本文選題：還田方式　切入點：土壤　出處：《熱帶作物學報》2017年08期 　論文類型：期刊論文

【摘要】：為減輕秸稈焚燒所帶來的環(huán)境問題和充分利用甘蔗葉資源,在大田環(huán)境下動態(tài)監(jiān)測甘蔗葉粉碎、焚燒和深埋3種還田方式對土壤養(yǎng)分的影響。結果表明:甘蔗葉粉碎還田和深埋還田有利于甘蔗葉中有機碳及氮、磷、鉀養(yǎng)分的緩慢釋放;甘蔗葉焚燒還田提高了土壤堿解氮含量5.6~20.9 mg/kg和速效磷含量0.8~4.0 mg/kg,促進土壤中氮磷向有效態(tài)轉化,焚燒還田初期顯著增加了土壤速效鉀的含量12.3~18.3 mg/kg,但焚燒會損失部分甘蔗葉中碳氮元素,也造成環(huán)境污染。綜合分析認為甘蔗葉粉碎還田是比較省工、方便的處理方式。
[Abstract]:In order to reduce the environmental problems caused by straw burning and make full use of sugarcane leaf resources, dynamic monitoring of sugarcane leaf crushing was carried out in the field environment. The effects of burning and deep burying on soil nutrients were studied. The results showed that the slow release of organic carbon, nitrogen, phosphorus and potassium in sugarcane leaves was beneficial to the slow release of organic carbon and nitrogen, phosphorus and potassium from sugarcane leaves. Incineration of sugarcane leaves increased soil alkali-hydrolyzed nitrogen content of 5.6 ~ 20.9 mg/kg and available phosphorus content of 0.8 ~ 4.0 mg 路kg ~ (-1), and promoted the conversion of nitrogen and phosphorus to available form in soil. In the early stage of incineration, the content of available potassium in soil increased significantly by 12.3 ~ 18.3 mg 路kg ~ (-1) 路kg ~ (-1), but some carbon and nitrogen elements in sugarcane leaves were lost by incineration, which also caused environmental pollution.
【作者單位】： 中國熱帶農(nóng)業(yè)科學院環(huán)境與植物保護研究所;海南醫(yī)學院熱帶醫(yī)學與檢驗醫(yī)學院;中國熱帶農(nóng)業(yè)科學院農(nóng)業(yè)機械研究所;
【基金】：公益性行業(yè)(農(nóng)業(yè))科研專項經(jīng)費“作物秸稈還田技術”(No.201503136)
【分類號】：S158

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