摘要
在田间利用防雨棚和测坑设施进行了水肥耦合对树莓生长、产量影响的试验研究,试验运用二因素五水平回归正交组合设计,建立了树莓产量的水肥耦合数学模型。结果表明:在现蕾期和花期,中水平的土壤含水量和中水平的施肥量(土壤含水量控制在下限26.2%,施肥量270kg/hm2)有利于植株生长;在结果期,较高的土壤含水量和施肥量(土壤含水量控制在31.9%以上,施肥量460.95kg/hm2)有利于树莓植株的生长。当土壤含水量控制在28.25%以上、施肥量为460.95kg/hm2时,产量达到最大值(19 169.25kg/hm2)。
By quadratic regression orthogonai combination design, this paper studies the effect of water and fertilizer mteraction on the growth and the yield of the raspberry in the testing-pit among the fields. It also obtains a mathematical model that explains the relationship between the yield of the raspberry and the water and fertilizer interaction. The results show that： during the squaring period and florescence, medium-level soil water content and fertilizer（the soil water content more than 26.2% and the fertilizer rea-ches 270 kg/hm^2）is beneficial to the growth of the raspberry; during fructescence, higher level soil water content and fertilizer（the soil water content equals 31.90% and the fertilizer reaches 460. 95 kg/hm^2） is beneficial to the growth of raspberry. When the soil wa ter content is more than 28.25% and the fertilizer reaches 460.95 kg/hm^2 , the yield of the raspberry reaches the maximum（19 169 kg/hm^2 ）.
出处
《中国农村水利水电》
北大核心
2012年第11期35-37,42,共4页
China Rural Water and Hydropower
基金
水利部公益性项目(201001077)
关键词
树莓
产量
小管出流
水肥耦合模型
raspberry
yield
small tube irrigation
water and fertilizer interaction model
