摘要
陕北黄土丘陵区春谷亩产200~250kg的限制因子是地力不足,管理粗放,密度偏低,降水利用率过低,而不是降水量不足。通过采用增产潜力大的旱地春谷品种,适期播种,科学施肥.防止生长后期脱肥,结合沟垄、水平沟、丰产沟等水土保持耕作法,推广宽行小株距种植,增加种植密度,以水、肥保密,使旱地春谷亩产从71~150kg提高到200~250kg,并达到稳产。
The major constraints to spring millet yield of 200~250kg/um are notthe rainfall sliortage but poor land fertility,rough management,low plant density,lowerrainfall use efficiency。 The yield of spriiig millet was greatly improved from the original71~150kg/mu to 200~250kg/mu,remaining stable throtigh the adoptation of such im-portaiit measures as usiiig rainfed land spring millet seeds with great yield potential,sowing in right time,scicntific fertilization,preventing fertilizer shortage in late stage,combining of stich coiiservation tillages as ridge and furrow cultivation,level ditch culti-vation,bumper harvest ditch cultivation with the extenision of broad row and narrowspacing planting,increasing plant density guaranteed with water and fertilizer。
出处
《干旱地区农业研究》
CSCD
北大核心
1996年第2期5-8,共4页
Agricultural Research in the Arid Areas
基金
国家"八五"科技攻关课题
关键词
谷子
旱地春谷
高产
栽培
陕北黄土丘陵区
Rainfed land spring millet
high-yielding
stable-yielding
cultivationtechnology
loess hilly regions in northern Shaanxi