首页|长期定位施肥对不同种植模式作物产量和土壤肥力的影响

长期定位施肥对不同种植模式作物产量和土壤肥力的影响

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连续11年在洋芋-玉米和小麦-玉米种植模式下,研究不同施肥处理对作物产量和土壤肥力的影响.结果表明,不同种植模式中,年度产量随施肥的不同产生变化,空白区产量逐年下降,常规区产量稳定,配方区产量稳中有升.常规施肥和配方施肥处理区土壤有机质、全氮呈上升趋势,土壤速效养分变化大,2种种植模式养分变化不同.2种种植模式土壤N和P2O5的投入量都较作物吸收量大,N盈余93.75~192.75kg/hm2,平衡系数大于1.5的占2/3;P2O5配方区盈余10.20~43.65kg/hm2,常规区洋芋-玉米模式盈余137.40kg/hm2,小麦-玉米模式亏损5.85 kg/hm2,平衡系数大于1.5的占1/3;K2O的投入量不足,平衡系数小于0.9的占2/3.
Effect of Different Planting Patterns of Regular Localized Fertilization on Crop Output and Soil Fertility
The planting pattrns of the potato-maize and the wheat-maize have been carried out for 11 years in succession and the study on crop output and soil fertility with applying fertilizer indicatd, planting patterns in wheat-maize and potato-the maize, the annual output varied with different applying fertilizers, and the blank district output droped year by year.The routine district output was steady,and the output of filling a prescription area was steadily increasing. Soil organic matter and the whole nitrogen in routine fertilizer and prescription fertilizer was on the rise.

Planting patternLocalized fertilizationSoil fertility

谢文、胡辉、翟均平、陈会、邓家国

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贵州省毕节地区土肥站,贵州,毕节,551700

贵州省纳雍县寨乐乡农业服务中心,贵州,纳雍,553300

种植模式 定位施肥 土壤肥力

2005

安徽农业科学
安徽省农业科学院

安徽农业科学

CSCD北大核心
影响因子:0.413
ISSN:0517-6611
年,卷(期):2005.33(9)
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