تلخیص
Long term field experiments on grain and fodder crops at Livestock Research Station, Surezai, Peshawar (rainfed area), NWFP, Pakistan, located at 33o 45’ N and 70o 50’ E at an altitude of 525 m were initiated during 2004-05 with the objective to improve/sustain soil fertility, water/soil conservation, and efficient utilization of production inputs. The treatments consisted of three rotations: i) cereal– fallow-cereal (farmers’ practice) ii) cereal-legume-cereal and iii) cereal-cereal-cereal with two tillage treatments: i) Tillage (-crop residues) and tillage (+ crop residues) and ii) no-tillage (-crop residues) and no-tillage (+ crop residues). Basal dose of N60: P60 (kg ha-1) was applied to wheat and oat crops in grain and fodder rotation experiments, respectively. In this paper the result regarding the tillage effect on yield and WUE of wheat and oat are summarized. The pre sowing soil analyses of experimental field indicated that it was clay loam, non saline, calcareous and alkaline in reaction, low in O.M, deficient in N and P. The results obtained so far revealed that almost similar wheat grain, biological and oat fodder yields and water use efficiency were obtained under tillage and no-tillage system. The soil moisture contents data recorded at different growth stages of wheat indicated that similar moisture content in 0-30 cm upper soil was recorded in the tillage and no-tillage treatments. However at lower depth (30-90 cm) the zero tillage treatment at seedling, 1st tillering, 2nd tillering, booting, anthesis, milk development and maturity stages contained 30.4, 24.15, 25.73, 13.81, 44.2, 32.0, 9.65 mm more water in the soil profile than tillage treatments, respectively.
Wisal Mohammad, , S. Mahmood Shah, , Samreen Shehzadi, , S. Azam Shah , Haq Nawaz* . (2006) Wheat and oat yields and water use efficiency as influenced by tillage under rainfed condition, The Journal Soil & Environment , Volume 25, Issue 1.
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