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为了探索山区水地春麦大面积均衡增产途径,在小面积丰产试验的基础上,于1979～1981年进行了大面积均衡增产技术研究。试验设在清水河流域清惠灌区的黑城公社团庄四队。该地在固原属温和区,土地平坦,土壤为淡黑垆土,适合于春小麦的生长,但肥力较差。春小麦在3月中旬播种,4月10日左右出苗,7月20日左右成熟,生育期105～110天。由于生育进程较快,有效分蘖率只有0.02～0.65,增产只能依靠主穗,后期灌浆落黄差,千粒重常在40克以下。
In order to explore a large-area and balanced production increase of spring wheat in mountainous water area, a large-area and balanced production increase technique was studied from 1979 to 1981 on the basis of small-area high-yield test. The experiment is located in Qinghui irrigation area Qinghui irrigation black regiment team four teams. The land in the solid part of the genus is mild, flat land, the soil is light black soil, suitable for the growth of spring wheat, but poor fertility. Spring wheat sowing in mid-March, about April 10 emergence, about July 20 maturity, the growth period of 105 to 110 days. As the fertility process faster, the effective tillering rate of only 0.02 ~ 0.65, the increase can only rely on the main spike, the late drop of yellow grouting, 1000 weight often less than 40 grams.