PRODUCTIVITY OF MAIZE/SORGHUM MIXTURE AS AFFECTED BY CROP PROPORTION, STAND ARRANGEMENT AND MAIZE VARIETY
PRODUCTIVITY OF MAIZE/SORGHUM MIXTURE AS AFFECTED BY CROP PROPORTION, STAND ARRANGEMENT AND MAIZE VARIETY
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Date
1987-12
Authors
SANI, MOHAMMED CHOBE
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Abstract
A field experiment was conducted at Samaru farm of the
Institute for Agricultural Research in the 1984 and 1985 wet
seasons with the objective of studying the effect of
different proportions of component crops, stand arrangement
and maize variety on the productivity of maize/sorghum mixture.
Factorial combinations of three proportions (50:50; 67:33
and 95:25 of maize and sorghum respectively), two stand arrangements
(alternate and within ridge) and two maize varieties
of different maturity (TZB and TZE-SR-W) were laid out in a
randomized complete block design (RCBD) with four replications.
Increasing maize proportion in the mixture from 50:50
to 75:25 significantly increased the grain yield of maize,
while that of sorghum reduced significantly. The effect of
stand arrangement on the grain yield of maize was not
consistent. Maize in the within ridge arrangement outyielded
those in alternate ridges in the 1985 wet season but not in
1984. The performance of sorghum in alternate ridges appeared
better than in the within ridge arrangement.
Although, there was no significant difference in yield
between TZB and TZE-SR-W either in mixture or sole crops, crop
proportion 67:33 with TZE-SR-W as maize component gave the
highest yield advantage of 25% in 1984. In 1985, TZE-SR-W at
crop proportion 67:33 again produced the highest yield advantage
of 39%. Generally row arrangement did not seem to affect yield
advantage. In monetary terms only maize/sorghum mixture at crop
proportion 67:33 and 75:25 produced gross returns that were
consistently good as for sole maize but superior to that of
sole sorghum.
Description
A thesis submitted to the Postgraduate School
Ahmadu Bello University
In partial fulfillment of the requirements for
the degree of Master of Science in Agronomy
DEPARTMENT OF AGRONOMY
FACULTY OF AGRICULTURE
AHMADU BELLO UNIVERSITY
ZARIA, NIGERIA
DECEMBER, 1987
Keywords
PRODUCTIVITY,, MAIZE/SORGHUM MIXTURE,, AFFECTED,, PROPORTION,, MAIZE VARIETY