發(fā)布時間：2018-07-29 10:36

【摘要】：為了進一步明確瑪納斯河流域土壤質地對機采棉水熱狀況及生長發(fā)育的影響,通過測坑試驗,對3種不同土壤質地(壤土、砂土、黏土)下的土壤溫度、土壤含水率、機采棉、株高、葉面積及產(chǎn)量進行了對比分析。結果表明,不同土壤質地條件下地溫日變化及不同時間段溫度增量表現(xiàn)為:砂土黏土壤土;不同土壤質地條件下0~60 cm和0~100 cm土層土壤質量含水率大小順序為:黏土壤土砂土;不同土壤質地下機采棉的生長及產(chǎn)量均表現(xiàn)為壤土黏土砂土。研究認為壤土質地種植機采棉,提高了其生育前期的土壤溫度,有效保持了土壤水分,有利于其生長發(fā)育。因此,為了提高水分利用效率及產(chǎn)量,建議瑪納斯河流域應增加壤土質地種植機采棉的比例。
[Abstract]:In order to further clarify the effect of soil texture on water and heat status and growth and development of mechanized cotton in Manas River Basin, soil temperature, soil moisture content and cotton harvesting under three different soil textures (loam, sand and clay) were measured by pit test. Plant height, leaf area and yield were compared and analyzed. The results showed that the diurnal variation of soil temperature and the temperature increment in different time periods under different soil texture conditions were as follows: sandy clay loam, soil quality moisture content of 0 ~ 60 cm and 0 ~ 100 cm soil layer under different soil texture conditions were in the order of clay loam sandy soil. The growth and yield of cotton picking under different soil textures were shown as loam clay sand. The results showed that the soil temperature was increased and soil moisture was maintained effectively, which was beneficial to the growth and development of loam soil. Therefore, in order to improve water use efficiency and yield, it is suggested that the proportion of loam texture planter should be increased in Manas River Basin.
【作者單位】： 石河子大學水利建筑工程學院;現(xiàn)代節(jié)水灌溉兵團重點實驗室;
【基金】：國家自然科學基金項目(51669030) NSFC-新疆聯(lián)合基金項目(U1203282)
【分類號】：S152;S562

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