CAJ | 학술논문

利用燃煤电厂脱硫石膏改良盐碱地对于确保国家粮食安全和生态安全,发展循环经济具有重要意义,已经引起国内外的广泛关注.选择具有典型代表性的宁夏西大滩碱化土壤,采用田间试验进行犁翻与旋耕施用脱硫石膏改良碱化土壤的效果研究.研究表明犁翻与旋耕施用脱硫石膏,对降低土壤碱化度、总碱度和pH值,提高油葵(Helianthus annuus)出苗率和产量的效果有所不同.采用旋耕较犁翻对降低土壤碱化度、总碱度和pH值,提高油葵出苗率和产量的效果较好.旋耕施用脱硫石膏较犁翻油葵出苗率提高9.4%,产量提高8.2%;犁翻后再旋耕施用脱硫石膏较犁翻与旋耕,效果更好.犁翻后再旋耕较旋耕和犁翻油葵出苗率分别提高13.6%和3.8%,产量分别提高16.2%和7.4%.旋耕施用脱硫石膏较犁翻施用有利于提高产投比,其产投比提高0.13;犁翻后再旋耕较旋耕和犁翻更有利于提高产投比,其产投比分别提高0.14和0.01.
이용연매전엄탈류석고개량염감지대우학보국가양식안전화생태안전,발전순배경제구유중요의의,이경인기국내외적엄범관주.선택구유전형대표성적저하서대탄감화토양,채용전간시험진행리번여선경시용탈류석고개량감화토양적효과연구.연구표명리번여선경시용탈류석고,대강저토양감화도、총감도화pH치,제고유규(Helianthus annuus)출묘솔화산량적효과유소불동.채용선경교리번대강저토양감화도、총감도화pH치,제고유규출묘솔화산량적효과교호.선경시용탈류석고교리번유규출묘솔제고9.4%,산량제고8.2%;리번후재선경시용탈류석고교리번여선경,효과경호.리번후재선경교선경화리번유규출묘솔분별제고13.6%화3.8%,산량분별제고16.2%화7.4%.선경시용탈류석고교리번시용유리우제고산투비,기산투비제고0.13;리번후재선경교선경화리번경유리우제고산투비,기산투비분별제고0.14화0.01.
The study is carried out with the representational solonetzic soil of Xidatan of Ningxia on effect of plowing and rotary tillage on improved solonetzic soil with desulfurized gypsum. The result shows that application of desulfurized gypsum in improving solonetzic soil has greatly reduced soil alkalinity, total alkalinity and pH value and increased sunflower sprouting rate and output. However, applications of desulfurized gypsum by plowing and rotary tillage have different effect on reduction of soil alkalinity, total alkalinity and pH value as well as increase of sunflower sprouting rat and output. Rotary tillage has a better effect than plowing in reduction of soil alkalinity, total alkalinity and pH value as well as increase of sunflower sprouting rat and output. Application of desulfurized gypsum by rotary tillage has the sunflower sprouting rate and output respectively 9.4% and 8.2% higher than that by plowing; application of desulfurized gypsum by plowing followed by rotary tillage may lead to even better effect. In this way the sunflower sprouting rate increases 13.6% and 3.8%, and the output increases 16.2% and 7.4% respectively comparing with application of desulfurized gypsum by rotary tillage and plowing.