春玉米风沙土土壤养分丰缺指标及推荐施肥指标
Soil Nutrient Abundance Index and Recommended Fertilization Index of Sandy Soil for Spring Corn
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摘要: 根据2006—2015年陕西省榆林市春玉米“3414”田间肥效试验和土壤样品检测结果,并结合生产实际,制定榆林市春玉米风沙土土壤养分丰缺指标与推荐施肥指标;总结出“有机无机相结合,减氮增磷补钾配微,前氮后移,分次追施”的施肥原则。Abstract: According to results of‘3414’field fertilizer test and test of soil samples of spring corn in Yulin city of Shaanxi province from 2006 to 2015,and combined with production practice,soil nutrient abundance index and recommended fertilization index of sandy soil for spring corn in Yulin city were formulated.Principle of fertilization that organic-inorganic combination,reducing nitrogen,increasing phosphorus,supplementing potassium and supporting trace elements,anterior nitrogen backward shift and fractionated application were summarized.
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Keywords:
- spring corn /
- sandy soil /
- index of abundance and shortage /
- fertilization index /
- Yulin city
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