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甘肃省定西地区,位于黄河中游黄土丘陵沟壑区,气候干燥雨量稀少(年平均降雨量据靖远气象站十一年记录平均为237毫米,兰州气象台十九年记录平均为337.6毫米),水土流失严重,是著名的干旱山区。坡地占总耕地面积70%以上。春小麦是该地区主要作物之一,约占播种面积40%。因此,如何提高坡地春麦的产量,是当地农业增产中迫切需要解决的问题。作者自1955—1957年,对当地春麦增产中
The Dingxi area of Gansu Province is located in the loess hilly and gully area in the middle reaches of the Yellow River where rainfall is scarce (the average annual rainfall is 237 mm for the eleven years in Jingyuan Meteorological Station and 337.6 mm for Lanzhou Meteorological Observatory in the past nineteen years), soil erosion Seriously, is a famous arid mountainous area. Slope land accounts for more than 70% of the total arable land. Spring wheat is one of the main crops in the region, accounting for about 40% of the sown area. Therefore, how to improve the yield of spring wheat on sloping land is an urgent problem to be solved in the increase of local agriculture. From 1955 to 1957, the author increased production of local spring wheat