条件筛选
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Spring greenhouse cultivation of roses: beware of one disease and one pest
March and April are an important stage when roses in the greenhouse move from recovery into rapid growth, and also a period when various pests and diseases are relatively active. During this time, special attention should be paid to the prevention and control of downy mildew and red spider mites. Downy mildew is a greenhouse disease, prone to occur after the roses leaf out, and occasionally seen in open fields
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Which chemical fertilizers should not be applied to vegetables? Beware of harming vegetable growth
Which chemical fertilizers should be prevented from harming vegetables and are unsuitable for application to vegetables
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Spring wheat: beware of late spring cold snaps, as a new round of cold waves brings sharp temperature drops
A new round of cold waves brings sharp temperature drops; spring wheat should be protected against late spring cold