Jurnal Lahan Suboptimal : Journal of Suboptimal Lands
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Adaptability of the Prospective of IPB Cayenne Pepper Varieties (Capsicum frutescens L.) in South Sumatra Tidal Lands
No full textAdaptability of the prospective of IPB cayenne pepper varieties in tidal lands of South Sumatra was carried out from July 2020 to February 2021 in Banyu Urip Village, Tanjung Lago Subdistrict, Banyuasin District, South Sumatra. The research aimed to obtain prospective varieties that potential to be developed in tidal lands. The test used a Randomized Block Design with 3 replications. The treatment consisted of 5 prospective varieties of IPB cayenne pepper (F10-145291-10-7-1- 1-2-1-3B, F11-145291-115-15-8-1-1-2-5-3B, F11-160291-3-12-5-51-1-1-2-2-B, F8-145291-14-9-3-12- 1B, F10-145174-9-71-5-3-1-2B) and 5 commercial varieties (Harita, Gennie, Bara, Lentera, Baskara) as comparing varieties. Chilli was planted on a plot of 3 m x 5 m with a spacing of 60 cm x 70 cm. The analysis of variance used the F test and the HSD follow-up test. Prospective varieties of IPB cayenne pepper F8-145291-14-9-3-12-1B, F11-160291-3-12-5-51-1-1-2-2-B and F10-145291-10-7-1-1-2-1-3B had the potential to be developed in tidal lands of South Sumatra with respective productivity of 7.89 t/ha, 7.82 t/ha and 7.21 t/ha
Laying Eggs of Pomacea canaliculata L. on Oryza sativa L. in Various Ways of Plant Cultivation in Village Tulus Ayu, Sub District Belitang
No full textRice is a widely cultivated crop in Indonesia that the crop becomes a food crop with many pests and diseases. As happen in Belitang, the area many rice cultivation infested by golden snails because Belitang is a center of rice production with the biggest irrigation structure in the region. The golden snails prefer to live in submerged areas. Furthermore, the snail produces a high number of eggs in one ovulation which may produce a high number of golden snails and cause serious damage on rice to mage harvest failure. The research of this know the number of eggs packets of golden snails laid in two rice cultivations with different ages and varieties. The method applied in the study was a survey method for which samples were taken purposively, by following certain intervals in every row of rice plants. The observation was made to calculate the number of snail egg packets. The result showed that in the two different rice cultivation there were different numbers of snail egg packets. The difference might be caused by different environmental factors between both locations where a lower water surface caused a higher number of snail eggs.
Correlation Between Soil Nitrogen Content and NDVI Derived from Sentinel-2A Satellite Imagery
No full textThe United Nations Educational, Scientific, and Cultural Organization (UNESCO) has recognized the Balinese agricultural irrigation system known as subak as part of the world's cultural heritage. Subak is the driver of Bali’s agricultural and tourism sectors and, therefore, must be preserved. Population growth triggers the conversions of land functions, from subak to built-up lands, such as those transpiring in Denpasar City. On the other hand, with the population continuously increasing, the demand for food becomes inevitably higher. This has caused farmers to intensify their agricultural practices through, for instance, applying chemical fertilizers excessively-potentially decreasing soil fertility. An example is urea fertilizer that contains a macronutrient, i.e., nitrogen (N). This study aimed to analyze the soil N content and its correlation with rice growth using the Normalized Difference Vegetation Index (NDVI). The Kjeldahl method was conducted to measure the N levels in the soil laboratory. NDVI was extracted from remote sensing data, namely Sentinel-2A imagery, on a cloud computing platform, Google Earth Engine (GEE), using Band 8 (NIR) with a wavelength of 0.842 m and Band 4 (Red) with 0.665 m. The results showed that the N levels varied from 0.09% to 0.31% and the average NDVI values ranged from 0.47 to 0.54. There is a strong correlation (r = 0.75 to 0.78) between the NDVI values derived from the Sentinel-2A Satellite Imagery and the soil nitrogen content. Spatially, based on the analysis results of the 2019‒2021 data, parts of existing subak systems, i.e., Subak Kerdung, Mergaya, Padanggalak, and Sembung, have high soil N contents and NDVI values
Study The Integrated Pest Management on Chili Cultivation to Control Aphis gossypii and Bemisia tabaci
No full textThis study was carried out to build an IPM model on chili plants to control Aphis gossypii and Bemisia tabaci. The study was conducted at the Experimental Garden of the Faculty of Agriculture, Jambi University from May to September 2018. The study was designed with two treatments, namely; The application of the chili IPM model to control A. gossypii and B. tabaci and conventional chili cultivation (chili cultivation practice by farmers), each on an area of 0.25 ha. Observation parameters were: population of A. gossypii, population of B. tabaci, attack of A. gossypii and B. tabaci and attack of virus . The data obtained were tabulated and calculated the percentage of A. gossypii and B. tabaci attacks, virus attacks on chili and analyzed descriptively. The results of the study showed that: 1) the initial investment of A. gossypii and B. tabaci in chili plants both on IPM and conventional land was seen in chili plants 4 weeks after planting (WAP); 2) Populations of A. gossypii and populations of B. tabaci on chili plants with the application of the IPM model up to 7 WAP end to increase, but after 7 WAP the pest population is depressed and tends to decrease rapidly. It can be concluded that the IPM model with components of chili seed selection from the field, planting corn as hedges and planting refugia can suppress the development of A. gossypii, B. tabaci and virus attacks on chili plants. 
