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1. Why should preventive measures and biological control methods bepreferred for protecting crops? -2. What factors may be responsiblefor losses of grains duringstorage? |
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Answer» er. Preventive measures ensure that the crop plants are PROTECTED from the harmful biotic factors (such as diseases, weeds and insects) and abiotic factors (such as drought and SALINITY). ... Hence, preventive measures & biological control methods are preferred for protecting crops.2) ANSWER During the storage of grains, various biotic factors such as insects, rodents, mites, fungi, BACTERIA, ETC. and various abiotic factors such as inappropriate moisture, temperature, lack of sunlight, flood, etc. are responsible for losses of grains. |
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