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What should be sprayed on apple trees that drop flowers and fruit to increase the fruit-setting rate?
During the growth of fruit trees, the phenomenon of flower and fruit drop occurs from time to time, which reduces the yield of the fruit trees and greatly reduces the income of the fruit growers. So what should be done about apple flower and fruit drop? What should be sprayed? How can the fruit-setting rate be increased? What should be done about apple flower and fruit drop? 1.
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Management Methods for Winter Jujube Seedlings During the Dormant Period, Plus Tips to Increase Fruit Set Rate
Every autumn and winter season, plenty of people eat winter jujubes, and the price of winter jujubes gets more expensive year after year. Nowadays, more and more people are growing winter jujubes. Regarding the management of winter jujube seedlings during the dormant period and the issue of increasing the fruit set rate, we have also summarized this article for everyone.
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How much is eggplant per jin now? Grow it this way to increase the fruit-setting rate
Eggplant, also known as dwarf melon and purple eggplant, is a common vegetable in China. Because it can be eaten in many ways and has high nutritional value, it is widely planted. It is sold in markets now, and the price is affordable. So how much is eggplant per jin now? How can you grow it to increase the fruit-setting rate? 1
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How should you use treatments during the grape flowering period to improve the fruit set rate?
During the grape flowering period, gibberellin can be sprayed. At full bloom, dipping the flower clusters in a 25-40 ug/g gibberellin solution or spraying them can improve the fruit set rate and also cause the fruit to mature 15 days earlier. Gibberellin is a plant hormone that can act on cotton, grapes, vegetables, rice,
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Reasons for Low Fruit Set in Muskmelon and Methods to Improve It
I. Reasons Why Plants Are Prone to Poor Fruit Set 1. Excessive vegetative growth or weak, spindly plants. During the growing period of muskmelon, applying too much nitrogen fertilizer or cultivating in a protected environment with high temperature and high humidity and poor ventilation prevents vegetative growth and reproductive growth from being coordinated, often resulting in excessive vegetative growth or weak, spindly plants.
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Detailed Prevention and Control Methods for Low Fruit Set Rate in Jujube Trees
1. Pay attention to shaping and pruning. Because the bud types and growth and fruiting habits of jujube trees differ from those of other fruit trees, they are not sensitive to pruning responses. Therefore, pruning must follow the tree's natural tendency and shape the tree according to the branches, and pruning should be light. Winter pruning and summer pruning should be combined so that the main branches are reasonably distributed with clear layers. Select
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What to Do About Low Fruit Set in Plums? Cause Analysis and Methods to Improve It
1. Regulating tree vigor For excessively vigorous trees, promptly remove buds and prune upright branches, and promptly open up the branch angles; alternatively, in autumn or spring apply 3-5 g of 15% paclobutrazol per tree, or spray 150-200 times diluted paclobutrazol or PBO after petal fall. For trees that are too weak, apply base fertilizer after harvest, and promptly apply topdressing and foliar fertilizer during the growing season.
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How can the boll-setting rate be increased in cotton cultivation?
Types of square and boll shedding in cotton include physiological shedding, shedding caused by pests and diseases, and shedding caused by mechanical damage. As for the causes of physiological shedding: first, excessive application of fertilizer and water causes excessive vegetative growth, with nutrients consumed too heavily in the early stage and supply falling short of demand in the later stage; second, excessive planting density in the cotton field causes severe shading by branches and leaves, reducing light, weakening photosynthesis, and decreasing the nutrients produced; third, some cotton fields are deficient in boron, causing cotton to flower but not set fruit; fourth, high temperature and drought, insufficient fertilizer and water, or excessively high temperatures cause cotton pollen sterility; fifth, frequent rainy weather leads to poor pollination. As for pest and disease damage, inadequate control of cotton mirids, cotton bollworms, Fusarium wilt and Verticillium wilt can easily lead to massive square and boll shedding. As for mechanical damage, it is mainly caused by improper operation during field management. In addition, in the past two years, blind application of herbicides has occasionally caused square and boll shedding.
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What are some practical methods to increase the fruit-setting rate of jujube trees?
For jujube trees to be high-yielding, fruit setting is the most critical. Management depends on technique; for fruit setting, find the patterns. The flowering period must be seized firmly, and the secrets must be kept firmly in mind. 1. Flowering period The flowering period of jujube trees is relatively long, generally 35 days, that is, from May 25 to June 30. The flowering period is divided into the early flowering stage, full flowering stage, and late flowering stage. Around June 8
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What are the key points of summer management techniques for jujube trees?
1. Increasing fruit set rate (1) Remove root suckers. Root suckers consume a large amount of nutrients, and any root suckers found should be dug out promptly. (2) Remove buds and pinch off tips. Control the sprouting of jujube heads; all new buds with no space in the inner canopy should be removed, leaving only a few jujube hanging fruiting shoots. (3) Girdling. When 30%-40% of the flowers have opened, trunk girdling can be carried out. The width of the girdle should be 1/10 of the trunk diameter. It should be done without damaging the xylem, and the girdle cut should have no ragged edges. After girdling, apply a 200-fold solution of carbendazim and seal it with clear adhesive tape. (4) After girdling, spray the plant with 2.5-3.5 kg of ice in the morning or afternoon. Alternatively, during the flowering period of jujube trees, spray 5 ppm of 2,4-D or 10 ppm of sodium naphthaleneacetate solution.
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