Romanian Agricultural Research · 2013 · 10 citations · 14 references
AgricultureAgronomySoil SciencesNutrient ManagementSoil FertilitySoil ScienceNutrient AvailabilityNutrient BalancePhosphorus ManagementPhosphorus NutritionSoil Nutrient AvailabilitySoil-plant Nutrient RelationsFoliar Nutrient ApplicationHigh-yielding VarietiesNutrient Balance AnalysisPhosphorus FertilizationPhosphorus RequirementSoil Phosphorus AvailabilitySoil Solution PhosphorusSoil-crop Nutrient Balance
Soil nutrient mining is major threat to modern agriculture as soil fertility is continuously depleting as a result of cultivation of high yielding varieties. Field experiments were conducted at two locations for two years to study the effect of different levels of phosphorus and sulphur application on dry matter yield, soil nutrient balance and soil fertility status under chickpea (Cicer arietinum) monocropping. The treatments included three levels of phosphorus (0, 17 and 34 kg P ha -1 ) and three levels of sulphur (0, 15 and 30 kg ha -1 ) from two sulphur sources (gypsum and ammonium sulphate). Phosphorus and sulphur application resulted in increase in dry matter yield up to 27 and 10%, respectively. Inorganic nutrient application resulted in increase of nitrogen deficit in soil at the end of two year experiment. Soil phosphorus and sulphur balance at the end of experiment was positive in all the treatments, except control. Higher level of nutrient (34 kg P and 30 kg S ha -1 ) should be applied to chickpea in order to maintain soil fertility status and to get crop yield on sustainable basis.
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