摘要
在莱阳等地对无水浇条件旱地冬小麦高额丰产栽培技术进行了田间试验研究。结果在年降水409.9～515.5mm,土层厚度1m左右,实行1年2作或2年3作的条件下,获得小麦大面积亩产达500kg,最高亩产616.3kg。高额丰产麦田土壤有机质含量在1％以上,全氮在0.08％以上,速效磷含量达10ppm以上;小麦生长期间耗水总量为215.4～444.4mm,耗水系数在0.7mm/kg·亩左右,最低达0.53mm/kg·亩。不同的栽培措施可显著影响水分利用效率而使产量有较大差异,在培肥地力的基础上,选用抗旱耐肥品种,防止麦苗早发早衰,可通过穗数及粒数在较大范围内同步增长而获得高额产量。
Field experiment for cultural practices of higher yield winter wheat was carried out on dry land without irrigation. The results show that on the condition of 409.9～515.5mm rainfall in a year, about 1m soil thickness, doubling cropping in a year or three cropping in two years, the yield of winter wheat could reach 500 kg per mu, and the highest yield was 616.3kg per mu. In the soil of higher yield, the content of soil organic matter was about 1%, total nitrogen was over 0.08%, rapidly available phosphorous was over 10ppm. The total water consumption in the period of wheat growth was 215.4～444.4mm. Water consumption coefficient was about 0.7mm/kg·mu, and the lowest was 0.53mm/kg·mu. Different cultivation methods could effect water use efficiency and made significant difference in wheat yield. On the base. of increasing soil fertility, selcting dry resistance and fertilizer tolerant variety, avoiding early growth and early senescence, higher yield could be obtained by means of synchronous increasing in the number of ear and grain in a large range.
出处
《莱阳农学院学报》
1990年第4期253-259,共7页
Journal of Laiyang Agricultural College
关键词
旱地
冬小麦
丰产
栽培技术
Winter wheat
dry land without irrigation
higher yield
cultural practices
