發(fā)布時間：2018-05-19 17:23

  本文選題：玉米復配酸化 + 土壤有效磷��； 參考：《新疆農(nóng)業(yè)科學》2017年04期

【摘要】：【目的】研究不同比例硫酸銨(生理酸性)和磷酸脲(化學酸性)在石灰性土壤上施用,對土壤酸堿度、土壤有效磷含量和玉米對磷素吸收及產(chǎn)量的影響�！痉椒ā坎捎锰镩g小區(qū)試驗方法,模擬大田條件下復配酸化劑對作物生長發(fā)育的影響�！窘Y(jié)果】施用硫酸銨和磷酸脲復配顯著降低局部土壤pH,且隨施用次數(shù)的增加,酸化效果呈現(xiàn)增強的趨勢。在第6次施用復配酸化后酸化效果最強,土壤pH最大降幅0.35個單位,并且復配酸化顯著提高了土壤有效磷含量。在等養(yǎng)分投入和管理水平下,施用復配酸化能增加玉米植株生物量和提高植株磷素累積量。與常規(guī)施肥處理相比,復配酸化的磷素累積量分別增加了29.86%、15.06%、11.52%,玉米產(chǎn)量提高了7.72%~10.58%�！窘Y(jié)論】滴灌條件下施用復配酸化是提高石灰性土壤養(yǎng)分有效性和作物增產(chǎn)的一種有效方法。
[Abstract]:[Objective] to study the effects of different proportions of ammonium sulfate (physiological acidity) and urea phosphate (chemical acidity) on calcareous soil, soil acidity and alkalinity, soil available phosphorus content and the effect of Maize on phosphorus absorption and yield. [results] the application of ammonium sulfate and urea phosphate compound significantly reduced the local soil pH and increased the acidification effect with the increase of application times. The acidification effect was the strongest after the sixth application of combined acidification, and the soil pH was greatly reduced by 0.35 units, and the soil available phosphorus content was significantly increased by the compound acidification. Under the rational level, compound acidification could increase the biomass of maize plant and increase the accumulation of phosphorus in the plant. Compared with the conventional fertilization, the accumulation of phosphorus in the compound acidification increased by 29.86%, 15.06%, 11.52%, and the yield of maize increased by 7.72%~10.58%. [Conclusion] the application of compound acidification under drip irrigation was to improve the nutrient of calcareous soil. An effective method of efficiency and crop yield.
【作者單位】： 石河子大學農(nóng)學院;新疆生產(chǎn)建設(shè)兵團綠洲生態(tài)農(nóng)業(yè)重點實驗室;
【基金】：農(nóng)業(yè)部行業(yè)公益性專項“農(nóng)作物最佳養(yǎng)分管理技術(shù)研究與應(yīng)用”(201103003,201503217)~~
【分類號】：S153;S513

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