Cultivation method for making ginkgo leaf color change in advance
A cultivation method and technique for ginkgo leaves are applied in the field of cultivation for making ginkgo leaves change color in advance, can solve the problems of premature leaf senescence, poor resistance, defoliation and the like, and achieve the effects of good popularization feasibility and easy operation.
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[0017] A cultivation method for changing the color of ginkgo leaves in advance: specifically, selecting healthy ginkgo plants with a DBH of 8-15 cm without excavating planting holes, and using a ratio of "25-30% yellow sand + 20-30% barnyard manure + 20-30 % topsoil + 20-30% decomposed straw + 0.03-0.05% cross-linked polyacrylamide" substrate, and use cone-shaped mound soil to plant ginkgo trees with a row spacing of 3.5-4.5 m × 3.5-5.5 m.
[0018] At the beginning of March every year, apply 150-300 g of urea to multiple points on each plant to cultivate healthy leaves. In mid-September, in case of rainfall, use plastic sheeting and other rain shelters to reduce the water content of the above substrate to 18-26%, and apply drought stress for 15 days to accelerate the degradation of chlorophyll. Ginkgo leaves can be advanced to October 1st When it turns yellow, the viewing period of its yellow leaves can be advanced to the beginning of October.
[0019] The substrate formula u...
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