During the ripening period of peanut pods, the pods often suffer from rotten pods due to various factors, resulting in reduced peanut yield and decreased quality. The causes of peanut rotten fruit mainly include rotten fruit caused by pests and diseases, rotten fruit caused by drought damage, rotten fruit caused by calcium deficiency, etc. For the cause of peanut rotten fruit, taking corresponding measures is the key to ensuring high yield of peanut. How to prevent and control peanut rotten fruit? The specific introduction is as follows:
1. Rotten fruit caused by pests and rats
It is necessary to use the poison bait to kill the voles in time, to control the cockroach to use 50% phoxim emulsion 1~1.5 kg, to 1500-2000 kg of water, evenly pour or mix 30 kg of fine sand to stalk the ridge, and then water the control.
2. Rotten fruit caused by drought damage
Reasonable irrigation and drainage, generally when the soil water content is less than 10%, it is necessary to water in time to prevent the peanut fruit stalk from aging and rotten fruit due to drought. In case of heavy rain or heavy rain, pay attention to drainage to prevent rainwater from impregnating the roots and pods of peanuts, affecting the absorption capacity of roots and pods and causing rotten fruit.
3, the rotten fruit caused by the disease
The diseases causing peanut rotten fruit mainly include root rot, stem rot and blight. For the fields with bad rotten fruit, the peanuts should be treated with soil before sowing. The use of 50% carbendazim 1 kg, mixed with fine soil 25 kg, and the whole field can effectively prevent and control a variety of soil-borne diseases.
4, for the rotten fruit caused by calcium deficiency
When fertilizing, in addition to paying attention to the application of calcium fertilizer, it should also be supplemented with boron and zinc fertilizer, which can not only reduce the fruit, increase the grain weight, but also promote the absorption of calcium by peanuts. In addition, because nitrogen and potassium have an antagonistic effect on calcium, nitrogen and potassium fertilizers are too much, and peanuts will also show symptoms of calcium deficiency, which will cause rotten fruit, so do not blindly increase nitrogen and potassium fertilizers.
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