IMPACT OF Tithonia diversifolia AS GREEN MANURE AMENDMENT ON YIELD AND YIELD ATTRIBUTES OF MAIZE (Zea mays.)
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Abstract
Manures improve soil fertility and crop yield; however, the optimum rate and method of application are important. This experiment was conducted to determine the impact of different rates and modes of application of Tithonia diversifolia on the yield and yield component of two maize varieties. The trial was conducted at the Teaching and Research Farm of the, (federal university, Oye Ekiti, Nigeria during the 2020 and 2021 cropping seasons). The experiment was laid out in a factorial arrangement fitted into a randomized complete block design replicated 3 times. The trial comprised of two maize varieties (LNTP-W and SAUWUAZ), two methods of application of Tithonia diversifolia amendments (chopped and and unchopped). Grain yield and yield components were measured. The result showed that significant difference (P < 0.01) was observed among the maize varieties for number of seeds per cob, 100 seed weight and grain yield. Also the status of amendments showed significant (P < 0.01) impact on cob length while the quantity of the amendment also had significant (P < 0.01) impact on the number of rows per cob, number of seeds per cob, 100 seed weight and grain yield in both years. Significant (P < 0.01) interaction was observed between the maize varieties and quantity of amendments used. Also the status of the amendment x quantity had significant (P < 0.01) impact on the number of rows per cob. However, varieties x status x quantity showed significant impact on the number of seeds per row and number of seeds per cob in 2021.
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References
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