global-journal-of-science-frontier-research-d-agriculture-veterinary Global Journal of Science Frontier Research - D: Agriculture & Veterinary 0975-5896 2249-4626 Global Journals Publishing Group Incorporated 58253 Combined Effect of Doses of Fertilizers and Different Densities on Agronomic Parameters of Rice (Oryza sativa) Adapted on Humid Area on the Valley of Benoué-Cameroon Fertilizer and Density Effects on Nerica L36 Rice Wang-BaraBertrand KaouvonPhilémon BiyackCyrille Woulbo DjeoufoYvonne CAMEROON 06 05 2023 23 D2 33 39

Study was realized on July 2021, inside of the Institute of Agricultural Research for Development (IRAD). Main objective of study is to determine the dose of mineral fertilizers and densities which responses well to the rice culture especially of the variety Nerica L36 in a humid area of the valley of Benoué. Treatments are constituted of fourth levels of doses and repeated 3 times: T1 (0 kg NPKSB+100 Kg Urea/ha); T2 (150 kg NPKSB+100 Kg Urea/ha); T3 (200 kg NPKSB+100 Kg Urea/ha; T4 (250 kg NPKSB+100 Kg Urea/ha). Three densities were considered: De1=20 cm x 20 cm; De2=25cm x 25cm; De3=30 cm x 30 cm. Experimental design was a split-plot, with two factors: Factor 1 concerning dose of fertilizers and Factor 2 concerning variety of Rice (Nerica L36). Evaluation parameters were: the height of plant, the number of tillers, the number of panicles/plants, panicles length, heading date at 80 % and maturity date.

 planting density rice doses mineral fertilizers yields. Full Text

Study was realized on July 2021, inside of the Institute of Agricultural Research for Development (IRAD). Main objective of study is to determine the dose of mineral fertilizers and densities which responses well to the rice culture especially of the variety Nerica L36 in a humid area of the valley of Benoué. Treatments are constituted of fourth levels of doses and repeated 3 times: