【作者】 林永增； 李伟明； 李志峰； 王志忠； 王树林；

【Author】 Lin yongzeng, Li weiming , Li zhifeng , Wang zhizhong , Wang shulin (Cotton institute, Hebei academy of agriculture and forestry sciences, Shijiazhuang 050051)

【机构】 河北省农林科学院棉花研究所；

【摘要】 北方旱地棉区位于黄河流域北部,干燥度1.2-1.6,年降水500mm左右,4-10月日照时数1400-1900小时;由于干燥度大、温光条件优越具有生产优质原棉的潜力,棉花纤维品质指标间比较协调,品级高,含杂少。而干旱发生频率高、土壤瘠薄不利于棉花高产稳产,旱地棉花比国内其它棉区产量略低,远高于世界同类棉区。棉花产业存在棉花纤维内在品质高、加工品质差,高等级原棉外流、棉纺平均纱支低,高支纱和精梳纱外销多、低档棉纺织品比重大等不协调状况;棉区进一步改造,应加强棉田灌溉和节水等基础设施,优化纤维(品种)品质布局,提高原棉品质一致性,近期突出中长绒棉生产。该区趋向成为我国中高档纱(40-60支)用棉最重要的生产基地。更多还原

【Abstract】 The area of northern dry land cotton locates the northern part of Yellow river valley, with aridity 1.2 - 1.6, the year precipitation about 500 mm are or so, sunshine 1400 - 1900 hours during April -October;so superior to have the cotton fiber quality potential. Because of the high frequency dry weather and thin soil fertility, the cotton yield was slightly lower than that in local area, but far higher than that of the same kind cotton areas in other countries. The northern dry land is becoming the most important base to produce quality lint for 40-60count yarn.更多还原