Effect of poultry manure and urea-n on flowering occurrence and leaf Productivity of <i>amaranthus cruentus</i>

Abstract

A field experiment was conducted during the dry season (December -March) in 2005 and 2006. To test the effect of poultry manure (PM) and urea -N on flower initiation and leaf yield of Amaranthus cruentus. Plants fertilized with sole poultry manure at 15 tonnes/ha were significantly (p = 0.05) tallest (90.6cm), while application of a mixture of 30 kg urea-N/ha and 15 tones/ha of poultry manure produced the higher number of leaves per plant (81.7), the largest leaf area (203.0 cm 2 ), highest number of branches per plant (16.0), longest vegetative life span (70 days after planting), highest fresh leaf mass (1.88 kg/plot), highest fresh stem mass (2.25 kg/plot) and highest fresh lead yield (12.20 tonnes/ha). This is an indication that combined application of 15 tonnes of poultry manure per hectare and 30 kg Urea-N/ha could prolong the vegetative phase thus, enhancing the leaf productivity of Amaranthus cruentus. @JASEM.

Effect of NPK and Poultry Manure on Growth, Yield, and Proximate Composition of Three Amaranths

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“…The use of mineral fertilizers to increase yield has been found to be effective only within few years, demanding consistent use on long term basis (Ojeniyi et al, 2009). The hazardous environmental consequences and high cost of mineral fertilizers make itundesirable but also uneconomical and out of reach of the poor farmers who still dominate in the Egyptian agriculture sector (Shiyam and Binang, 2011). This are led to increase use of organic manure, a readily available alternative, to be more environmentally friend.…”

Influence of ‘Lactobacillus serum’ on the growth of Amaranthus hybridus and some soil chemical properties under screen house conditions

“…The hazardous environmental consequences and high cost of inorganic fertilizers make them not only undesirable but also uneconomical and out of reach for the poor smallholder farmers who still dominate the Nigerian agricultural food production space (Shiyam and Binang, 2011). This has led to the increased use of organic manure, a readily available alternative, which proves to be more environmentally friendly, but the mineralization of these organic manure/ materials is slow, thereby resulting in a problem with the supply of nitrogen due to the high demand by the plant.…”