乐亭县汤家河镇南张庄村科技示范户“植棉能手”杨风茹,几年来依靠科学技术,种植地膜棉,棉花产量逐年提高,效益不断增加。1990年种植5亩“辽棉9号”,亩产皮棉60公斤,1991年种植8亩,全部地膜覆盖,药剂包衣,品种为“辽无2152”,亩产皮棉119公斤。1992年植棉10亩,在遇到历史罕见的棉铃虫大灾的情况下,仍获得了亩产皮棉93.5公斤的好收成。1993年利用果树空间采用单行密植和地膜覆盖技术,亩产皮棉达140公斤。 Laoting County Tang Jiahe Town, South Zhangzhuang village technology demonstration households “cotton transplant expert” Yang Fengru, relying on science and technology over the past few years, planting cotton membrane, cotton production increased year by year, the benefits continue to increase. In 1990, 5 mu of “Liaomian 9” was planted, with 60 kg of lint per mu. In 1991, it was planted with 8 mu. All mulches were covered with medicament and coated with “Liaowu 2152” and 119 kg of lint per mu. In 1992, planting 10 acres of cotton, in the face of a rare case of history of the bollworm catastrophe, still received 93.5 kg per mu yield of good harvest. In 1993, the use of fruit trees in a single row close planting and mulching techniques, per mu yield of up to 140 kg of cotton.