Effect of rock phosphate based compost and biofertilizer on uptake of nutrients, nutrient use efficiency and yield of cotton

Abstract

Phosphorus deficiency in alkaline and calcareous soils is a worldwide burning issue. The use of mineral phosphatic fertilizers is quite popular throughout the world to cope with this deficiency. However, efficient use of these phosphatic fertilizers is still questionable. A study was conducted to improve the efficiency of these mineral phosphatic fertilizers using phosphorus-solubilizing bacteria (PSB) and phosphorus enriched compost (PEC) in cotton. Results showed that integrated use of PSB and PEC in different combinations improved nutrient use efficiency, growth and seed-cotton yield compared to alone application of single super phosphate (SSP). Significant improvement in morphological characteristics of cotton were recorded due to combinations of PSB and PEC with SSP.

Keywords

• efficient use of these phosphatic fertilizers is still questionable. A study was conducted to improve the efficiency of these mineral phosphatic fertilizers using phosphorus-solubilizing bacteria (PSB) and phosphorus enriched compost (PEC) in cotton. Results showed that integrated use of PSB and PEC in different combinations improved nutrient use efficiency
• Cotton
• organic farming
• phosphorus management