Urea And Kirinyuh Combination on Soil Fertility and Results of Land Kale
DOI:
https://doi.org/10.11594/nstp.2025.4908Keywords:
Fertilizer, Nitrogen, Land KaleAbstract
Plants require nitrogen to grow, which can be obtained from urea fertilizer or Kirinyuh organic fertilizer. A study was conducted using a Randomized Block Design to determine the appropriate amount of fertilizer needed to improve soil fertility and increase land kale yields. The study had five treatments: UK1 which used 100% Urea (15 g m-²), UK2 which used 50% Urea (7.5 g m-²) and 50% POC Kirinyuh (2.375 L m-²), UK3 which used 25% Urea (3.75 g m-²) and 75% POC Kirinyuh (1.1875 L m-²), UK4 which used 100% POC Kirinyuh (4.75 L m-²), and each treatment was repeated four times. The results showed that UK4 was better than the other treatments for almost all variables of soil chemical properties, except for total N. On the other hand, the UK3 treatment had the best effect on the total soil N variable and had the same value as UK4 for the soil CEC variable. For soil fertility status, a combination of fertilizer treatment (UK2 and UK3) and 100% POC Kirinyuh (UK4) had the best effect with a moderate status. Regarding crop yield, UK1 had the best effect but was not significant with UK2 in Land Kale Fresh Weight tan-1 (g). A combination of Urea and organic Kirinyuh fertilizer is the best way to meet plants' nitrogen needs and enhance soil fertility.
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