Article Per Year (5 Year)
p-Index From 2021 - 2026
0.444
P-Index
This Author published in this journals
All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) SINTA Journal (Science, Technology, and Agricultural)
Usman
Universitas Muhammadiyah Bengkulu
Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Education Environmental Science Materials Science & Nanotechnology Physics Veterinary

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Optimization of Growth and Yield of Several Varieties of Green Beans (Vigna Radiata L) Using Solid Oil Palm Waste on Red Yellow Podzolic Soil in Bengkulu Rita Hayati; Jafrizal; Yukiman Armadi; Neti Kesumawati; Usman
Jurnal Penelitian Pendidikan IPA Vol 11 No 6 (2025): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i6.11559

Abstract

This study aimed to evaluate the effects of solid oil palm waste application and mung bean (Vigna radiata L.) varietal differences on growth and yield performance in red-yellow podzolic soils in Bengkulu, Indonesia. A factorial experiment was conducted using a Randomized Block Design (RBD) with three replications. The two factors tested were four levels of solid waste application (0, 10, 15, and 20 tons/ha) and three mung bean varieties (Vima 2, Vima 4, and Vima 5). Data were analyzed using Analysis of Variance (ANOVA), followed by Duncan’s Multiple Range Test (DMRT) at a 5% significance level. The results showed that solid waste application significantly improved plant height, number of pods per plant, pod weight, and seed weight per plant. Variety also had a significant effect on plant height at 56 days after planting. No significant interaction was observed between the two factors. Overall, the application of 20 tons/ha of solid waste resulted in the highest improvements in agronomic parameters. Among the tested varieties, Vima 5 demonstrated the best overall performance. These findings suggest that using solid oil palm waste at an optimal dose can enhance mung bean productivity in red-yellow podzolic soils, supporting sustainable agricultural practices.
Effect Of Growing Medium Composition And Composting Duration Of Sea Casuarina Leaf Waste On The Growth And Yield Of Red Lettuce (Latuca sativa L. var. Red Rapid) Tegar D. Saputra; Usman; Jafrizal; Rita Hayati; Habiburahman
SINTA Journal (Science, Technology, and Agricultural) Vol. 7 No. 1 (2026)
Publisher : Perkumpulan Dosen Muda (PDM) Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37638/sinta.7.1.139-154

Abstract

This study aimed to determine the interaction and effects of growing media composition and composting duration of Australian pine (Casuarina equisetifolia L.) leaf waste on the growth and yield of red lettuce (Lactuca sativa L. var. Red Rapid), as well as to evaluate the potential use of Australian pine leaf waste as an alternative compost material. The experiment was arranged in a factorial Randomized Complete Block Design (RCBD) with two factors: growing media composition (K0 = 2:1:0, K1 = 2:1:1, K2 = 2:1:2, and K3 = 2:1:3) and composting duration (L1 = 14 days, L2 = 28 days, and L3 = 42 days). A total of 12 treatment combinations were replicated three times, resulting in 36 experimental units. The results showed that there was no significant interaction between the two factors, and the growing media composition had no significant effect on any of the observed parameters. In contrast, composting duration had significant to highly significant effects on plant height, number of leaves, canopy width, fresh weight, and yield per experimental unit. The 42-day composting treatment produced the highest fresh weight (72.05 g) and yield per experimental unit (215.83 g). In conclusion, composting duration played a more important role than growing media composition. A longer composting period produced more mature compost with greater nutrient availability, thereby enhancing the growth and yield of red lettuce.  
Co-Authors Habiburahman Jafrizal Jafrizal Neti Kesumawati, Neti Rita Hayati Tegar D. Saputra Yukiman Armadi