| dc.description.abstract | This study aims to analyze the effect of various types of manure on the
growth of rice (Oryza sativa L.), soybeans (Glycine max L.) and pakcoy
(Brassica rapa L.), as well as to provide practical recommendations for the use of
manure in supporting sustainable and environmentally friendly agriculture. This
research was conducted at the Faculty of Agriculture of the University of North
Sumatra from july 2024 to December 2024. The study employed a Non-Factorial
Randomized Block Design with treatments including chicken manure 20 tons/ha,
sheep manure 20 tons/ha, chicken manure 20 tons/ha + sheep manure 20 tons/ha,
chicken manure 15 tons/ha + sheep manure 15 tons/ha, and chicken manure 10
tons/ha + sheep manure 10 tons/ha. The results showed that the response of rice
plants to chicken manure and sheep manure had a significant effect on plant height,
number of leaves, number of tillers, biomass weight, and fresh weight of the canopy,
but had no significant effect on fresh root weight. The best treatment for rice plants
was obtained with a combination of 20 tons/ha of chicken manure and 20 tons/ha
of sheep manure. A different response was obtained for soybean plants, where the
application of chicken manure and sheep manure had a significant effect on plant
height and number of soybean leaves at 3-5 weeks after sowing. The combination
treatment of 20 tons/ha of chicken manure and 20 tons/ha of sheep manure showed
the highest yield, but did not have a significant effect on biomass weight, fresh
weight of the canopy, and fresh weight of the roots. The response of pakcoy plants
to the application of various doses of chicken manure and sheep manure did not
have a significant effect on plant height, number of leaves, biomass weight, fresh
shoot weight, or fresh root weight of pakcoy plants. | en_US |
