How to control broadleaf weeds in potato field
In order to control broad-leaf weeds in potato field, ethoxyflurane, pendimethalin and Acetochlor should be used to seal the soil before sowing. During the growing period of potato, there is no good safe and effective drug to control broad-leaf weeds. In the case of mastering the experience of drug use, we can consider using sulfenesulfuron and herbicide. It is understood that DuPont (Tel: 021-58672488) registered 25% sulfenesulfuron water dispersible granules for the control of annual weeds in corn and tobacco fields. it can be used to control a variety of weeds in the stems and leaves of potatoes, tomatoes, eggplants, peppers and other eggplant crops during the growing period, such as Setaria mandshurica, Setaria angustifolia, Euphorbia angustifolia, paspalum, wild oats and other Gramineae weeds, as well as authigenic wheat seedlings. Broad-leaf weeds such as Oxalis, Chenopodium, Polygonum, amaranth, mustard, Portulaca oleracea, Scutellaria angustifolia, Cyperus and other sedge. It is best to apply the pesticide when the weeds are almost all in the field and are in the stage of 2-4 leaves. In the directional uniform spray between the rows, pay attention to control the height of the sprinkler is lower than the crop growth point, so that the liquid is sprayed right between the crop rows, and the medicine can not be sprayed directly to the crop growth point, otherwise it is easy to cause drug damage. It is recommended to expand the area after a successful trial of a small area.
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How to prevent the production of malformed potatoes
The appearance of "tuber flowering" in potatoes is actually cancer. From the name of potato cancer disease, we can know that this disease is mainly harmful to potatoes, not to other crops, let alone to human health. The so-called cancer is due to the bacteria where the bacteria continue to stimulate host cell division, the formation of large and small.
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There are skills in preventing sprouting of potatoes during storage
Symptoms: also known as potato verticillium wilt or precocious disease. At the beginning of the disease, the leaf tip yellowed along the leaf edge, yellowed inward from the leaf vein, then turned brown and dried up from yellow, but did not curl until all the compound leaves died and did not fall off. The initial symptoms of rhizome infection are not obvious, when the leaves are yellowed, the vascular bundles at the open rhizome have browned, and then the above ground stem.
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