有機(jī)物料對植煙土壤速效養(yǎng)分含量的影響
Effects of Organic Materials Application on Available Nutrient Contents in Tobacco Growing Soils
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摘要: 為探討煙田中有機(jī)物料的養(yǎng)分釋放問題，用砂濾管模擬的方法研究了幾種常用有機(jī)物料施入紫色土煙田后土壤pH,、有效氮,、速效磷、速效鉀以及有機(jī)質(zhì)組分當(dāng)季的變化情況,。結(jié)果表明,，水稻秸稈、花生餅肥,、豬糞,、生物有機(jī)肥皆可不同程度地提高煙株移栽后30～60 d土壤環(huán)境中有效氮、速效磷,、速效鉀的含量,，保持土壤肥力及改善有機(jī)質(zhì)品質(zhì)。其中,，花生餅肥提高土壤有效氮含量的幅度最大,，其次為生物有機(jī)肥，且兩者皆能在第60 d時適時下降,，而生物有機(jī)肥保持土壤肥力及改善有機(jī)質(zhì)品質(zhì)效果最佳,。Abstract: Carborundum tube simulation method was employed to study the changes of soil pH, major available nutrients and organic matters after application of organic materials in tobacco fields of puple soil in Nanxiong, Guangdong Province. Results showed that application of rice straw, peanut cake fertilizer, pig manure and bio-organic fertilizer could enhance the contents of soil available nutrients in 30-60 days after transplanting, with the maintenance of soil fertility and the improving of organic matters quality. The peanut cake fertilizer could most remarkably improve the content of available nitrogen, followed by bio-organic fertilizer, and the nitrogen level in both treatments declined at the 60th day after transplanting. Bio-organic fertilizer exhibited the optimum maintence of soil fertility and improving of organic matters quality.
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