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All Journal Jurnal Ilmu-Ilmu Pertanian Indonesia TERRA : Journal of Land Restoration Journal of Agriculture and Animal Science
Muamar Kadafi
Faculty Of Agricultural Science And Technology, Universitas Teknologi Sumbawa, Indonesia
Agriculture, Biological Sciences & Forestry

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THE GROWTH OF SORGHUM TYPES (Sorghum bicolor L. Moench) TREATED ORGANIC FERTILIZER IN DRYLAND Syahrul; Muamar Kadafi; Ayu Purnamasari; Alfassabiq Khairi
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 26 No 2 (2024)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.26.2.114-122

Abstract

Sumbawa Regency exhibits relatively dry soil characteristics due to limited water availability resulting from low rainfall levels. One of the plants suitable for cultivation in this area is sorghum. Sorghum is a viable alternative to rice and corn, as its seed market price is comparatively high. In addition to the limited rainfall in this region, farmers have faced challenges in optimizing crop yields to meet the nutritional needs of their plants. One approach is to optimize the utilization of inorganic and organic fertilizers as supplementary complex plant nutrients. The proposed approach involves using appropriately dosed organic fertilizers, which is anticipated to diminish reliance on excessive inorganic fertilizers. This study aimed to determine the effect of different doses of organic fertilizers on various varieties of sorghum in dryland plantations located in Sumbawa Regency. The experimental design used was Split Plot Design, with sorghum varieties (Bioguma, GBE Methane, and Sweetbetty) as the main-plot and organic fertilizer doses (0, 50, 100, and 200 g/plant) as sub-plots. The results of this study indicated that the interaction between varieties and organic fertilizers on plant growth promotes an increase in plant height, stem diameter, number of leaves, and leaf length. At the end of the plant height observation (42–49 days after sowing), the combination of treatments resulted in an increase in plant height. During the initial growth phases, certain variables showed responses in terms of leaf quantity (7 and 28 days after sowing) and leaf length (14–28 days after sowing). Sweetbetty and GBE Methane show enhanced plant growth; Sweetbetty shows higher plant height and leaf quantity, whereas GBE Methane demonstrates optimal stem diameter and leaf length, compared to Bioguma (a variety from Indonesia
Yield Performance of Sorghum Varieties Treated With Organic Fertilizer in Sumbawa Regency Bajhir , Yusuf; Kadafi , Muamar; Purnamasari , Ayu; Khairi, Alfassabiq
TERRA : Journal of Land Restoration Vol. 8 No. 1 (2025)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/terra.8.1.50-56

Abstract

Sorghum is an ancient grain that has good performance and adaptation in extreme condition. The crop is a stress-resilient crop with highly productive NADP-ME type C4 photosynthesis and highly efficient nitrogen and water utilization. Sorghum also requires relatively less water than other important cereals such as maize and wheat. Sorghum cultivation is very suitable to be carried out in Sumbawa Regency because it has the characteristic of low rainfall. The most common obstacle that occurs in sorghum cultivation is not being able to maximize plant genetics and existing nutrients, so that plant yields are low. One of them is by applying organic fertilizer. The interest in the use of organic fertilizers is increasing due to polluting effects of chemical fertilizers in the aerial and soil environment and gradual decline in the soil fertility. The aim of this study was to determine the yield of plants with different doses of organic fertilizers and sorghum varieties in Sumbawa Regency. This research used Split Plot Design consisting of two plots. The main plot three sorghum varieties were evaluated including V1 = Bioguma, V2 = GBE Methane, and V3 = Sweetbetty. The subplot is the application of solid organic fertilizer including T0 = control, T1 = 50 g plant-1, T2 = 100 g plant-1, and T3 = 200 g plant-1. This study had 3 replications and 36 experimental units. The results show that organic fertilizer application doses can cause significant differences in root weight, dry weight, fresh weight, grain weight/plant, weight 1000 grains, productivity, panicle length, and flowering age. Then, different types of sorghum also cause significant differences in grain weight per plant, weight of 1000 grains, and productivity. The best productivity is found at 200 g plant-1 of organic fertilizer. Optimal fertilizer application produces better grain.  
Respons Pertumbuhan Awal Tebu (Saccharum officinarum L.) pada Berbagai Posisi Bagal Batang dalam Perbanyakan Vegetatif Refki Sanjaya; Retno Wulan Sari; Muamar Kadafi
AgriMalS Vol 6 No 1 (2026): Volume 6 Nomor 1 Tahun 2026
Publisher : Universitas Muhammadiyah Kotabumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47637/agrimals.v6i1.2248

Abstract

Sugarcane (Saccharum officinarum L.) is a strategic plantation crop contributing significantly to global sugar production. Early growth performance is a critical phase determining stand establishment and subsequent productivity, particularly in vegetative propagation systems using stem cuttings (setts). This study aimed to evaluate the early growth performance of the RGM 1010 Cultivar of sugarcane based on different stem sett positions (top, middle, and bottom) using a Randomized Complete Block Design with four replications. The experiment was conducted from July 2025 to January 2026 at the Experimental Farm of Politeknik Negeri Lampung, Indonesia. Observed parameters up to 10 weeks after planting (WAP) included survival percentage, plant height, number of leaves, leaf length, and number of internodes. Analysis of variance at the 5% significance level showed that sett position significantly affected survival percentage and plant height. The top setts produced the highest survival rate (92.5%) and plant height (153.5 cm), followed by middle and bottom setts. In contrast, number of leaves, leaf length, and number of internodes were not significantly influenced by sett position. Pearson correlation analysis revealed a weak and non-significant negative relationship (r = –0.324) between plant height and leaf number, indicating that stem elongation and leaf formation were relatively independent during early growth. The superior performance of top setts is attributed to higher meristematic activity and hormonal balance, promoting faster shoot and root initiation. Overall, while all sett positions were viable for vegetative propagation, top setts demonstrated better early vigor, providing practical implications for improving seedling establishment efficiency in sugarcane cultivation.
Co-Authors Alfassabiq Khairi Ayu Purnamasari Bajhir , Yusuf Khairi, Alfassabiq Purnamasari , Ayu Refki Sanjaya Retno Wulan Sari Syahrul