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茄子、辣椒、黄瓜和番茄等蔬菜,由于受到不良因素的影响,会造成早衰,降低产量及效益。早衰的症状为植株萎缩、叶片变黄、果实成熟晚、产量低,严重的可使植株过早死亡,为此,应采取以下综合措施。适时摘心摘心的主要作用是防止植株徒长,减少养分过多消耗,促进植株多结果。实践表明,黄瓜在25片叶左右进行摘心,能促进回头瓜的形成,否则易造成营养运输受阻;番茄的摘心时间要在第四果穗采收后,并
Eggplant, pepper, cucumber and tomato and other vegetables, due to adverse factors, can cause premature aging, reduce production and efficiency. Symptoms of premature aging are plant atrophy, yellowing of leaves, late ripening of fruits, low yield and severe premature death of plants. To this end, the following comprehensive measures should be taken. Timely topping The main role of topping is to prevent the growth of plants, reduce excessive nutrient consumption and promote plant multiple results. Practice shows that cucumber in about 25 leaves topping, can promote the formation of back melon, or easy to cause obstruction of nutrient transport; Topping time in tomato after the fourth harvest, and