不同肥料运筹对夏玉米的生产效应

【研究目的】以高产夏玉米新品种鲁单9006为试验材料,研究了不同肥料运筹对夏玉米产量、籽粒品质和土壤性状的影响。【方法】大田试验结合室内分析试验比较分析了不同肥料运筹的生产效应。【结果】与施用普通化肥相比,施用包膜化学肥料特别是控释肥料在玉米增产、肥料利用效率与经济效益提高等方面的效果明显要好,并可部分地改善玉米籽粒品质和耕层土壤性状;不同肥料运筹的玉米生产效益分析结果表明:施用等养分量控释肥的经济效益显著高于普通化肥,减量控释肥施用的经济效益要优于全量控释肥,普通化肥一次施用优于分次施用。【结论】施用包膜化学肥料特别是控释肥料对夏玉米的生产效应明显好于施用普通化肥;在提高玉米产量的同时,减少肥料成本投入也是提高玉米生产效益的有效措施。

Applying Effect of Different Fertilization Strategies on Summer Maize

OBJECTIVE]The new high yield variety of summer maize LD9006 was used to study the applying effect of different fertilization strategies on yield, grain quality of summer maize and topsoil properties.METHOD]Farm experiment combined with lab experiment were applied to analyze the applying effect of different fertilization strategies on summer maize.RESULTS]Comparing with applying common fertilizer, the effect of applying coated fertilizer was observably better on increasing yield, nitrogen-used efficiency and produce benefit, and which improve partially grain quality of summer maize and topsoil properties, especially controlled-release fertilizer(CRF); The analyzing about produce benefit of different fertilization strategies on summer maize showed that applying CRF was more effectual than applying common fertilizer. 2/3 amount CRF was observably better than full amount on produce benefit, applying fertilizer one time was observably better than applying fertilizer two times, CONCLUSION]The effect of applying coated fertilizer was observably better than applying common fertilizer, especially CRF. At the same time of increasing yield of summer maize, reducing the fertilizer cost was the effective measure to increase produce benefit of summer maize.