榆林地区历来有种植水稻的习惯,但由于以往品种老、病害重、作务粗,单产一直不高,常年亩产仅一、二百斤。1976年榆林县鱼河农场从宁夏省引进了育卷秧技术,当年试种卷秧稻23.7亩,平均亩产600斤,其中8.4亩“京引39”亩产达到842.5斤,较直播稻亩产200斤增产三倍多。1977年扩大到150亩,平均亩产610斤;1978年又扩大到300亩,亩产提高到630斤。鱼河农场连年增产的事实,证明育卷秧是水稻增产的有效措施。1979年春季,榆林地区农业 The Yulin region has always had the habit of planting rice. However, due to the old varieties, heavy diseases and rough work, the yield per head has not been high. Only one or two hundred jin of peas are produced per mu. In 1976, Yulinhe Farm introduced the technique of cultivating seedling from Ningxia Province. In that year, it experimented on 23.7 mu of rolled rice with an average yield of 600 kg per mu, of which 8.4 mu was “Jingyin 39” per mu reaching 842.5 kg, Yield 200 kg more than tripled. In 1977, it was expanded to 150 mu with an average yield of 610 jin. In 1978, it was expanded to 300 mu and the yield per mu was raised to 630 jin. The fact that fish-river farms have been increasing year by year has proved that the cultivation of seedlings is an effective measure to increase the yield of rice. Spring 1979, Yulin area agriculture