条件筛选
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What precautions should be taken when applying pesticides to grapes?
Precautions for pesticide application on grapes
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Methods to extend the flowering period of narcissus and when they apply
Narcissus, with its graceful blooms riding the waves and its rich fragrance, is an important ornamental flower for New Year's Day and the Spring Festival. It can both beautify courtyards and be featured in narcissus exhibitions. The narcissus asks for very little; a single basin of clear water is enough for it to live out its entire life. It does not care