河南省是全国重点产棉省分之一,棉田面积占全国第二位。然而平均皮棉单产不高,历来多在25斤上下。因此,棉花生产上存在着很大的潜力。在全面贯彻“农业八字宪法”增产棉花的技术措施中,适期播种能够充分利用生长季节,促使棉花早发育,多结桃,早成熟,是提高产量和品质的有效措施。“清明早,小滿迟、谷雨立夏正当时”这句关于棉花的农谚,說明我省已往棉花播种期多在谷雨(4月20日左右)以后。由于棉花播种偏迟,現蕾开花晚,成鈴少、成熟迟、以致产量不高。解放以来,特別是从1956年推广新疆先进植棉技术以后,全省各主要棉区将棉花播种期由4月下旬到5月上旬提早到4月上、中旬,在增产棉花方面取得 Henan Province is one of the key cotton-producing provinces in the country with the cotton area accounting for the second largest in the country. However, average lint yield is not high, always more than 25 pounds. Therefore, there is great potential for cotton production. In the full implementation of the “agricultural Character Eight Constitution” to increase cotton production, the appropriate sowing can make full use of the growing season, to promote early cotton development, more fruiting, early maturity, is an effective measure to improve yield and quality. “Qingming morning, a small full late, Gu Yu Li Xia is the time” phrase on cotton farming proverb, indicating that the province has more cotton sowing in Guyu (April 20 or so) later. Due to the late sowing of cotton, budding flowering late, less bell, maturity, resulting in low yield. Since the liberation, especially since 1956 to promote advanced cotton planting in Xinjiang, the province’s major cotton areas cotton sowing period from late April to early May early early April, mid-yield cotton increased