<div><br></div><div><section class="_135editor" data-role="paragraph" style="font-size: medium; max-inline-size: 100%; margin: 0px; padding: 0px; border: 0px none; z-index: 0; overflow-wrap: break-word !important; outline: none 0px !important;"><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; font-size: 14px; overflow-wrap: break-word !important; outline: none 0px !important;">　　子棉采摘适时与否，对棉花质量和产量都有显著的影响。不要剥壳采摘，这样不仅收获困难和费工，而且纤维拉力弱，纺织工艺价值低，子棉含水量高，不及时晾晒容易发热变色。调查表明，棉铃开裂后７天采摘，纤维强度最高；吐絮１０天以后采摘，纤维强度开始下降；吐絮２５天以后采摘，纤维强度明显降低。所以生产上一般每隔７～１０天采摘一次为好。</span></p><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;"><br style="max-inline-size: 100%; margin: 0px; padding: 0px; overflow-wrap: break-word !important; outline: none 0px !important;"></p><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; font-size: 14px; overflow-wrap: break-word !important; outline: none 0px !important;">　　收花要做到“四分”、“四快”。“四分”就是将不同品质、不同用途的子棉分收、分晒、分藏、分售，要把留种棉与普通棉、正常吐絮棉与病虫僵瓣棉、白花与黄花、霜前花与霜后花、雨前花与淋雨花等，分别采摘收获，收回后再分开摊晒、储藏和出售，严防混杂。“四快”就是将已成熟的子棉快收、快晒、快拣、快售，一般在棉铃开裂７～１０天即应摘收，风雨来临前则应抢收。刚收获的子棉含水量较高，堆放后易使蜡质消失，色泽暗淡，甚至发热霉烂，影响种子发芽。所以收获后应尽快晒干，并边晒边拣，区分优劣，进一步提高品级，分拣好的子棉。</span></p><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;"><br style="max-inline-size: 100%; margin: 0px; padding: 0px; overflow-wrap: break-word !important; outline: none 0px !important;"></p><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; font-size: 14px; overflow-wrap: break-word !important; outline: none 0px !important;">　　当前，我国黄河与长江流域棉区所产原棉的“三丝”（异性、异形、异色纤维）含量超标问题比较突出，成为社会和纺织工业呼吁最强烈的问题之一。原棉中混入异性纤维将严重降低纺织产品的商品质量，纺织企业因使用异性纤维超标的原棉而造成出口产品退货甚至索赔的事件，每年都有发生。对此，广大棉农要进一步提高觉悟，从源头上有效杜绝异性纤维的混入，采摘棉花时要头戴白棉布帽，使用白棉布袋，严禁使用化纤包装物，晾晒棉花时严防畜禽进入和刮风污染，售棉时仔细挑拣“三丝”。</span></p><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;"><br style="max-inline-size: 100%; margin: 0px; padding: 0px; overflow-wrap: break-word !important; outline: none 0px !important;"></p></section><section class="_135editor" data-role="paragraph" id="autoparagraph" style="font-size: medium; max-inline-size: 100%; margin: 0px; padding: 0px; border: 0px none; z-index: 0; overflow-wrap: break-word !important; outline: none 0px !important;"><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;"><br style="max-inline-size: 100%; margin: 0px; padding: 0px; font-family: 微软雅黑, &quot;Microsoft YaHei&quot;, sans-serif; font-size: 17px; caret-color: rgb(255, 0, 0); overflow-wrap: break-word !important; outline: none 0px !important;"></p></section></div>