Four field experiments were carried out at Gemmieza Agricultural Experimental Research Station, AL-Gharbia Governorate during the four seasons of winter, 2012/2013, summer 2013, winter 2013/2014 and summer 2014 under exhausted clay soil condition to study the effect of three different tillage systems (conventional tillage (CT), conservation agriculture (CA) and semi-CA (SCA)) and two levels of NPK fertilizers (100% of the recommended doses of NPK and 1/2 recommended doses of it) on yield and its components of wheat (Gemmeiza-9 variety) and soybean (Giza-111 variety) through (maize–wheat–soybean–wheat–soybean) (M/W/S/W/S) cropping system.
Website: http://www.arjonline.org/agricultural-sciences/american-research-journal-of-agriculture/
Website: http://www.arjonline.org/agricultural-sciences/american-research-journal-of-agriculture/
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