Application of Organic Sources and Nitrogen affect dry matter partitioning in Wheat under Tillage Systems
Application of Organic Sources and Nitrogen affect dry matter partitioning in Wheat under Tillage Systems
Madeeha Alamzeb1, Shazma Anwar1, Asif Iqbal1,2*, Song Meizhen2, Mazhar Iqbal3, Sara4, Muhammad Ramzan2 and Afza Tabassum1
ABSTRACT
Organic manure and mineral nitrogen both plays an important role in improving soil fertility and crop productivity. Field experiment was conducted at The Agronomy Research Farm of The University of Agriculture Peshawar, during winter 2015 to investigate the effect of organic sources (cattle, sheep and poultry manure each at 5 t ha-1) and nitrogen levels (0, 75, 100, 125 and 150 kg ha-1) on dry matter partitioning of wheat under tillage systems (conventional and deep tillage). The experiment was laid out in randomized complete block design with split plot arrangement, having three replications. Tillage systems and organic sources were used as main plot factor, nitrogen levels as subplot factor. The results revealed that organic sources, nitrogen levels and tillage system significantly affected dry matter partitioning of wheat. Application of poultry manure improved dry matter partitioning into different plant parts at heading and physiological maturity as compared to sheep and cattle manure. Application of nitrogen at the higher rates (125 to 150 kg N ha-1) enhanced dry matter partitioning at heading and physiological maturity than lower N rates and control. Likewise, wheat sown with deep tillage system resulted in increased dry matter partitioning into different plant parts than conventional tillage system. We concluded from this study that integrated use of inorganic nitrogen (125 kg N ha-1) and poultry manure (5 ton ha-1) improve dry matter partitioning of wheat under deep tillage system.
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