Keywords = Rice
Effects of Rice Cultivation, Submergence, Sewage Sludge Compost and Chemical Fertilizers on Soil Solution,s pH, EC, Potassium and Sodium

Volume 23, Issue 3, October 2013, Pages 105-121

Nosratollah Najafi; Masomeh Abbasi; Naser Aliasgharzad; Shahin Oustan


Phosphorus Critical Concentration in Paddy Soils of Guilan Province

Volume 23, Issue 1, May 2013, Pages 123-134

Mitra Karimi Amir Kiasar; masoud Kavoosi; Hassan Shokri vahed