Re-utilization of Sub-optimal Used-planting Media to Cultivate Black Rice in the Pot
No full textBeside reducing production cost, re-utilization sub-optimal used planting media was environmentally good practice, especially when the plants were cultivated in the pots. This research incorporated black rice accession that had high economic value. The plants were cultivated in 10-kg pots, arranging in Randomized Block Design with three replications, each consisted of 5 pots. The treatments were weight-based additions of local organic soil and commercial organic fertilizer of 5 %, 10 %, 15 %, and 0 % (no-addition). Result of this research indicated that 10 % addition of local organic soil was considered enough to cultivated black rice in the pots. The plants were observed to grow normal with plant height reached 150 cm, consisted of 70 clumps and produced 56.52 g dry seeds per pot, equivalent to 11.69 ton per ha. In percentage, addition of 5, 10 and 15 % local organic soil, resulted in 33-53 % increase in number of mature panicles, 33-56 % increase in total number of seeds, 123-232 % increase in number pithy seeds, and 106-289 % increase in weight of dry seeds per pot
Increasing Paddy Productivity in Tidal Low Lands of South Sumatra through the Implementation of New Superior Varieties and Amator
No full textEfforts to increase the productivity of lowland paddy in tidal low land can be conducted through improving planting methods and the use of new superior varieties (NSV). This study aimed to find out the effect of using Amator on the cultivation of new high yielding varieties (NSV) in tidal paddy fields. This study used a Split Plot design, with the main plots namely planting equipment: using Amator and Sonor, and as subplots using NSV paddy: Hipa-18, Hipa-20, Hipa-21, and Inpari 22, with 3 replications. The results showed that the average productivity of NSV paddy using Amator was 5.2 t/ha, while that of Sonor reached 6.5 t/ha. Hybrid varieties (Hipa 18, Hipa 20, Hipa 21) grown using Amator produced taller paddy plants, more tillers and longer panicles than the inbred variety (Inpari 22) grown with Sonor. The productivity of the four NSV paddy tested gave a fairly high GDH (Grain Dry Harvest) yield of 5.6 – 6.2 t/ha
Factors Affecting Broiler Breeders Following the Partnership Pattern in Gelumbang Subdistrict, Muara Enim District (An Anthropological Sociological Approach)
No full textThe partnership pattern is one of the choices of business patterns faced by boiler breeders. This study aimed to describe and analyze the factors influencing the breeders to decide to follow the partnership pattern, calculate and compare the income of broiler farming business through partnership and independent patterns and analyze the perceptions of broiler breeders on the pattern to be applied to the next business cycle. The method used in this research was a survey method and stratified random sampling. The results of the study showed that the factors of venture capital, skills, result marketing and risk of loss, the marketing factor of the results were the most significant factors affecting the decision of farmers to follow the partnership pattern. It was found that the partnership pattern provided an average profit of Rp. 40,138,384.88 higher than the independent business pattern which was only Rp. 33,029,505.00 in one production period. When viewed in terms of Return Cost Ratio (R/C), livestock business through a partnership pattern was 1.19, lower than the R/C independent livestock business with a value of 1.20. Meanwhile, for the Food Conversion Ratio (FCR), both partnership and independent livestock businesses had the same value, namely 1.26. When viewed from the performance index, the livestock business through the partnership pattern had an IP of 4.25 greater in value when compared to the independent business pattern which was only 4.19. The breeders following the partnership pattern tended to decide to continue to follow the partnership pattern even though they had sufficient capital and skills, afforded to market their products independently, and faced their own risks.
