论文部分内容阅读
酒泉市是甘肃省的棉花生产区,棉花播种面积4.7万hm2,约占全省的95%左右。2003年从新疆引进棉花膜下滴灌技术在敦煌进行试验示范,面积20hm2。示范区棉花每667m2平均单产从300kg,提高到350kg,增产15%;棉花全生育期的用水量每667m2,从原来的580～600m3,下降为280～300m3,节水50%;
Jiuquan is a cotton production area in Gansu Province. Cotton sown area is 47,000 hm2, accounting for about 95% of the province’s total. In 2003 the introduction of cotton membrane drip irrigation technology in Xinjiang in Dunhuang pilot demonstration, an area of 20hm2. The average yield of cotton per 667m2 in the demonstration zone increased from 300kg to 350kg and the yield increased by 15%. The water consumption during the whole growing period of cotton dropped from 580 ~ 600m3 to 280 ~ 300m3 per 667m2, saving 50% water.