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宣汉县烟叶研究所从1983年以来先后在五宝、西北乡采用磷酸二氢钾对“白花铁杆子”晒烟进行根外追肥试验。实验结果表明,喷施了磷酸二氢钾的晒烟亩产390.75公斤,比未喷施的提高22％,亩产收入528元,增值43％。近三年在全县大面积推广,1986年推广面积达8.920亩,据大面积抽样调查,新增烟叶25万公斤,增加经济收益32万元。最近,经县科委和地区有关单位签定,认为这是一项值碍推广的增产措施。
Xuanhan County Institute of Tobacco has been in five treasures since 1983, Northwest Township, using potassium dihydrogen phosphate on the “white iron rod” sun-cured tobacco top-dressing trials. The experimental results show that spraying of potassium dihydrogen phosphate per mu sunburn 390.75 kg, 22% higher than the non-sprayed, 528 yuan per mu income, value-added 43%. The past three years in the county large area promotion, promotion area of 8.920 acres in 1986, according to a large area sample survey, add tobacco 250,000 kilograms, an increase of economic benefits 320,000 yuan. Recently, the county Science and Technology Commission and the relevant units in the region signed, that this is a barrier to promote the stimulation of production.