ABSTRACT The aim of this study were (1) to determine the effect of rice husk biochar and rice straw compost on growth and production rice (Oryza sativa) and (2) to determine the ability of rice husk biochar and rice straw compost in providing nutrients to Ultisol. The research was carried out February – July 2018 in Sungai Abang Village, Lubuk Alung Regency, Padang Pariaman. Research applied Random Group Design with 5 treatment : 0% Rice husk biochar + 0% Rice straw compost, 100% Rice husk biochar + 0% Rice straw compost, 75% Rice husk biochar + 25% Rice straw compost, 50% Biochar rice husk + 50% Rice straw compost and 25% Rice husk biochar + 75% Rice straw compost. Observations were made on soil and crops including initial soil analyzes ie before treatment was given, soil analysis after incubation, and final soil analysis (pH, N-total, P-available, K-dd, Ca-dd, Mg-dd and Sulfur) and plant observations include plant height, the productive of tiller, total of tiller and weight of grain per hectare. From the research that has been done can be concluded (1) the use of rice husk biochar and rice straw compost affect the growth and production of rice plants seen in the treatment of 75% rice husk biochar + 25% Rice Straw rice husk biochar with the number of productive tillers of 29 tillers and production of rice plants as much as 8,238 tons / ha and (2) the use of rice husk biochar and rice straw compost is able to provide nutrients in Ultisol indicated by increasing pH, N, P, K, Ca, Mg and S.
Penelitian ini bertujuan untuk mengetahui interaksi pengaruh Sediaan Salut dan Pupuk Organik Cair Unitas Super terhadap pertumbuhan dan hasil kedelai (Glycine max.L Merril). Penelitian ini menggunakan rancangan acak lengkap yang disusun secara faktorial dengan 2 perlakuan dan 3 ulangan. Faktor pertama sediaan salut terdiri atas 2 taraf yaitu tanpa salut SO (kontrol) dan S1 (1kg tanah + 1kg kompos + 100gr kapur +0,5 kg tanah bekas tanam kedelai + 10 gr pupuk PK), faktor ke 2 adalah aplikasi POC yang terdiri atas 4 taraf yaitu 0 ml/L,10ml/L,20 ml/L,30 ml/L. Hasil penelitian yang telah dilakukan menunjukkan bahwa pemberian tanpa Salut dan POC US pada taraf 30 ml/L dapat meningkatkan tinggi tanaman, rasio tajuk akar, dan bobot 100 biji.Key words : kedelai, salut, pupuk organik cair
Food is a necessity for all residents in both rural and urban areas so that food availability must be guaranteed to meet the needs of all residents. Several government programs have been carried out to achieve food self-sufficiency, especially rice, corn and soybeans. This study aims to (1) identify the leading food commodities in the city in West Sumatra Province. (2) analyzing the specialization and localization of superior food commodities in the city in West Sumatra Province. (3) identifying priority food commodities that can be developed in urban areas in West Sumatra Province. This research was conducted in (7) seven urban areas in West Sumatra Province. This study uses secondary data which includes production, price and production value. The results of the analysis showed that (1) only rice commodities became the main commodity in all urban areas, (2) pajale commodities spread in several districts in all urban areas, (3) and only rice commodities became priority commodities in several urban areas. So that the development of food commodities in urban areas in West Sumatra Province can be prioritized on rice commodities to meet the food needs of its population.
Abstract. Hermawan B, Suhartoyo H, Sulistyo B, Murcitro BG, Herman W. 2020. Diversity of soil organic carbon and water characteristics under different vegetation types in northern Bengkulu, Indonesia. Biodiversitas 21: 1793-1799. Organic carbon and water characteristics are important soil properties that can easily degrade following the conversion of forest to cultivation land, but their levels of degradation depend on successive vegetation types after deforestation. The research aimed to evaluate the spatial diversity of soil organic carbon (SOC) and water characteristics on sites with annual and cash crops, as well as natural vegetation types. Forty-two undisturbed and disturbed soil samples were collected at 0-10 and 10-20 cm depths from plantation areas (rubber and oil palm), rice fields, shrub land, and grassland in Mukomuko, North Bengkulu, and Central Bengkulu Regencies of Bengkulu Province, Indonesia. Vegetation types were observed, and soil water characteristics were determined using a pressure plate apparatus unit from undisturbed soil samples, while SOC and particle-size distribution were analyzed from disturbed soil samples. The uppermost 10 cm soil layers were dominated by organic-C intervals of more than 3.0% while the 10-20 cm depths had intervals of less than 3.0%. Soils under oil palm and rice production had higher SOC of above 6.0% and water availability at the field capacity of 0.4-0.6 g g-1, particularly at 0-10 cm depths, while those under rubber and grass had a lower status of measured variables, particularly at 10-20 cm depth. There was a strong relationship (R2 = 0.63) between the soil organic carbon and water availability among study soils, suggesting the possibility to predict potential soil water deficits from organic matter status.
The objective was to examine the phenomenon of physical and chemical properties of soil which is used as a center of agricultural cultivation in supporting food security in West Sumatra. The experiment was conducted by survey to various locations by taking composite soil samples in the field. Some types of soil taken include Histosol from Anai Padang Pariaman; Ultsiol from Lubuk Minturun; Inceptisol from Limau Manis and Siteba city of Padang; Andisol from Danau Kembar and Lembah gumanti Kab. Solok. The result was can be concluded that Ultisol Lubuk Minturun more potency for tropical fruits. Andisol in Lembah Gumanti and Danau Kembar Kab. Solok has decreased its chemical quality. It is necessary to increase soil pH to be suitable for the development of vegetable crops and food crops. The use of lime and organic matter in a proper fertilizing package can reduce the use of heavy fertilizer for vegetable crops and horticultura. Histosol utilization for wetland rice cultivation needs to be careful because the acidic pH and the number of organic acids are toxic. Inceptisol Limau Manis Padang has a neutral pH, and is very good for developing food cultivation in support of food security in West Sumatra.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.