Reasons and control measures of bean corner flower
The phenomenon of falling flowers is often encountered in the production of beans, which affects the yield of beans. The reasons for the bean corner flower are as follows. The temperature at the seedling stage is lower than 10 °C for a long time, which causes the flower bud differentiation to be abnormal and causes the fruit to fall. The density is too high, the temperature is too high, the water and fertilizer are too large, and the seedlings are long, especially in the pupa. In the vine period, prematurely topdressing and watering, prone to longevity and causing falling flowers and fruit; drought, lack of water, insufficient light, especially encountered continuous low temperature, cloudy days will also cause poor flower bud differentiation, causing falling flowers and fruit; greenhouse gas concentration in the shed Insufficient caused by falling flowers and fruit; harvesting and falling fruit caused by not harvesting in time; falling flowers and fruit caused by pests and diseases.
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Control measures: Cultivate strong seedlings, strictly control temperature, humidity, light and fertilizer during seedling period; reasonable density, control seedling growth, plant growth is strong, internodes are too long, growth is weak, there are signs of 20 mg / kg when there are signs of length chlormequat, excessive growth inhibition may be alternately spraying "drop prevention vegetables Po No. 1, No. 2"; results of Adding P and K, 0.3% potassium dihydrogen phosphate spraying, spraying may be appropriately Toyota One fertilizer, 5-7 days 1; strengthen the fertilizer and water management, timely harvesting, spraying some plant growth regulators to improve disease resistance beans, timely pest control.
(Source: Farmers of the Internet: Chengde County, Chengde City Agriculture and Animal Husbandry Liu Shuming)
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