摘要
甘肃省陇东和陇西黄土高原地区，是典型的半干旱、干旱农业区。该区降水量年内分配不均，７０％～８０％集中在７、８、９月份；土壤０ｃｍ～２０ｃｍ含水量，随相应时期降水多少而呈增减变化，春旱严重地威胁着该区的农业生产。总结旱作农区生产实践中的成功经验，大体形成了深翻蓄水保墒、坡改梯、旱地秋施肥、地膜覆盖等为中心的几种蓄水保墒培肥土壤的旱作技术措施，提高了自然降水和肥料的利用率，为该农区粮食生产的稳定发展起到了积极作用。
Based on the experiences and measures from production practice in dryland areas in Longdong and Longxi regions on Loess Plateau, several technical measures of moisture retention and fertility betterment centering on deep tillage for moisture retention, horizontal terrace, fall fertilization and mulching can make full use of natural rainfall and increase the efficiency of fertilizer, thus has played an active role the stable development of food production in the area.
出处
《干旱地区农业研究》
CSCD
北大核心
1998年第3期11-14,共4页
Agricultural Research in the Arid Areas
关键词
土壤
旱农
蓄水保墒
培肥
综合技术
dryland farming, moisture retention, fertility betterment, comprehensive technique
