Water and fertilizer coupling model for the yield of greenhouse eggplant in winter cropped in Ningxia southern mountain region

• Published in: Hunan agricultural science & technology newsletter : HASTN Vol. 11; no. 2
• Main Authors: Liu Genhong, Ningxia University, Yinchuan (China), School of Agriculture, Li Jianshe, Ningxia University, Yinchuan (China), School of Agriculture
• Format: Journal Article
• Language: Chinese
• Published: 01.04.2010
• Subjects: APLICACION DE ABONOS; AUBERGINE; AUBERGINES; BERENJENA; FERTILISATION; FERTILIZER APPLICATION; http://www.fao.org/aos/agrovoc#c_10795; http://www.fao.org/aos/agrovoc#c_3954; http://www.fao.org/aos/agrovoc#c_8998; IRRIGATION; RIEGO
• ISSN: 1009-4229

[Objective] The research aimed to study the coupling model of water and fertilizer for the yield of winter eggplant in greenhouse in Ningxia southern mountain region and provide reference for the criteria and cost-saving cultivation of agriculture vegetables in Ningxia southern mountain region. [Method] By using quadratic general rotary unitized design, the mathematics simulation was made on the main cultivation factors (irrigated amount, N application amount, K application amount) that affected the greenhouse eggplant yield in winter cropping in Ningxia southern mountain region. [Result] Three cultivated factors had obvious effects on the eggplant yield in winter cropping and the water and K showed negative effects on the eggplant yield generally. And N showed the positive effect. The order of the influences of three factors on the eggplant yield was as: potassiumnitrogenwater. The single factor effect showed that the eggplant yield increased gradually with the irrigated amount when the irrigation amount was