摘要
采用浮板毛管水培栽培模式,研究低氮N1 (6 mol/m^3)、中氮N2 (12 mol/m^3)和高氮N3 (18 mol/m^3)3种氮素供给对樱桃番茄各生育期生长发育和果实产量品质影响,为华南地区水培樱桃番茄营养管理提供理论指导。结果表明:在苗期—采收前期,营养液氮浓度以12 mol/m^3为宜,保证苗期—采收前期植株生长发育健壮,光合产物及时向果实转运;采收中期—采收后期,氮浓度以18 mol/m^3为宜,防止植株早衰影响营养器官光合产物转运和果实成熟。
Cherry tomato was cultured in a floating capillary hydroponics with different concentrations of liquid nutrient nitrogen to observe the effects of low nitrogen N1(6 mol·m-3),medium nitrogen N2(12 mol·m-3)and high nitrogen N3(18 mol·m-3)on the growth,fruit yield and quality of the cherry tomato in order to provide reference for the nutritional management of hydroponic cherry tomato in southern China.The results showed that the supply of nitrogen solution at the concentration of 12 mol·m-3 in the hydroponic culture of cherry tomato from the seedling stage to the preharvest stage was favorable for the robust growth and development of plants and the timely transport of the photosynthetic products into the fruit.The supply of nitrogen solution at the concentration of 18 mol·m-3 from the middle to the late harvest stages was conducive to prevention of the premature senescence of the plants,leading to impact on the transport of photosynthetic products to vegetative organs and the fruit maturity.
作者
史亮亮
聂俊
张长远
郑锦荣
谭德龙
谢玉明
李艳红
SHI Liangliang;NIE Jun;ZHANG Changyuan;ZHENG Jinrong;TAN Delong;XIE Yuming;LI Yanghong(Agro-innovative Demonstration Base,Guangdong Academy of Agricultural Sciences,Guangzhou 5106420,China;Ministry of Agriculture and Rural Affairs Key Laboratory of Urban Agriculture in South China,Guangzhou,Guangdong 510640,China)
出处
《热带农业科学》
2020年第10期49-59,共11页
Chinese Journal of Tropical Agriculture
基金
2020年广东省科技创新战略专项资金“广州农业高新技术产业示范区关键技术平台建设及农村科技特派员工程”(No.20190001)
2018年广东省科技创新战略专项资金(“大专项+任务清单”管理模式)项目“设施作物优质高产新品种及高效栽培技术示范展示”(No.201909020001)
院长基金专项“设施农业生产关键技术研究”(No.201937)
“果菜产业技术体系创新团队”(No.2019KJ110)。
关键词
氮素供给
樱桃番茄
生育期
生长发育
产量
品质
nitrogen supply
cherry tomato
growth period
growth and development
yield
quality
