EFFECT OF POULTRY MANURE RATES ON CHLOROPHYLL CONTENT AND FRESH WEIGHT OF THREE AMARANTH VARIETIES IN KANO, NIGERIA
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Abstract
A 4 x 3 factorial pot experiment arranged in a Completely Randomized Design (CRD) was conducted at the Teaching and Research Farm of the Faculty of Agriculture, Bayero University, Kano to examine the effect of poultry manure at different rates (0, 10, 20 and 30 t/ha) and 3 varieties of Amaranth (Hemera, White and Black Amaranth), on the chlorophyll content and fresh weight of the plant. A chlorophyll content meter was used to measure chlorophyll content in Amaranth at different growth stages, indicating photosynthetic activity related to leaf nitrogen concentration. The fresh weight of the leafy plant was also measured at harvest (7 Weeks after
Sowing). Data were analyzed using Analysis of Variance (ANOVA) in Statistical Analysis Software (SAS) version 9.4. Means were compared using the Duncan Multiple Range Test (DMRT). There was a significant difference in poultry manure rates at 10 and 20 t/ha for fresh weight, while 30 t/ha gave higher chlorophyll content, and no significant interaction was observed for chlorophyll content. While the yield (fresh weight) shows a significant difference (p < 0.05) among the amaranth varieties, the Hemera variety has significantly more weight than the Black and White varieties, with no significant difference observed due to poultry manure rates. The
Hemera variety, with no poultry manure application, can benefit vegetable farmers in the study area.
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