本文選題：保水劑 + 腐植酸　； 參考：《農(nóng)業(yè)環(huán)境科學(xué)學(xué)報》2017年12期

【摘要】：為研發(fā)基于功能互補的不同環(huán)境材料復(fù)合對土壤水分和氮磷肥保持增效的同步效應(yīng),本文選取保水劑(A)、腐植酸(B)和沸石(C),通過室內(nèi)土柱模擬方法,采用正交實驗設(shè)計,探究3種不同環(huán)境材料復(fù)合對土壤水分和氮磷肥保持同步增效的主次和不同目標的組合優(yōu)化,最終獲得提高土壤水分和土壤氮磷保持增效的最優(yōu)組合,通過過程分析探討不同環(huán)境材料對土壤水肥保持的效應(yīng)機理。結(jié)果表明:3種環(huán)境材料復(fù)合對土壤水分和氮磷肥保持增效有明顯效果,對水分保持和氮磷肥同步增效的最優(yōu)組合為A3B3C2(即保水劑、腐植酸和沸石添加量為1.5、1.5 g·kg~(-1)和9.0 g·kg~(-1)),該組合相比CK的土壤水分淋出量減少3.5%,氮素淋出量減少12.1%,磷素淋出量增多65.5%;比較發(fā)現(xiàn),沸石對土壤淋溶液p H和EC值影響最大,保水劑居中,腐植酸作用最小;3種環(huán)境材料的添加可增加土壤孔隙度,改善土壤團粒結(jié)構(gòu),具有改良土壤的效應(yīng)。研究結(jié)果為新型肥料研發(fā)提供重要參考。
[Abstract]:In order to develop the synergistic effect of different environmental materials based on complementary function on soil moisture and nitrogen and phosphorus fertilizer retention, this paper selected water retaining agent Agna, humic acid B) and zeolites Che, and adopted orthogonal experimental design by means of indoor soil column simulation method. To explore the combination optimization of three kinds of environmental materials to improve the synchronization and efficiency of soil water and nitrogen and phosphorus fertilizer, and to obtain the best combination to improve the efficiency of soil water and soil nitrogen and phosphorus retention. The effect mechanism of different environmental materials on soil water and fertilizer conservation was discussed through process analysis. The results showed that the compound of three environmental materials had obvious effect on soil moisture and nitrogen and phosphorus fertilizer, and the optimum combination of water conservation and nitrogen phosphorus fertilizer was A3B3C2 (water retaining agent). The amount of humic acid and zeolite was 1.5 g / kg ~ (-1) and 9.0 g / kg ~ (-1) respectively. Compared with CK, the amount of soil water leaching decreased by 3.5%, the amount of nitrogen leaching decreased by 12.1g, and the amount of phosphorus leaching increased by 65.5%. The addition of three kinds of environmental materials with minimal humic acid effect can increase soil porosity, improve soil aggregate structure and improve soil quality. The results provide an important reference for the research and development of new fertilizer.
【作者單位】： 中國礦業(yè)大學(xué)(北京)化學(xué)與環(huán)境學(xué)院;北京首創(chuàng)環(huán)境投資有限公司;
【基金】：十三五國家重點研發(fā)計劃項目(2016YFC0501108) 國家自然科學(xué)基金項目(41571303) 三峽后續(xù)工作科研課題(2015HXKY2-4) 中央高校基本科研業(yè)務(wù)費專項基金(2016QH02) 北京市自然科學(xué)基金項目(8152025)~~
【分類號】：S152.7;S158

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