【摘要】 取旱地粉垄0～30、0～40、0～50、0～60 cm和水田0～40 cm土壤剖面样品,以其相对应的原土为对照,测定有机质、速效氮、磷、钾含量和有效硼、铜、锌、锰含量。结果显示,粉垄整地后土壤中的速效养分含量均比原土增加,旱地有机质、速效氮、速效磷和速效钾的增加量分别为3.02%～35.16%、6.80%～39.54%、2.81%～44.46%、7.72%～53.71%,微量元素硼、铜、锌、锰的有效含量增加;水田粉垄土壤有机质、速效氮、磷、钾的增加量分别为19.64%、24.02%、24.27%、57.78%,硼、铜、锌等微量元素含量增加。提出了作物栽培的新理论——"根"本理论。更多还原

【Abstract】 Taken smash-ridging 0~30 cm,0~40 cm,0~50 cm,0~60 cm on dry land and 0~40 cm on paddy field for soil sample,comparison with its corresponding soil,determinate of content for organic matter,available N,available P,available K and effective B,effective Zn,effective Cu,effective Mn.The results showed that available nutrients in soil were increased after smash-ridging of land,organic matter,available N,available P,available K were respectively 3.02%~35.16%,6.80~39.54%,2.81~44.46%,7.72~53.71% on dry land,same of trace element such as B,Cu,Zn,Mn effective contents were increased;organic matter,available N,available P,available K were respectively 19.64%,24.02%,24.27%,57.78% on paddy field,and contents of B,Zn,Cu were increased.The paper proposed a new theory in plant cultivation,theory is take "roots" as base.更多还原