Integrated Crop-Nitrogen Management Improves Tomato Yield and Root Architecture and Minimizes Soil Residual N
文献类型： 外文期刊
作者： Li, Changqing 1 ; Li, Yahao 1 ; Cui, Dongyu 1 ; Li, Yanmei 1 ; Zou, Guoyuan 1 ; Thompson, Rodney 4 ; Wang, Jiqing 3 ; Yang, Jungang 1 ;
作者机构： 1.Beijing Acad Agr & Forestry Sci, Inst Plant Nutr Resources & Environm, Beijing 100097, Peoples R China
2.Hebei Agr Univ, Coll Resources & Environm Sci, Baoding 071001, Peoples R China
3.Hebei North Univ, Coll Agr & Forestry Sci, Zhangjiakou 075000, Peoples R China
4.Univ Almeria, Dept Agron, La Canada De San Urbano 04120, Spain
关键词： greenhouse tomato; cultivation of east-west planting; slow and controlled-release fertilizer; root architecture
期刊名称：AGRONOMY-BASEL （ 影响因子：3.949； 五年影响因子：4.117 ）
ISSN：
年卷期： 2022 年 12 卷 7 期
页码：
收录情况： SCI
摘要： Sustainable intensification of protected vegetable crops entails increasing yield while reducing environmental impact and labor input. To explore a comprehensive strategy for high yielding, highly efficient and high quality production of greenhouse tomato (Solanum lycopersicum L.), an integrated crop-nitrogen management (ICNM) strategy was compared to farmers' traditional management (TM) in a field experiment in a solar greenhouse. A split-plot block design was used. The main factor was the management strategy of ICNM and TM. The secondary factor was four different basal fertilizer treatments, being a control (CK; 0 kg N ha(-1)), carbon-based urea (BU; 100 kg N ha(-1)), controlled release urea (CU; 100 kg N ha(-1)), and conventional compound fertilizer (CF; 100 kg N ha(-1)). An additional 200 kg N ha(-1 )through drip irrigation as topdressing was used. Tomato fruit yield, N uptake, and N partial productivity with ICNM were significantly higher than with TM, increasing by 32.1%, 39.7%, and 31.1%, respectively. The proportion of fine roots was increased in ICNM, and the average diameter of roots decreased by 10.7% compared to TM. There was a significant negative correlation between mean root diameter and N uptake. In conclusion, the ICNM strategy was beneficial to form a good root system configuration, promote the development of shoot biological potential, increase tomato yield, maintain fruit quality, increase N uptake, and reduce environmental risks.
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