Enrichment of growing media using biochar, compost, and nanosilica for the cultivation of Oryza sativa L.

anglais. Received: August 1st, 2022 ; Accepted: September 12th, 2022 ; Published: September 12th, 2022 ; Correspondence: [email protected]

anglais. This study investigated the effect of growing media composition on the growth andproductivity of Oryza sativa var. Inpago 7 cultivated in polybags at Sumedang, West Java,Indonesia, for 126 days. A randomized block design was applied with nine combinations ofgrowing media. Each treatment consisted of five polybags and was replicated three times. Plantheight, number of leaves, and tillers were measured at 15, 30, and 45 days after transplanting toobserve the growth parameters. While, for estimation of productivity were recorded the weightof dry grain harvest (DGH), the weight of dry milled grain (DMG), and the weight of 100 grains (g)were recorded for each treatment for estimation of productivity. The results showed that the highestnumber of panicles (24 panicles per plant), the weight of dry harvested grain (21.74 g per plant),and weight of dry milled grain (17.83 g per plant) were obtained when cultivated with a growingmedium containing soil, biochar, synthetic fertilizer, urea and sprayed with nano-silica. Thegrowing media composition did not influence the weight of 100 grains because it is more influencedby genetic characteristics. An appropriate combination of soil, biochar, synthetic fertilizer, urea,and sprayed with nano-silica is recommended as a growing media for cultivating O. sativa L. var.Inpago 7.