Research Papers/Topics in Crop Production And Horticulture

Response of Onion (Allium cepa L.) to Bulb Size at Planting and NPK 15:15:15 Fertilizer Application Rate in the Guinea Savannah Agroecology of Ghana

Studies were conducted during the 2013 and 2014 cropping seasons at the research field of the University for Development Studies, Nyankpala in the Northern Region of Ghana to determine the effects of bulb size at planting and NPK 15:15:15 application rate on growth and yield of onion. The NPK 15:15:15 was applied at the rate of 0 (control), 80, 165 and 250 kg/ha. Three different bulb sizes: small (2.5-3.5 cm), medium (4.5-5.5 cm) and large (6.5-8.5 cm) were used. The treatment combinati...

Comparative Study of the Emergence and Growth of Young Seedlings of Five Varieties of Pistachio (Pistacia Vera L.) of Syrian Origins

The present work is to study the emergence and growth of seedlings of five pistachio varieties that are: Batouri, Achouri, Neb-Djemel, Adjmi and Bayadhi. The study was conducted in a greenhouse temperature and photoperiod were controlled. The seeds are germinated in pots filled with peat without going through the damp cold stratification at a temperature of 4ºC. The results obtained showed that growth parameters (length and diameter of the plants) revealed significant tests while other p...

EVALUATION OF THE POWDER OF Piper guineense AND Pirimiphos-methyl FOR THE CONTROL OF COWPEA STORAGE WEEVILS (Callosobruchusmaculatus)

ABSTRACTThe insecticidal effects of Piper guineense and Pirimiphos-methyl was evaluated on cowpea. The treatments used were P. guineenseat 0.2, 0.4, 0.6, 0.8, and 1g as well as Pirimiphos-methyl at 0.1g per 20g of cowpea seeds, each laid out in Complete Randomized Design (CRD) in the laboratory. Results indicated that P. guineense at 1g   concentration   significantly   (P