本文選題：生物質灰渣 + 退化黃壤�。� 參考：《水土保持學報》2016年02期

【摘要】：以退化黃壤為對象,通過萵筍盆栽試驗,研究了不同施用量的水稻灰(0,10,25,50,100,250g/kg)對作物品質及退化黃壤理化性質的影響,并進一步分析了水稻灰不同施用量下土壤液塑限的變化。結果表明:(1)水稻灰的施用提高了萵筍氨基酸和還原糖含量,以施用量為50~100g/kg的處理效果較佳,但僅施用量為50g/kg時的萵筍硝酸鹽與處理I(0g/kg)比較減少了54.9%;水稻灰施用能提高萵筍中全氮、全磷、全鉀含量,且隨著灰渣施用量的增加而逐漸升高,但過量水稻灰處理(250g/kg)的萵筍全氮、全磷含量的增加量較其他灰渣處理明顯減少。(2)水稻灰處理提高了退化黃壤pH值,改善了土壤酸化情況,其中處理V(100g/kg)的退化黃壤pH值由4.84上升至7.13。水稻灰施用可有效提高土壤有效磷和速效鉀含量,但對堿解氮的作用并不明顯。(3)各處理0.25mm土壤團聚體水穩(wěn)定性表現為處理V(100g/kg)處理IV(50g/kg)處理III(25g/kg)處理VI(250g/kg)處理II(10g/kg)處理I(0g/kg),其中處理V的0.25mm團聚體破壞率由63.1%減至17.6%,同時對0.25mm土壤團聚體水穩(wěn)定性提高效果最佳,但過量施用水稻灰(250g/kg)改良效果降低,0.25mm團聚體破壞率達到了42.4%。土壤液、塑限則隨水稻灰施用量增加而增加,其中250g/kg水稻灰處理分別為31.67%,46.8%,有效提高了退化黃壤的保水能力�？傮w上,水稻灰施用量在50~100g/kg時,對退化土壤的養(yǎng)分環(huán)境、物理結構及作物養(yǎng)分品質的綜合改良效果最佳。
[Abstract]:A pot experiment of lettuce in degraded yellow soil was conducted to study the effects of different application rates on crop quality and physical and chemical properties of degraded yellow soil, and to further analyze the change of soil liquid plastic limit under different application rates of rice ash. The results showed that the application of rice ash increased the content of amino acid and reducing sugar in lettuce, and the application amount of 50~100g/kg was the best. However, the nitrate content of lettuce treated with 50g/kg decreased 54.9% compared with that of treatment I _ 2O _ 0 g / kg, and the content of total nitrogen, total phosphorus and total potassium in lettuce increased with the increase of ash application rate, and the content of nitrogen, phosphorus and potassium in lettuce increased with the application of rice ash, and the content of nitrogen, phosphorus and potassium in lettuce increased with the application of rice ash. However, the increase of total phosphorus content in asparagus lettuce treated with excessive rice ash (250 g / kg) was significantly lower than that of other ash treatments. (2) Rice ash treatment increased the pH value of degraded yellow soil and improved soil acidification. The pH value of degraded yellow soil increased from 4.84 to 7.13. Application of rice ash can effectively increase the content of available phosphorus and available potassium in soil. But the effect of alkali hydrolyzing nitrogen was not obvious. 3) the water stability of 0.25mm soil aggregates in each treatment was as follows: treatment VN 100 g / kg; treatment IVI 50 g / kg; treatment III treatment 25 g / kg; treatment VIN 250 g / kg; treatment 2 + 10 g / kg) treatment; treatment I 0 g / kg; treatment V reduced the destruction rate of 0.25mm aggregates from 63.1% to 17.6 g / kg; meanwhile, the destruction rate of 0.25mm aggregates in treatment V was reduced from 63.1% to 17.6 g / kg, and to 0.25mm soil at the same time, the damage rate of 0.25mm aggregate in treatment V was reduced from 63.1% to 17.6%. The water stability of soil aggregate is the best. But excessive application of rice ash (250 g / kg) reduced the damage rate of 0.25mm agglomerates to 42.4%. The plastic limit of soil liquid increased with the application of rice ash, and the 250g/kg rice ash treatment was 31.67 and 46.8respectively, which effectively improved the water retention ability of degraded yellow soil. On the whole, when rice ash was applied in 50~100g/kg, the comprehensive improvement effect on the nutrient environment, physical structure and crop nutrient quality of degraded soil was the best.
【作者單位】： 西南大學資源環(huán)境學院;西南大學數學與統(tǒng)計學院;
【基金】：大學生科技創(chuàng)新“光炯”培育項目(20140101)
【分類號】：S156

【相似文獻】

相關期刊論文 前10條

1 羅美;周運超;;白云巖發(fā)育形成土壤團聚體的機制[J];貴州農業(yè)科學;2014年03期

2 呂文星;張洪江;王偉;杜士才;吳煜禾;何萍;肖莉;;重慶四面山不同林地土壤團聚體特征[J];水土保持學報;2010年04期

3 仇建飛;竇森;邵晨;李明敏;安豐華;;添加玉米秸稈培養(yǎng)對土壤團聚體胡敏酸數量和結構特征的影響[J];土壤學報;2011年04期

4 章明奎,何振立;成土母質對土壤團聚體形成的影響[J];熱帶亞熱帶土壤科學;1997年03期

5 郭艷玲;寶祥;;農牧交錯帶退耕種草對土壤團聚體的影響[J];內蒙古草業(yè);2005年04期

6 李戀卿,潘根興,張旭輝,龔偉;土壤團聚體有機碳穩(wěn)定性同位素組成[J];南京農業(yè)大學學報;2000年01期

7 蔣靜;周運超;杜光平;;石灰?guī)r發(fā)育的喬木林下土壤團聚體形成的影響因素[J];中國水土保持;2011年07期

8 丁楊;張建軍;茹豪;王丹丹;李玉婷;李志龍;;晉西黃土區(qū)不同林地土壤團聚體分形維數特征與土壤養(yǎng)分相關關系[J];北京林業(yè)大學學報;2014年04期

9 曾全超;董揚紅;李鑫;李婭蕓;劉雷;安韶山;;基于Le Bissonnais法對黃土高原森林植被帶土壤團聚體及土壤可蝕性特征研究[J];中國生態(tài)農業(yè)學報;2014年09期

10 肖復明;范少輝;汪思龍;熊彩云;于小軍;申正其;;毛竹林地土壤團聚體穩(wěn)定性及其對碳貯量影響研究[J];水土保持學報;2008年02期

相關會議論文 前1條

1 劉彩霞;黃為一;;耐鹽堿細菌對鹽堿土壤團聚體形成的促進作用[A];中國微生物學會《第二屆全國農業(yè)微生物研究及產業(yè)化研討會》和《第十一屆全國殺蟲微生物學術研討會》暨《湖北省暨武漢市微生物學會和內蒙古微生物學會2008年會》論文摘要[C];2008年

，

本文編號：2005235