PJB-2020-210
GROWTH AND YIELD ATTRIBUTES OF SOLANUM TUBEROSUM L. AS INFLUENCED BY SOIL SOLARIZATION AND COMPOST/COMPOST TEA AMENDMENT UNDER FIELD CONDITIONS
TOUKAM TAKOUKAM STEVE
Abstract
Field trials were conducted at Dang-Ngaoundere, aiming at evaluating the influence of solarization, compost/compost tea on growth and yield of irish potato (Solanum tuberosum L.) plants. Experiment was laid out on 145.75 m² (26.5× 5.5) area, in a complete randomized block design comprising 8 treatments repeated three times each. As the results, soil solarization improved the physico-chemical properties of soil. The produced compost used had a pH toward the neutrality (6.63), and was rich in organic matter (18.78%), all favorable for plant growth. Soil amended with compost increased germination rate of plants (61.11%), while treatment solarized soil + compost contributed to more shootings emmergence per plant (7) compared to other treatments. Soil solarized, amended with compost and spread with compost tea resulted in increasing plant height (42.13 cm) and induced early flowering (6 days before the control). The average length of tubers per plant was higher for compost + compost tea treatment. Moreover, average tubers diameter per plant (6.03 cm), the fresh average tuber weight per plant (1.58±0.41 Kg) and the yield per hectare(27.84±1.02 t/ha) were higher in solarized soil + compost + compost tea treatment than in other treatments, and particularly the control (10.95±0.13 t/ha). As outcome of this study, soil solarization + compost + compost tea treatment should be recommended to farmers of the growing areas for a healthy and sustainable production of irish potato. Key words: Solarization, compost, compost tea, Solanum tuberosum L., growth, yield.
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