我省小麦低产田中面积最大的是旱薄地,大约有一千多万亩,占全省麦田面积的20％,平均单产只有200斤左右。除平原旱薄地以外多分布在太行山和伏牛山的丘陵地带,岭高坡陡,水土流失严重,蓄水保墒能力很差。丘陵地区年降雨量虽有500—800毫米,但在小麦生育期间降雨量仅200多毫米。干旱是影响小麦增产的主要障碍。丘陵旱地一般是人少地多,劳畜力不足,运输困难,施肥少,耕作粗放,土壤脊薄,这也是小麦低产的重要因素。据芦氏、嵩县、三门峡市土壤普查结果,有机质含量多在百分之一以下,有效氮在百万分之四十以下,速效磷在百万分之三以下。又因干旱条件限制,仅有 The largest area of ​​low-yield wheat in our province is dryland, with about 10 million mu, accounting for 20% of the province’s wheat field, with an average yield of only about 200 kilos. In addition to dry plains beyond the plains in the Taihang Mountains and Funiu Mountain hills, steep ridge, soil erosion, water storage capacity is poor. The annual rainfall in the hilly area ranges from 500 to 800 millimeters, but only over 200 millimeters of rainfall during wheat growth. Drought is a major obstacle to increasing wheat production. Hilly drylands are generally less land and more labor shortage, transport difficulties, less fertilization, extensive farming, soil ridge thin, which is an important factor in low-yield wheat. According to the results of the Census of Loess, Songxian and Sanmenxia, ​​the content of organic matter is mostly below one percent, the effective nitrogen is below forty millionths and the available phosphorus is below three millionths. Due to drought conditions, only