Pinellia ternata juice can control citrus pests
Cut up 1 kg of fresh Pinellia ternata, grind it with 3 kg of water, spray oranges after adding 30-40 kg of water per 1 kg of powder, or cut 1 kg of Pinellia ternata, add 5 kg of water and boil for 2 hours, then dilute the original solution 20-30 times after filtration. The control effect on citrus scales, red spiders and aphids is more than 98%.
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Cultivation techniques of grafted seedlings of Schisandra chinensis
Schisandra chinensis is a wild fruit tree distributed in northeast China. Its fruit can be used not only in medicine, but also in wine and juice production. It is a multi-functional and multi-purpose wild economic plant with high development and utilization value and broad application prospects. Since the 1990s, in view of the continuous decrease of wild Schisandra chinensis resources and the increasing market demand, our institute has carried out the research on home planting high yield technology and new variety breeding. In this paper, the high yield cultivation techniques of home planting with artificial garden, shaping and pruning, soil management, pest control and other main contents were summarized, and the new ones were selected.
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What should be paid attention to when artificial pollination of Gastrodia elata
① must pay attention to the time of pollen maturation. Artificial pollination can only be carried out when pollen is mature, and artificial pollination can never be carried out without mature pollen. ② can use a large needle to pick out the pollen, but do not pierce the ovary at the bottom of the flower. ③ must use cross-pollination, especially different varieties of flowers, so that the seeds have strong vitality, high reproduction coefficient, strong disease resistance and cold resistance of offspring. When ④ has mucus on the pistil stigma, artificial pollination is the most suitable. Pollen thrown on the stigma
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