H. Gusmara, Ricci Handoko Silitonga, B. W. Simanihuruk
{"title":"Growth Response and Yield of Sweet Corn on Palm Oil Sludge and Dolomite in Ultisols","authors":"H. Gusmara, Ricci Handoko Silitonga, B. W. Simanihuruk","doi":"10.31186/terra.3.1.1-9","DOIUrl":"https://doi.org/10.31186/terra.3.1.1-9","url":null,"abstract":"Sweet corn is a very popular agricultural commodity in Indonesia, so the production of sweet corn needs to be increased. One of the problems that often encountered in the field is the lack of availability of fertile land that can support the growth of sweet corn. Therefore it needs technology to increase land productivity. In this case, the use of palm oil sludge as a source of organic matter and dolomite as a material that can improve soil fertility. The purpose of this research is to get the dosage of palm oil sludge and dolomite that optimal for the growth and yield of sweet corn. This research was conducted from December 2017 to March 2018 in Air Sebakul Village, Talang Empat Subdistrict, Central Bengkulu using Randomized Completely Block Design with two treatment factors. The first factor is the dosage of palm oil sludge consisting of three levels, namely 0 tons ha-1, 10 tons ha-1, and 20 tons ha-1. The second factor is dolomite dosage consisting of four levels, namely 0 tons ha-1, 2 tons ha-1, 4 ton ha-1, and 6 ton ha-1so that 36 sample units are obtained. The results showed that the best combination was obtained from 10 ton ha-1 palm oil sludge and 3,61 tons ha-1 dolomite, which was able to produce the diameter of corn crop stalks of 1,98 cm. The single palm oil sludge treatment gave no significant effect on all growth and yield variables. The addition of dolomite dosage up to 6 tons ha-1 was able to increase plant height, total leaf area, the weight of corn without cornhusk, length of corn without cornhusk, a diameter of corn without cornhusk, fresh weight of the plant, and dry weight of the plant.","PeriodicalId":202555,"journal":{"name":"TERRA : Journal of Land Restoration","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126987131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ingri Dayana, Bandi Hermawan, Y. H. Bertham, Dwi Wahyuni Ganefianti
{"title":"Effects of Arbuscular Mycorrhiza Fungi and Coffee Pulp Compost in Improving Soil Water Uptake by Chilli Around the Permanent Wilting Point Conditions","authors":"Ingri Dayana, Bandi Hermawan, Y. H. Bertham, Dwi Wahyuni Ganefianti","doi":"10.31186/terra.3.1.23-26","DOIUrl":"https://doi.org/10.31186/terra.3.1.23-26","url":null,"abstract":"Soil water availability to the plants is a range of water content between the field capacity and the permanent wilting point (PWP) conditions. The PWP is defined as the lower limit of soil water content that the plant can extract water from the soil as indicated by the symptoms of wilting plants. This is because plant roots are unable to penetrate the soil micropores that contain the water. The study aims to analyze the effects of arbuscular mycorrhizal fungi (AMF) and compost in enhancing soil water absorption by the plant when the water content is close to the permanent wilting point. Four doses of AMF (0, 5, 10 and 15 g.plant-1) and three doses of coffee pulp-made compost (0, 5 and 10 ton.ha-1) were arranged according to a randomized complete block design with three replicates. Results showed that the application of AMF significantly enabled the plant to improve water uptake when the soil water content was about at the permanent wilting point conditions. The AMF addition of 15 g.plant-1 significantly prolonged the growing period of chili to wither and the plant showed the wilting symptoms at the soil water content of 5 to 7% lower than the no-AMF plants. Improved water uptake under water stress conditions was attributed to increases in the root colonization by AMF.","PeriodicalId":202555,"journal":{"name":"TERRA : Journal of Land Restoration","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129634797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Relationship Characteristics Soil, Fertilization and Outcome of Rice in Village Lubuk Pinang, Mukomuko","authors":"Weri Akmaldi, M. Barchia, Dwi Wahyuni Ganefianti","doi":"10.31186/terra.3.1.15-22","DOIUrl":"https://doi.org/10.31186/terra.3.1.15-22","url":null,"abstract":"This study aims to determine the close relationship between the characteristics of paddy soils and rice yields in Lubuk Pinang, the Manjunto Air Irrigation area, and to determine the level of applied technology of farmers and rice yields in Lubuk Pinang, the Air Manjunto Irrigation area. This research was conducted in April 2018 until June 2018 in Lubuk Pinang, Lubuk Pinang District, Mukomuko Regency. The study was conducted by survey method. Data as collected through direct observation in the field and soil analysis at the Soil Science Laboratory of Bengkulu University. The results showed that the coefficient regression soil pH (X1 ) is 0.208 to 0.875 sig t values are not real in the statistics. The regression coefficient cation exchange capacity (X2 ) is -0.018 with t sig value 0,781. Regression coefficient peat depth (X3 ) is -0.002 to 0.814 sig t values are not real in the statistics. Regression coefficient levels of soil organic C (X4 ) is -0.507 to 0.307 sig t values are not real in the statistics.","PeriodicalId":202555,"journal":{"name":"TERRA : Journal of Land Restoration","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116975810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Land Degradation and Option of Practical Conservation Concepts in Manna Watershed Bengkulu Indonesia","authors":"M. Barchia, K. Amri, Renra Apriantoni","doi":"10.31186/TERRA.1.2.23-30","DOIUrl":"https://doi.org/10.31186/TERRA.1.2.23-30","url":null,"abstract":"Watershed overcoming deteriorates in its function was indicated by increasing soil erosion and land degradation. The research aims were to determine and map critical land degradation levels and to chose options of practical conservation concepts in Manna watershed. The Manna watershed lays on 102°51'38.2\" - 103°10'57.8\" long, and 04°0'39.6\" - 4°29'38.0\" alt covering 72,899.9 ha. The analysis procedures to determine land degradation levels based on Ministry of Forestry Rule (No. P.32/Menhut-11/2009), Procedures of Technical Design on Forest and Land Rehabilitation in Watershed (RTkRHL-DAS). The results showed that the Manna watershed divided in three land uses functions namely protected forest, limited timber forest, and agricultural cultivated areas/settlement. The land starting overcome degradation in covered by 35,318.6 ha or 48,77% of the watershed based on digital mapping using ArcGIS 10.1 software. The lands that categorized the critical level of degradation covered 7,989.5 ha or 11,03% of the watershed, and classified in the high critical level were 169.8 ha or 0,23% of the watershed. Options of conservation practice on the degraded lands in the Manna watershed should implement agro-forestry models because of the physiographical landscape in this area covering by waving to hilly landforms. On the protected forest and limited timber forest should develop agro-forestry with collaborative approaches through social engineering and social forestry. Re-establishing land use of the Manna watershed based on functions of land is the wise options for the sustainable environmental concepts","PeriodicalId":202555,"journal":{"name":"TERRA : Journal of Land Restoration","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121865674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}