ワ彳一12条播机,是1956年从西安引进的。截止1963年底,全区保有量达1,399台。共中除山区有180台外,绝大部分集中在引黄灌区11个县(市)。几年来,我们曾对条播机的使用情况作了些调查;1963年3月和9月,由区科委、工业厅、供销社、农科所、农机局以及银川机械修配厂组成的区试 A 12 seed drill was introduced from Xi’an in 1956. By the end of 1963, the region had a total of 1,399 units. In addition to a total of 180 units in the mountains, the vast majority concentrated in the Yellow River irrigated 11 counties (cities). In the past few years, we conducted some surveys on the use of seed drill; in March and September 1963, a district test consisting of the District Science and Technology Commission, the Industrial Department, the Supply and Marketing Cooperatives, the Agricultural Science Institute, the Agricultural Machinery Bureau and the Yinchuan Machinery Repair Factory