【摘要】 2003~2005年,在山西省吕梁市5个县(区)的旱地玉米进行了聚肥集流蓄水改土耕作技术的应用研究,同时与机械起垄覆膜播种、人工起垄种植、常规地种植做了比较分析,结果表明:应用该技术可以使作物耕层土壤有机质含量提高162%,全氮、全磷提高58.6%、53.7%,速效氮、速效磷提高66.1%、50.4%。4~9月,0~80 cm土壤水分含量比对照高33.35%;0~40 cm根层地温比对照高13.99%,年终作物总生物量比对照高59.26%,产量高62.03%。显示了该技术在干旱半干旱地区的强大威力。更多还原

【Abstract】 In 2003～2005,a research about the use of farming technology of fertilizer gathering and rainfall conservation was made to improve soil of arid maize in five areas of Lvliang City,at the same time,a comparison analysis is made among mechanical ridge-forming sowing with mulch,man-made ridge-forming planting,and common planting.Compared with CK,soil organic material raised by 162%,total nitrogen,total phosphorus,available nitrogen and available phosphorus raised by 58.6%,53.7%,66.1% and 50.4% respectively,and in April to September,0～80 cm soil layer the water content is raised by 33.35%,and 0～40 cm soil temperature is raised by 13.99%,the biomass of annual crop is 59.26% and the yield is 62.03% more than CK,the result shows that the technology is very useful in arid and semi-arid area.更多还原