摘要
为了研究设施栽培条件下,不同施氮量对番茄产量及经济效益的影响,开展了氮肥总量控制试验。试验设不施氮区、推荐施氮区(N 375.0 kg/hm2)、70%推荐施氮区、130%推荐施氮区4个处理,统计各处理下的番茄产量和种植效益。结果表明:不施氮区产量最低,推荐施氮区产量最高,二者差异达到了极显著水平;过量施氮导致番茄着色差、效益降低,以推荐施氮区效益最好。本研究条件下,大棚番茄最佳施氮量为277.6 kg/hm2。
Controlling total nitrogen fertilizer of tomato in autumn and winter was tested to study the effects of diffrent nitrogen application amount on yield and economic benefits of tomato under the condition of facilities cultivation, there were four treatments including no nitrogen district , recommended nitrogen district （ N 375.0 kg/hm2）, 70% recommended nitrogen district and 130% recommended nitrogen district, the yield and benefit of tomato in different treatments were analyzed.The results showed that the yield of tomato in no nitrogen district was lowest, and which in recommended nitrogen district was highest , the difference between them reached very significant level.Excessive application of nitrogen caused chromatic aberration and lower economic benefit , and the benefit of tomato in recommended nitrogen district was highest.Under the conditions of this study , the op-timum amount of nitrogen of greenhouse tomato was 277.6 kg/hm2.
出处
《河北农业科学》
2014年第3期54-56,共3页
Journal of Hebei Agricultural Sciences
基金
石家庄市科技局科技支撑计划项目(11149152A)
关键词
施氮量
番茄
产量
经济效益
Nitrogen application amount
Tomato
Yield
Economic benefits
