Journal of Smart Agriculture and Environmental Technology最新文献

Lead (Pb) accumulation in the Indonesian intensive farming system 印度尼西亚集约化农业系统中铅的积累

Journal of Smart Agriculture and Environmental Technology Pub Date : 2023-06-12 DOI: 10.60105/josaet.2023.1.1.26-29

Arif Rahman

{"title":"Lead (Pb) accumulation in the Indonesian intensive farming system","authors":"Arif Rahman","doi":"10.60105/josaet.2023.1.1.26-29","DOIUrl":"https://doi.org/10.60105/josaet.2023.1.1.26-29","url":null,"abstract":"One of the factors of soil pollution in paddy soil is the heavy metal lead (Pb). Lead is an element that is not essential for plants, with a content ranging from 0.1 - 10 µg/kg, and in various plants, it normally ranges from 0.5 - 3.00 µg/kg. This study aims to determine the content of lead (Pb) in soil and rice plants, as well as some of the chemical properties of the soil in the central rice area located in Marga Cinta, Belitang Madang Raya District, East Ogan Komering Ulu, South Sumatra, Indonesia. This study used a detailed survey method with a working map scale of 1:9,000. The paddy field studied covered 96 hectares divided into 6 locations, which were sampled using a random sampling method. Each location had 5 soil drilling points, and composite samples were created. Soil sampling was carried out by augering at a depth of 0-30 cm. The results showed that the content of lead (Pb) in paddy soil ranged from 9.90 – 12.18 µg/g with an average of 10.56 µg/g, while the content of lead (Pb) in rice plants was below the detection limit of the tool, with a value of <0.0002 µg/g. The conclusion from the study was that the content of the heavy metal lead (Pb) in paddy soil and rice plants at the study site was still below the threshold.","PeriodicalId":137730,"journal":{"name":"Journal of Smart Agriculture and Environmental Technology","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127782758","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}

引用次数: 0

Increasing growth of sorghum using vermicompost and dolomite planted in tidal soil 在潮土中施用蚯蚓堆肥和白云石促进高粱生长

Journal of Smart Agriculture and Environmental Technology Pub Date : 2023-06-12 DOI: 10.60105/josaet.2023.1.1.14-21

Nur Indah Febriza

引用次数: 0

Addition of acidifier with inulin and papain enzyme in the ration towards leukocyte differential in bottle growth period 饲粮中添加菊粉和木瓜蛋白酶酸化剂对奶瓶生长期白细胞分化的影响

Journal of Smart Agriculture and Environmental Technology Pub Date : 2023-06-12 DOI: 10.60105/josaet.2023.1.1.22-25

Marhaeni I, V. Yunianto, L. Krismiyanto

{"title":"Addition of acidifier with inulin and papain enzyme in the ration towards leukocyte differential in bottle growth period","authors":"Marhaeni I, V. Yunianto, L. Krismiyanto","doi":"10.60105/josaet.2023.1.1.22-25","DOIUrl":"https://doi.org/10.60105/josaet.2023.1.1.22-25","url":null,"abstract":"The aim of the study was to examine the effect of adding acidifier with inulin and papain enzymes in the ration on the differential leukocytes in turkeys during the growth period. The research material consisted of 80 male turkeys aged 12 weeks with an average weight of 1165 ± 62.24 g, an acidifier consisting of a mixture of lactic acid, propionic acid, and formic acid, and inulin sourced from dahlia tuber extract and the enzyme papain. The feed ingredients used in this study were corn, soybean meal, fish meal, rice bran, premix, CaCO3, lysine, and methionine. The research design used a completely randomized design with 5 treatments and 4 replications. The treatments applied included T0 (control diet/RK), T1 (RK + 1% acidifier), T2 (RK + 1% acidifier + 1.2% inulin), T3 (RK + 1% acidifier + 0.5% papain enzyme), and T4 (RK + 1% acidifier + 1.2% inulin + 0.5% papain enzyme). Parameters measured included heterophiles, lymphocytes, leukocytes, and total plasma protein. Data were analyzed using variance at the 5% level and Duncan's test of significant differences at the 5% level. The results showed that the addition of acidifier with inulin and papain enzymes had a significant effect (p<0.05) on the differential leukocytes (heterophiles, lymphocytes, leukocytes, and total plasma protein). The conclusion is that the addition of 1% acidifier + 1.2% inulin + 0.5% papain enzyme (T4) can maintain the health condition of the body, as observed from the differential leukocytes in male turkeys during the growth period.","PeriodicalId":137730,"journal":{"name":"Journal of Smart Agriculture and Environmental Technology","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114799953","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}

