Abstract
<p>This study aims to determine the effect of bio-slurry fertilizer application on the vegetative growth of green mustard plant (<em>Brassica juncea l.</em>)</p><p>The research was conducted at Jalan Karya Kasih, Gang sawah, Medan Johor Sub-district, Medan at least ± 30 m above sea level. The research was conducted from June 2020 to July 2020.</p><p>The materials used in this study were green mustard seeds, top soil taken from the from Medan Johor sub-district, Medan City, Manure in the form of cow dung and goat manure which were used as basic ingredients for bio-Sllury and M-Bio fertilizers as pro- biotok for making Bio-Sllury compost and 10 kg polybags.</p><p>There are lots of tools such as Hands prayer s, hoes, machetes, chainsaws, title boards, plot boards and treatment boards, speed and stationery</p><p>This study used a factorial randomized design consisting of 2 factors and 3 replications, namely: Factor I. Bio-Slurry fertilizer from cow dung (L), consisting of three levels, namely; L0 = Without Application of Cow Manure = 0 ton/ha or 0 g/Polybag ; L1 = 10 tons/ha or 40 g/Polybag; L2 = 20 ton/ha or 80 g/Polybag . Factor II. Bio-Slurry Fertilizer from Goat Manure (K) which consists of three levels, namely; K0 = Without Goat Manure = 0 ton/ha or 0 g/Polybag ; K1 = 10 tons/ha or 40 g/Polybag; K2 = 20 ton/ha or 80 g/Polybag . Thus there are 9 treatment combinations. 3 replicates and 27 polybag.</p><p>The implementation of the research includes: soil preparation, planting seeds, fertilization and harvesting while plant maintenance includes: insertion, giving water, weeding and controlling pests and disease.</p><p>Observation variables include: plant height (cm), number of leaves (strands), and wet weight (g). Furthermore, if the results of the research test show a significant difference from the treatment being tried, it can be continued with the Honest Average Difference (DMRT) test method.</p>
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