Effects of organic fertilizers on yam productivity and some soil properties of a nutrient-depleted tropical Alfisol

Agbede, T.M and Adekiya, A.O and Ogeh, J.S (2013) Effects of organic fertilizers on yam productivity and some soil properties of a nutrient-depleted tropical Alfisol. Archives of Agronomy and Soil Science, 59 (6). pp. 803-822.

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Abstract

Field experiments were conducted at Owo, southwest Nigeria to select organic fertilizer treatments most suitable for sustaining high soil fertility and yam productivity on a nutrient-depleted tropical Alfisol. Eight organic fertilizer treatments were applied at 20 t ha71 with a reference treatment inorganic fertilizer (NPK 15–15–15) at 400 kg ha71 and natural soil fertility (control), laid out in a randomized complete block design with three replications. Results showed that organic fertilizers significantly increased (p¼0.05) tuber weight and growth of yam, soil and leaf N, P, K, Ca and Mg, soil pH and organic C concentrations compared with the NSF (control). The oil palm bunch ashþ poultry manure treatment increased tuber weight, vine length, number of leaves and leaf area of yam by 66, 25, 21 and 52%, respectively, compared with inorganic fertilizer (NPK) and 37, 22, 19 and 44%, respectively, compared with poultry manure alone. Sole or mixed forms of organic fertilizers showed significant improvement in soil physical conditions compared with IF (NPK) and NSF (control). Synergistic use of oil palm bunch ashþpoultry manure at 10 t ha71 each was most effective for sustainable management of soils and for improving agronomic productivity of yam.

Item Type: Article
Subjects: S Agriculture > S Agriculture (General)
Depositing User: Dr Aruna Adekiya
Date Deposited: 13 Jul 2017 13:01
Last Modified: 13 Jul 2017 13:01
URI: http://eprints.lmu.edu.ng/id/eprint/908

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