摘要
氮肥达到一定施肥量后，黄瓜产量并不随施肥量的增加再增加，而果实中硝酸盐含量随施肥量增加几乎成正比例增加，高氮处理为低氮处理的２５６．４％，氮肥的合理使用应引起人们的注意；最大叶叶面积和叶片数的增长速度、叶绿素含量、净光合速率都以中氮处理为高。
The relationships between yield and nitrate accumulation of cucumber and nitrogen applications was investigated. Results show that when the nitrogen amount was at a high level, the cucumber yield did not increase with amount of nitrogen; but the nitrate accumulation in the fruits continued increasing, and the nitrate content in high nitrogen treatment was 256. 4 percent as much as that in the low nitrogen treatment.
出处
《中国蔬菜》
北大核心
1996年第3期26-28,共3页
China Vegetables
关键词
黄瓜
施肥量
产量
硝酸盐含量
氮肥
Cucumber, Nitrogen application, Yield, Nitrate accumulation
