玉米秸秆还田免耕栽培试验

为进一步完善玉米免耕栽培技术,集成适合马山县实际的多样化玉米免耕栽培技术模式,从2004年下半年至2007年上半年,连续3年6造进行玉米秸秆还田免耕栽培试验,结果表明,玉米秸秆还田免耕栽培具有改善土壤理化性状、培肥地力、减少水土流失、降低劳动强度和生产成本、提高玉米产量等作用;秸秆还田免耕栽培玉米平均产量达6965kg/hm2,比常耕栽培增产229kg/hm2,增产7.2%,平均节本增收1223元/hm2.

Maize straw-returning to field with no-tillage cultivation techniques

In order to improve the no-tillage cultivation techniques for maize,different types of no-tillage cultivation models for maize were integrated according to the practical situation of Mashan County.From the second half year of 2004 to the first half year of 2007,the maize straw-returning to field with no-tillage cultivation was carried out for six cropping seasons in three years.The results showed that maize straw-returning with no-tillage cultivation could improve the physical-chemical characteristics of soil and soil fertility,reduce soil erosion,decrease the labor intensity and production costs and increase the yield of maize,etc.The yield of maize reached 6965 kg/hm2 on avarage,and it increased 229kg/hm2over the conventional tillage with an increase rate of 7.2%;the average increasing income and saving costs was 1223 yuan RMB/hm2.Therefore,it had significant social economic benefits.