ESTIMATION OF FRUIT YIELD AND PARASITIC NEMATODES IN IRRIGATED TOMATO FIELD TREATED WITH ORGANIC AMENDMENTS AND MINERAL FERTILIZER
Keywords:
Organic Amendments, NPK, Parasitic Nematode Population, TomatoAbstract
Field experiments were carried out at the irrigation research station, Kadawain the Sudan Savanna Zone of Nigeria to estimate tomato fruit yield during the 2007/2008, 2008/09 and 2009/2010 dry seasons and population of plant parasitic nematodes during the 2008/09 and 2009/2010 dry seasons in irrigated tomato field treated with organic amendments and mineral fertilizer (NPK). There were thirty six treatments made up of factorial combinations of three sources of organic manure; urban waste, neem based and poultry manure each at three levels (50, 100 and 150 kg N ha-1 equivalent) and four levels of inorganic compound fertilizer NPK (0, 150, 300 and 450 kg ha-1). The treatments were laid out in a split plot design replicated three times. The combinations of manure sources and manure rates were assigned to the main plots while inorganic fertilizer rates were assigned to the sub plots. Results revealed that application of poultry manure at the highest rate of 150 kg N ha-1equivalent combined with 450 kg ha-1NPK resulted in the highest total fruit yield. Plant parasitic nematodes population was higher at mid sampling period than at the initial or harvest periods
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