CAJ | 학술논문

本研究采用盆栽试验,通过在风沙土中添加不同比例的泥炭、腐泥及其混合物,对比试验前后各个处理的风沙土理化性质变化.结果表明,在风沙土中施人8%～12%的泥炭或者32%的腐泥或者二者混合添加,都可明显改善土壤容重和pH值,增加土壤养分含量和物理性粘粒含量.这一点,无论是在盆栽白菜前或者试验后的土壤中,都可以得到证明.但是在盆栽结束后,再次种植作物时,应根据作物的需要,补充氮肥,而磷肥和钾肥可以少加或者不加.
본연구채용분재시험,통과재풍사토중첨가불동비례적니탄、부니급기혼합물,대비시험전후각개처리적풍사토이화성질변화.결과표명,재풍사토중시인8%～12%적니탄혹자32%적부니혹자이자혼합첨가,도가명현개선토양용중화pH치,증가토양양분함량화물이성점립함량.저일점,무론시재분재백채전혹자시험후적토양중,도가이득도증명.단시재분재결속후,재차충식작물시,응근거작물적수요,보충담비,이린비화갑비가이소가혹자불가.
Three level of peat.10 level of sapropel and 3 levels of peat&sapropel were respectively added into aeolian sandy soil to plant Chinese cabbage in the pot.The physical and chemical properties of soils with difierent treatments before and after planting were compared.The results showed that 8-12%peat or 32%sapropel or their mixture has obvious effect on improving of bulk density and pH value.Meanwhile,it obviously increases the content of nutrients and physical clay.This can be proved whether it is before or after experiment.But nitrogen should be added,phosphate and potash can be add a little or no if any crop was planted in the improved soils again.