-15°C, nighttime 2°C-4°C; second 10 days, daytime 16°C-19°C, nighttime 3°C-5°C; third 10 days, daytime 18 °C - 20 °C, night 4 °C - 6 °C; the fourth 10 days, during the day 20 °C -22 °C, night 5 °C - 7 °C.
VII. Nutrition should be “full.†Nitrogen should be the main fruit in the young fruit period, and urea and ternary compound fertilizer should be collected in 125 grams per plant. Phosphate fertilizer should be the main fruit in the fruit enlargement period. Each plant should be followed by urea, diammonium phosphate and 150 grams of potassium sulfate. The ratio of phosphorus to potassium is 10:3 to 4:13-16. Fertilizer after watering. In addition, from the young fruit stage to fruit enlargement period, foliar fertilizers such as boric acid or borax, zinc sulfate, manganese hydride, ammonium molybdate, and ferrous sulfate may be alternately sprayed.
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