摘要
研究了北疆高产棉花（皮棉１８００ｋｇ·ｈｍ－２）干物质积累的过程，结果表明，棉花干物质积累过程可用Ｌｏｇｉｓｔｉｃ曲线方程表达；根据干物质积累规律，把干物质积累速率曲线上的两个特征点之间的区域称为干物质积累的“关键时期”，通过计算，干物质积累的关键时期出现在７月上旬至８月中旬，这时玛河流域棉区棉株生长正处于花铃期，从而为加强花铃期田间管理提供了依据。在高密度条件下，地上部总干物质、茎叶干物质积累的最快时期提前出现，关键时期有提早趋势。
High yield cotton field (1 800kg Lint Yield/hm 2)was planted in North Xinjiang to study the process of cotton dry matter accumulation The results indicated that the accumulating process of matter was suitable for Logistic curve equation According to the accumulating law of dry matter,the area between the two characteristic points on the accumulating rate curve of dry matter was called the crucial stage of dry matter accumulation By calculation,the crucial stage of dry matter accumulation appeared between the first ten days of July and the second ten days of August During this period the cotton in Manasi river valley was in flower and boll stage And thus provided useful basis for improving the management in flower and boll stage
出处
《石河子大学学报（自然科学版）》
CAS
1998年第2期87-92,共6页
Journal of Shihezi University(Natural Science)