Keywords: breeders perception, partnership pattern, determinants of decision maker
Growth of Pakcoy (Brassica rapa L.) Hydroponic System Using Nutrients of Catfish Cultivation Waste
No full textOrganic hydroponic cultivation systems require substitute nutrients other than inorganic fertilizers as a source of plant nutrients. Catfish cultivation waste is one of the potentials that can be used as hydroponic nutrients. This study aimed to find out the concentration of Liquid Organic Fertilizer (LOF) from fish cultivation waste as a substitute for commercial inorganic nutrients on the growth of pakcoy (Brassica rapa L.). This research was carried out in 2 stages, namely the manufacture of LOF from catfish culture waste and experiments using LOF as hydroponic nutrients. The results of this study showed that the increase in LOF nutrient content in anaerobic fermentation was higher than in aerobic fermentation. The use of LOF as a hydroponic nutrient, based on the parameters of plant height, number of leaves, SPAD value, root weight, crown weight, and dry weight obtained a smaller value that was significantly different compared to the inorganic nutrient treatment of AB mix. LOF concentration of 20%, both fermented aerobically and anaerobically, gave better growth when compared to higher concentration treatments. The nutrient content in LOF is difficult to adjust to the needs of hydroponic pakcoy, so that it will have a toxic impact on macro nutrients on the other hand, it also provides a response to micro nutrient deficiency
Potential to Increase Production and Income of Farmers of Freshwater Swamp Riceland in Gandus District, Palembang Regency
No full textGandus District, Palembang Regency has 1,017.255 hectares of rice fields, most of which are spread in Pulokerto Village, which was a rice field with a freshwater swamp typology. Statistical data shows that rice productivity in Palembang Regency (4.4 tons/ha) was still low when compared to South Sumatra Province rice productivity (4.89 tons/ha) and national rice productivity (5.13 tons/ha). The writing of this article aimed to provide an overview of the potential for increasing the production and income of farmers in Gandus District, Palembang Regency. The potential for increased production can be analyzed by considering the productivity gap between rice productivity in Palembang Regency, provincial and national rice productivity, with intensification to increase productivity and increasing planting intensity to increase planted area. Agricultural intensification can be done through the use of superior seeds, proper fertilization, control of plant pests and diseases, and counseling to convey innovation and technology. Meanwhile, increasing cropping intensity by improving the irrigation system. With the increase in productivity and planting intensity, it can contribute to increasing the income and welfare of farmers in Pulokerto Village, Gandus District, Palembang Regency
Evaluation of the Chemical Quality of Based Rations Guinea Grass (Panicum maximum) through Combination of Different Swamp Forages
No full textSwamp forage has the potential as an alternative feed for ruminants. This study aimed to evaluate the chemical quality of Guinea grass (Panicum maximum) based rations through a combination of different types of swamp forage. This research was conducted for 3 months at the Animal Feed Nutrition Laboratory, Faculty of Agriculture, Sriwijaya University. The design used in this study was a completely randomized design (CRD) consisting of 4 treatments and 4 replications. The treatments consisted of R0 (70% Guinea grass + 30% Concentrate), R1 (40% Guinea grass + 30% water mimosa + 30% Concentrate), R2 (40% Guinea grass + 30% giant molesta + 30% Concentrate), R3 (40% Guinea grass + 30% water chestnut + 30% Concentrate). The variables observed were dry matter (DM), organic matter (OM), crude protein (CP), crude fiber (CF), extract ether (EE), tannin and saponins. The results showed that the treatment had a significant effect (P < 0.05) on the content of DM, OM, CP, CF, Tannins and Saponins, while the extract ether content had no significant effect (P > 0.05). Furthermore, highest DM (82.45%), OM (76.96%) and CP (16.35% were obtained in R1, CF (22.34%) in R0. Tannin best concentration (1.09%) in R3 and saponins (2.16%) in R1. The conclusion of this study showed that the combination of 40% Guinea grass + 30% water mimosa + 30% concentrate could improve the chemical quality of the ration