摘要
以设施番茄为试材,以不施肥为对照(CK)、设置低水平无机肥T1(N∶P∶K=150∶60∶120 kg·hm^(-2))、中水平无机肥T2(N∶P∶K=300∶120∶240 kg·hm^(-2))、高水平无机肥T3(N∶P∶K=450∶180∶360 kg·hm^(-2)),以及低水平无机肥分别配施低水平有机肥M1(75 kg·hm^(-2))、中水平有机肥M2(225 kg·hm^(-2))、高水平有机肥M3(375 kg·hm^(-2))共7个处理,进行了微润灌溉水肥一体化栽培试验,研究了无机肥减量配施可溶性有机肥对土壤硝态氮和番茄生长的影响,以期为设施番茄绿色高效生产提供参考依据。结果表明:少量无机肥配施有机肥能显著降低土壤硝态氮累积,还能使番茄保持优良的生长状况,提高番茄果实品质,其中M2处理下土壤硝态氮累积量低、生长情况良好、果实品质最优,为最佳施肥比例。
Taking greenhouse tomatoes as the experimental material,a trial was conducted on the water and fertilizer cultivation under moistubEirrigation.Seven treatments were set in the experiment,included CK without fertilization,low level inorganic fertilizer T1(N∶P∶K=150∶60∶120 kg·hm^(-2)),medium level inorganic fertilizer T2(N∶P∶K=300∶120∶240 kg·hm^(-2)),high level inorganic fertilizer T3(N∶P∶K=450∶180∶360 kg·hm^(-2)),and low level inorganic fertilizer respectively applied with low level organic fertilizer M1(75 kg·hm^(-2)),medium level organic fertilizer M2(225 kg·hm^(-2)),and high level organic fertilizer M3(375 kg·hm^(-2)),the effects of reducing inorganic fertilizer and applying soluble organic fertilizer on soil nitrate nitrogen and tomato growth were studied,in order to provide reference for green and efficient production of greenhouse tomatoes.The results showed that a small amount of inorganic fertilizer combined with organic fertilizer could significantly reduce the accumulation of soil nitrate nitrogen,and could also keep the tomato in a good growth condition and improve the quality of tomato fruit.Among them,M2 treatment was the best fertilization proportion because of its low accumulation of soil nitrate nitrogen,good growth and optimal fruit quality.
作者
张凯璐
申丽霞
孟涵
李彬楠
李杰
ZHANG Kailu;SHEN Lixia;MENG Han;LI Binnan;LI Jie(College of Water Conservancy and Engineering,Taiyuan University of Technology,Taiyuan,Shanxi 030024)
出处
《北方园艺》
CAS
北大核心
2023年第15期10-16,共7页
Northern Horticulture
基金
山西省自然科学基金资助项目(202103021224093)。
关键词
微润灌溉
设施番茄
有机肥配施
土壤硝态氮
产量品质
moistub-Eirrigation
greenhouse tomato
allotment of organic fertilizer
nitrate nitrogen in soil
yield and quality
