K. Agyarko

Sweet Potato (Ipomoea batatas) Yield Parameters, Soil Chemical Properties and Cost Benefit Ratios Following Incorporation of Poultry Manure and Inorganic NPK Fertilizers in Low Nutrient Ghanaian Soils

K. Agyarko, H. K. Dapaah, S. Buah & K. A. Frimpong · International Journal of Plant & Soil Science · 2013

The impact of sole poultry manure (6t PM ha-1), sole NPK (200kg NPK ha-1) and their combinations (3t PM + 100kg NPK ha-1 and 1.5t PM + 150kg NPK ha-1) on sweet potato yield parameters and soil nutrients was assessed at Adiembra and Fiaso in Ghana between June, 2011 to November, 2...

Open access Research Article 10.9734/IJPSS/2014/4305

Influence of Grasscutter, Chicken Manure and NPK Fertilizer on the Physical Properties of a Chromic Luvisol, Growth and Yield of Carrot (Daucus carota)

K. Atakora, K. Agyarko & E. K. Asiedu · International Journal of Plant & Soil Science · 2013

A field experiment was conducted to evaluate the effect of grasscutter manure (GM), chicken manure (CM), and NPK on soil physical properties, growth and yield of carrot. The treatments were; no fertilizer or manure (control), 300kgNPK/ha (15:15:15), 10tCM/ha, 3 levels of grasscut...

Open access Research Article 10.9734/IJPSS/2014/6426