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对膜下滴灌棉花施用3种配方液体滴灌专用肥进行肥效试验研究,结果表明:随水施用液体滴灌专用肥可有效促进棉花干物质积累,增加产量,提高肥料利用率。其中A型(N15.7%,P2O57.8%,K2O1.5%)液体滴灌专用肥适宜于砂质土棉田,B型((N18.9%,P2O54.7%,K2O1.4%)适合壤质土棉田施用,而C型(N20.6%,P2O53.1%,K2O1.3%)则在粘质土棉田施用效果较好。
The results showed that: the application of liquid drip irrigation special fertilizer with water can effectively promote the cotton dry matter accumulation, increase the yield and increase the fertilizer utilization rate. Type A (N15.7%, P2O57.8%, K2O1.5%) liquid drip irrigation special fertilizer is suitable for sandy soil cotton field, type B ((N18.9%, P2O54.7%, K2O1.4%) is suitable Loamy cotton fields, while C type (N20.6%, P2O53.1%, K2O1.3%) applied better in clay soil.