日光温室秋延迟黄瓜和番茄敞穴施肥适宜用量的研究

Suitable Fertilizer Application Amount with Uncovered Hole for Late Autumn Cucumber and Tomato in Greenhouse

通过田间试验,研究了日光温室秋延迟黄瓜和番茄的敞穴施肥适宜用量。结果表明:在敞穴施肥条件下,日光温室秋延迟黄瓜和番茄的产量均有随施肥量的增加而增加的趋势。综合试验结果及便于推广,推荐黄瓜和番茄666.7m2的每次敞穴施肥量为20 kg;所测黄瓜样品的硝酸盐和亚硝酸盐含量,均远低于GB18406.1-2001中瓜果类的允许标准,产品是安全的。

The field experiment was carried out to study the suitable fertilizer application amount with uncovered hole for late autumn cucumber and tomato in greenhouse.The results showed that under the uncovered hole fertilizing,the yield of cucumber and tomato increased with the increase of fertilizer application amount.The recommended amount was 20 kg per 666.7m2 each time.The contents of nitrate and nitrite in cucumber were far lower than the allowable standard for melon and fruit in GB 18406.1-2001.The cucumber was safe.