论文部分内容阅读
蒲江县位于川西平原边缘丘陵地区,森林覆盖率高,日照少,雨日多,湿度大,宜于稻瘟病发生,加之近年来“汕优2号”单一种植,导致1984年稻瘟病大流行,24.7万亩水稻全部遭受危害,损失产量达七千万斤。1985年我们推广抗病高产良种“川植”品系,实种1.2万亩,搭配其它抗病、耐病良种共10.46万亩,占水稻面积的45.3％,使稻瘟病发病面积减少到12万亩,亩产由698斤,恢复到770斤,在面积比上年减少14,495亩的情况下,挽回产量损失663万斤,折合112.71万元,同时为1986年大面积种植“川植”品系提供了种源和栽培技术。
Pujiang County is located in the edge of the western Sichuan Plain hilly areas, high forest cover, less sunshine, rainy days and humidity, is suitable for the occurrence of rice blast, coupled with the recent “Shanyou 2” single planting, leading to the 1984 blast, All of 247,000 mu of rice are harmed and the yield lost to 70 million jin. In 1985, we promoted the “Sichuan-planting” line of disease-resistant and high-yielding elite, with an actual area of 12,000 mu. With a total of 104,600 mu of other resistant and disease-resistant varieties, accounting for 45.3% of the total area of rice, the disease area of rice blast was reduced to 120,000 mu. From 698 kg per mu to 770 kg, the area lost 6.63 million kg, equivalent to 1.1271 million yuan, in the area of 14,495 mu less than that in the previous year. At the same time, it provided species for planting large-scale “Chuanzhi” strains in 1986 Source and cultivation techniques.