| 摘要: |
| 1980-1985年,同京郊大兴县农科所协作,并在他们试验基地连续进行了五年翻压田菁定位试验。结果表明:①京郊砂质潮土翻压田菁平均年增产幅度为5.4%左右,而且翻压年限越长,增产幅度越大。②,翻压田菁对土壤有机质增加的程度取决于翻压年限和翻压时田菁的 C/N;一般地说,翻压一年田菁至少可以补偿作物对土壤有机质两年的消耗。尚可增加 N、P 等有效养分。③,翻压田菁可促进土壤腐殖质的积累,也影响腐殖质各组分的变化。C/N 下降,HA/FA 上升。 |
| 关键词: 京郊 土壤有机质 有效养分 土壤腐殖质 翻压 田菁 有机质含量 砂质潮土 定位试验 增产幅度 |
| DOI： |
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| PRELIMINARY STUDY ON THE EHHECT OF PLAWING SESBANIA CANNABINA PERS ON THE HERTILITY OF A SAUDY LOAM SOILS NEAR BEIGING |
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| Abstract: |
| Five Years of continuous experimenis on the effects of plowing Sasb- ania cannabina pers on soil fertility and yield were carried cooperate w- ith Daxing county institute of agricultural science on the Daxing exper- imetal sxation.The results may be summarived as follows. 1.The average increase of anunal tatol yield on sandy loam soils was abast 5.4%,the more the year of plowing,the higher the incrase of yi- eld. 2.Estent of increase arganic matter content of soils depended upon ye- ars of plowing sasbania ... |
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