论文部分内容阅读
通过盆栽试验研究施用柑橘渣对玉米、水稻生长和土壤肥力性状的影响。结果表明,施用不同用量柑橘渣增加水稻株高,降低玉米株高(施柑橘干渣5g/kg土的Oc5处理除外)。Oc5处理对玉米的生物量有明显的提高作用,而Oc20处理(施柑橘干渣20g/kg土)对提高水稻生物量的作用最大。柑橘渣促进玉米吸收钾素,抑制氮素和磷素的吸收。Oc20处理对水稻的全氮、全磷、全钾吸收有很好的促进作用。施用柑橘渣对土壤pH值影响不大,土壤有机质含量随柑橘渣施用量的增加而提高,其中玉米土壤有机质提高18.6%～69.7%,水稻土壤有机质提高0.5%～7.1%,旱地(玉米)土壤碱解氮、有效磷、有效钾和淹水(水稻)土壤碱解氮含量也有随着柑橘渣施用量的增加而增大的趋势。
Pot experiment was conducted to study the effects of applying citrus residue on the growth of maize and rice and soil fertility. The results showed that applying different amount of citrus dregs increased plant height and decreased plant height (except for Oc5 treatment with 5g / kg citrus dry matter). Oc5 treatment significantly increased the biomass of corn, while Oc20 treatment (citrus dry residue 20g / kg soil) had the greatest effect on improving rice biomass. Citrus dregs promote corn to absorb potassium and inhibit the absorption of nitrogen and phosphorus. Oc20 treatment on rice nitrogen, total phosphorus, total potassium absorption has a good role in promoting. Citrus dregs had little effect on soil pH. Soil organic matter content increased with the application of citrus dregs. The content of maize organic matter increased by 18.6% -69.7%, that of paddy soil increased by 0.5% -7.1% The contents of available nitrogen, available phosphorus, available potassium and flooding paddy soil also increased with the increase of citrus application rate.