Peanut fruit rot, also known as "robust fruit disease," has been aggravated during rainy seasons when lots of crops have been planted during many years of heavy cropping. It has become a major pest of peanuts and has a major impact on yield and quality.
Fruit rot mainly manifests as peanut rot, small and hard kernels, stunting, yellowish peels, and severe whole pods are dark black, generally occurring in whole plants or spots. There are many causes of the disease, especially Fusarium fungus soil-borne pathogens, or soil calcium deficiency, earthworms and other ground pests bite or disease caused by the need for early prevention.
1. The rotation is down. In recent years, fruit rots are easily induced and should be cropped in scientific rotation and replanted at intervals of two to three years.
2. Change in different places. Some farmers did not pay attention to the selection and rejuvenation of peanut varieties, resulting in serious degradation of the varieties, deterioration of quality, decline in yield, increased susceptibility, and especially sensitivity to soil-borne fruit rot. For this reason, the method of changing crops in different places can be used, which can not only reduce the incidence of diseases, but also increase the output of peanuts. For example, growers in Hebei province can purchase peanut seeds from Shandong and Henan provinces. According to a survey of production trials, changing peanuts in different places can increase production by 15%-30%.
3. Balanced fertilization. Peanuts are a kind of economic crops that require more fertilizer, especially the demand for phosphorus and potassium fertilizers. In addition, the addition of calcium, sulfur, zinc, manganese, molybdenum, boron and other trace element fertilizers can also significantly improve the output and quality of peanuts. Reduce the incidence of disease. For sandy beach land with poor soil fertility, organic fertilizer must be added, and fertilizer, nitrogen, phosphorus, and potassium fertilizers may be used. After the peanut enters the pod stage, applying nitrogen, potassium fertilizer or compound fertilizer twice or spraying full-fledged compound fertilizer on the leaves can reduce the occurrence of diseases. In addition, the incorporation of appropriate amount of biological bacterial fertilizer in the base fertilizer to increase the content of beneficial bacteria in the soil and reduce the content of harmful bacteria has obvious effects on the prevention of fruit rot.
4. Chemical seed dressing. Tests have shown that when sowing, peanut seed coating agents containing fungicides are used, such as Gao Qiao + Wei Fu, Fung Chia Kit, and Nonghe Qiahe etc. or with other special agents containing fungicides for peanut seed dressing. Effectively reduce the incidence of pests and diseases, effectively prevent fruit rot, and also have a good preventive effect on root rot, stem rot, etc.
5. Early prevention and pest control. Peanuts once infected with deadly diseases such as root rot and stalk rot cause fruit rot. Earthworms such as earthworms, golden worms, and ground tigers will bite fruit and leave wounds on the pods. The wounds will be susceptible to germs, especially the large number of Fusarium bacteria in the soil will spread easily, causing fruit rot. To this end, it is necessary to scientifically prevent, prevent and treat pests and diseases as soon as possible, and take preventive measures.
Digital 60m short range laser rangefinder is a laser measurement device which is supposed to replace tape measure, ruler, and other traditional length meauring tool. Laser ruler as its name, it is a electronic ruler which user laser to measure distance.
Our laser measurer has Multiply fuctions:
1. Height measure & Length measure &Distance measure
2. Area Measure
3. Volume Measure
4. Pythagorean Measure
60M Laser Measure,60M Laser Distance Measure,Laser Distance Measure Oem,60M Digitial Laser Distance Measure
Chengdu JRT Meter Technology Co., Ltd , https://www.jrt-measure.com