CAO Zheng-mei,SHI Dong-qian,Wan Li-jun,et al.Study on the Influence of Sowing Dates and Plastic Sheeting on Maize Hybrids Nutrient Uptake and Soil Nutrient Supply[J].Research of Soil and Water Conservation,2001,8(03):40-44.
播期及覆膜处理对不同玉米杂交种养分吸收及土壤养分供应影响的研究
- Title:
- Study on the Influence of Sowing Dates and Plastic Sheeting on Maize Hybrids Nutrient Uptake and Soil Nutrient Supply
- Keywords:
- sowing dates; plastic sheeting; maize; nutrient; soil enzyme activity
- 分类号:
- S513.042;S513.048
- 摘要:
- 采用大跨度调整播期并加以覆膜处理研究对不同玉米杂交种养分吸收和土壤养分供应的影响，结果表明：播期对产量和养分吸收量的影响达极显著性水平；覆膜栽培能加快早期播种玉米的生育期进程，而不能显著提高玉米产量；掖单13品种的产量和氮钾的吸收量显著高于登海1号；土壤有效养分含量与植株对三要素的吸收存在负相关关系；品种间、覆膜与对照处理间土壤转化酶、过氧化氢酶及脲酶活性差异不明显，但活性受地温、酶反应底物浓度等因素综合影响。
- Abstract:
- This experiment was conducted to investigate the effect of sowing dates and plastic sheeting on nutrient uptake in maize hybrids and the ability of soil nutrient supply. The effect of sowing date on the yield and the amount of nutrient absorption is extremely remarkable. With plastic sheeting the growth of early sowing maize is accelerated, while the rise of yield is not remarkable. The yield and the absorption amount of N and K are higher in the species Yedan 13 than that of Denghai 1 obviously. The nutrient content in the soil is in inverse proportion to the nutrient absorption in the maize. The difference in the activity of soil invertase、gatalase and urease are not remarkable between species, plastic sheeting and control, but their activity is affected by the ground temperature, enzyme reaction concentration and so on.
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备注/Memo
收稿日期:2001-6-6。
基金项目:山东省人民政府可持续发展科技示范工程“山区生态资源保护及综合开发利用技术的研究与示范”项目资助
作者简介:曹正梅，女，（1974- ），硕士学位，助工，从事环境保护的管理和研究工作，发表论文10余篇.