秋季和冬季在大棚栽培的黄瓜、西红柿分别要在9月中旬和10月中下旬定植。有的农户将黄瓜、西红柿这一高一低两种作物同栽培在一个大棚里,这种做法弊多利少。原因是:西红柿、黄瓜两种作物根系分泌的物质是有相互抑制对方生长的作用。如果把这两种作物在一个大棚内混合栽培,势必影响双方的长势。 Cucumbers and tomatoes planted in the greenhouse in autumn and winter are to be planted in mid-September and late-mid-October respectively. Some farmers will cucumber, tomatoes, two kinds of high and low one cultivation with a greenhouse, this approach more harm than good. The reason is: tomato, cucumber two kinds of crops root excretion of substances are mutually inhibit the growth of each other’s role. If these two crops are mixed and cultivated in a green house, it is bound to affect the growth of both parties.