ارزیابی مدیریت بقایا و خاک ورزی حفاظتی بر کارکرد دو نظام تناوبی منطقه معتدل سرداستان خراسان رضوی

This research is a part of 5-years project that is conducted to compare conservation and conventional
agricultural methods and their effects on crops yield and agronomical characteristics in local conventional
rotation system (Wheat – Maize – Wheat – Melon – Wheat ) . This study is about maize related to the second
year, that was conducted as split-plot in Randomized Complete Block Design with three replications in
Torogh agricultural research station, in 2013. Experimental treatments were various tillage methods in three
levels (main plot), and plant residual management in three levels (sub plot). The results showed both
treatments significantly effected on the most considered characteristics such as plant height, LAI, plant
density and silage yield. Our research showed that minimum tillage system with saved %30 plant residual is
recommended to increase yield (about %13) and stable production.