The Influence of a Combination of Cow Manure and Banana Stem on the Growth and the Result of Sweet Potato (Ipomoea Batatas (L) Lamb) in Ancient Planting Method

Abstract

Indonesian farmers depend on chemical fertilizers. It is necessary to change the planting system to improve soil conditions. This research aimed to determine the influence of a combination of cow manure and banana stem on the growth and the result of sweet potato plants in ancient planting methods. The research was conducted in the rice fields of Sarwadadi Village, Talun District, Cirebon Regency, from May to September 2023. The experimental design used was a Randomized Group Design (RAK), which consisted of 16 treatments, and each factor was repeated twice. The treatment is as follows: (1) A: CM 0 tons/ha and BS 0 tons/ha; (2) B: CM 0 tons/ha and BS 10 tons/ha; (3) C: CM 0 ton/ha and BS 15 tons/ha; (4) D: CM 0 tons/ha and BS 20 tons/ha; (5) E: CM 10 tons/ha and BS 0 tons/ha; (6) F: CM 10 tons/ha and BS 10 tons/ha; (7) G: CM 10 tons/ha and BS 15 tons/ha; (8) H: CM 10 tons/ha and BS 20 tons/ha; (9) I: CM 15 tons/ha and BS 0 tons/ha; (10) A: CM 15 tons/ha and BS 10 tons/ha; (11) K: CM 15 tons/ha and BS 15 tons/ha; (12) L: CM 15 tons/ha and BS 20 tons/ha; (13) M: CM 20 tons/ha and BS 0 tons/ha; (14) N: CM 20 tons/ha and BS 10 tons/ha; (15) O: CM 20 tons/ha and BS 15 tons/ha; (16) P: CM 20 tons/ha and BS 20 tons/ha. The parameters observed in this study were stem length, number of leaves, stem diameter, leaf area index, root volume, root length, tuber diameter, tuber volume, tuber weight per cluster and tuber weight per plot. The resulting data was then analyzed using ANOVA, Scott Knott's advanced test at the 5% level. The results of the research show that (1) the combination of cow manure and banana stem organic matter has a significant effect on leaf area index, root length, tuber weight yield per hill and tuber weight per plot, and (2) the Combination of 20 tons/ha fertilizer treatment and banana stem organic material of 20 tons/ha produced the best effect on tuber weight per plot of 33.53 kg/plot or equivalent to 44.71 tons/ha.