引用次数: 0

The stingless bee species Trigona spp. on various species of flowering plants in Baturaja City, Ogan Komering Ulu District, South Sumatra 南苏门答腊岛Ogan Komering Ulu地区Baturaja市各种开花植物上的无刺蜜蜂物种Trigona spp

Journal of Smart Agriculture and Environmental Technology Pub Date : 2023-04-30 DOI: 10.60105/josaet.2023.1.1.7-13

Elsa Febriani, Y. Pujiastuti

{"title":"The stingless bee species Trigona spp. on various species of flowering plants in Baturaja City, Ogan Komering Ulu District, South Sumatra","authors":"Elsa Febriani, Y. Pujiastuti","doi":"10.60105/josaet.2023.1.1.7-13","DOIUrl":"https://doi.org/10.60105/josaet.2023.1.1.7-13","url":null,"abstract":"Trigona bee (Trigona spp.) is a species of honey-producing bee that does not have a sting (Stingless bees). This bee is small in size and plays an important role as a pollinator of flowering plants. Research was conducted from June to July 2021 in Baturaja City, Ogan Komering Ulu Regency, South Sumatra. The purpose of this research was to study the species of Trigona bees (Trigona spp.) visiting various flowering plants and the species of flowering plants visited by these bees. The research method involved purposive sampling and direct observation in the field. Observations were made by identifying bee species present on several flower plants. Trigona bees predominantly used plants in the flowering phase as a food source due to their abundant nectar and pollen production. The field observations revealed 11 species of flowering plants favored by Trigona bees, namely Kembang kertas (Zinnia elegans), Jambu air (Syzygium aqueum), Air mata pengantin (Antigonon leptopus), Kelengkeng (Dimocarpus longan), Melinjo (Gnetum gnemon), Cabai (Capsicum annuum), Seri (Muntingia calabura), Palem (Dypsis lutescens), Matahari (Helianthus annuus), Santos lemon (Xanthostemon chrysanthus), and Belimbing (Averrhoa carambola). The most commonly found species of Trigona spp. was Heterogona itama, observed on the bridal tears flower (Antigonon leptopus).","PeriodicalId":137730,"journal":{"name":"Journal of Smart Agriculture and Environmental Technology","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126668182","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}

引用次数: 0

Determination of in situ NPK fertilization for rice growth in intensive farming system 集约耕作系统水稻生长氮磷钾原位施肥的测定

Journal of Smart Agriculture and Environmental Technology Pub Date : 2023-04-30 DOI: 10.60105/josaet.2023.1.1.1-6

Rahmi Wijaya, D. Budianta

{"title":"Determination of in situ NPK fertilization for rice growth in intensive farming system","authors":"Rahmi Wijaya, D. Budianta","doi":"10.60105/josaet.2023.1.1.1-6","DOIUrl":"https://doi.org/10.60105/josaet.2023.1.1.1-6","url":null,"abstract":"Rice fields that were intensively cultivated by the application of chemical fertilizers for a long time may experience declining rice production, as the soil ages. Therefore, it is necessary to assess the fertility of the paddy soil for rice cultivation. Site-specific balanced fertilization is determined based on soil test results that represent the in situ soil chemical properties. This study aims to analyze the fertility level of paddy fields and determine the optimal amounts of nitrogen (N), phosphorus (P), and potassium (K) fertilizers for rice growth, considering the soil fertility status in Marga Cinta, Belitang Madang Raya District, Ogan Komering Ulu Timur of South Sumatra, Indonesia. The study employed a random sampling method, with a total of 6 samples collected by drilling at a depth of 0 - 30 cm, and then composited. The results revealed that the fertility of the paddy soil at the study site was relatively low, with an average pH of 5.32, organic carbon content (C-Organic) of 0.67%, cation exchange capacity (CEC) of 9.85 cmol/kg, base saturation of 21.05%, total nitrogen (N-total) of 0.10%, available phosphorus (P-available) of 1.87 mg/kg, and exchangeable potassium (K-exchangeability) of 0.10 cmol/kg. Based on these findings, the recommended fertilization amounts are 199.89 kg/ha of urea, 147.91 kg/ha of SP-36, and 28.45 kg/ha of KCl.","PeriodicalId":137730,"journal":{"name":"Journal of Smart Agriculture and Environmental Technology","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125134756","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}

引用次数: 0