Journal of Applied Agricultural Science and Technology最新文献_第2页

Nitrogen Fertilizers and Plant Spacing in Organic Rice Cultivation: A Review 有机水稻栽培中氮肥与株距研究进展

Journal of Applied Agricultural Science and Technology Pub Date : 2023-08-25 DOI: 10.55043/jaast.v7i3.143

Erythrina Erythrina, Gagad Restu Pratiwi, Nurwulan Agustiani, Arinal Haq Izzawati Nurrahma

{"title":"Nitrogen Fertilizers and Plant Spacing in Organic Rice Cultivation: A Review","authors":"Erythrina Erythrina, Gagad Restu Pratiwi, Nurwulan Agustiani, Arinal Haq Izzawati Nurrahma","doi":"10.55043/jaast.v7i3.143","DOIUrl":"https://doi.org/10.55043/jaast.v7i3.143","url":null,"abstract":"Organic rice cultivation is one of the technologies developed in Indonesia around two decades ago, but it is not growing as expected. Indeed, organic rice production is considered less effective than conventional farming. This review article explores the role of agronomic factors in organic rice cultivation related to organic nutrient availability and plant spacing. The proposed alternative solutions for using organic inputs to improve soil fertility and increase crop yields are also discussed. The effectiveness of organic fertilizers to chemical fertilizers based on the Rice Agro-advisory Service shows that organic rice has lower yields than conventional farming. The yield reduction ranges between 0.5 and 2.2 t ha−1 or around 9 to 43%, depending on organic amendments and site characteristics. It is also proven that applying high-nitrogen nutrients from organic fertilizers does not increase rice production. Application of nitrogen fertilizers in the right amount and at the correct plant stage is more essential because it affects the yield component of rice plants. Narrower plant spacing in transplanted organic rice results in higher productivity. An increase in plant population higher than 25 hills m−2 no longer significantly increases rice yields. Among the agronomic factors that affect organic rice cultivation are the diversity of organic amendment in nutrient mineralization, especially nitrogen, according to plant needs, and narrow plant spacing that allows lesser weeds to grow among crop plants. These two agronomic factors need to be considered and applied by farmers to get the optimum growth and yield of organic rice cultivation.","PeriodicalId":33922,"journal":{"name":"Journal of Applied Agricultural Science and Technology","volume":"152 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134931402","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 Influence of Distance Between Oil Palm Plantations and Forest Ecosystems on Spider Diversity 油棕人工林与森林生态系统距离对蜘蛛多样性的影响

Journal of Applied Agricultural Science and Technology Pub Date : 2023-08-25 DOI: 10.55043/jaast.v7i3.137

Ulka Sri Asih, Yaherwandi Yaherwandi, Siska Efendi

{"title":"The Influence of Distance Between Oil Palm Plantations and Forest Ecosystems on Spider Diversity","authors":"Ulka Sri Asih, Yaherwandi Yaherwandi, Siska Efendi","doi":"10.55043/jaast.v7i3.137","DOIUrl":"https://doi.org/10.55043/jaast.v7i3.137","url":null,"abstract":"Forest conversion to oil palm plantations forms a unique agroecosystem. Forests known as a source of biodiversity are bordered by oil palm plantations with low diversity. The location of the oil palm plantation, which is directly adjacent to the forest, is thought to affect the diversity of spiders found in the agroecosystem. This study aimed to determine the effect of the distance between oil palm plantations and forests on spider diversity. The research was conducted at oil palm production centers in West Sumatra Province, Indonesia, namely Dharmasraya Regency, Pulau Punjung District, Nagari Gunung Selasih, and Sungai Kambut. In oil palm plantations, 10 sample plots (1 m x 1m) were determined along the transect line, 1 km from the forest's edge. Spiders were collected using the pitfall trap, knockdown, and hand collection methods. The spider diversity was analyzed by applying the diversity and evenness index by Shannon-Wiener. The results showed that the distance of the oil palm plantation from the forest affected the diversity of spiders. The closer the oil palm plantation is to the forest, the higher the diversity of spiders. The results of this study can be one of the considerations for oil palm business actors to maintain forests as conservation areas for organisms that provide various ecosystem services, including spiders as predators of oil palm pests.","PeriodicalId":33922,"journal":{"name":"Journal of Applied Agricultural Science and Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134931403","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

Lignin Degradation of Kapok Fiber (Ceiba pentandra, L) with Different Times of Pulping 木棉纤维不同制浆时间对木质素降解的影响

Journal of Applied Agricultural Science and Technology Pub Date : 2023-08-25 DOI: 10.55043/jaast.v7i3.186

Fransiska Angelina Rezekinta, Anwar Kasim, Edi Syafri, Irawati Chaniago, Firman Ridwan

引用次数: 0

Characterization of Rubber Seed (Hevea Brasiliensis) as Raw Material for The Production of Biofuel 橡胶籽(橡胶树)作为生物燃料原料的特性研究

Journal of Applied Agricultural Science and Technology Pub Date : 2023-08-25 DOI: 10.55043/jaast.v7i3.140

Ayuni Lestari, Muhammad Yerizam, Abu Hasan

{"title":"Characterization of Rubber Seed (Hevea Brasiliensis) as Raw Material for The Production of Biofuel","authors":"Ayuni Lestari, Muhammad Yerizam, Abu Hasan","doi":"10.55043/jaast.v7i3.140","DOIUrl":"https://doi.org/10.55043/jaast.v7i3.140","url":null,"abstract":"Rubber seeds from the Musi Rawas region in South Sumatra have great potential for rubber seed plantations. However, their utilization has not been maximized and they are often treated as plantation waste. This research aims to obtain the characteristics of rubber seeds as raw materials for biofuel production, so that the rubber seeds from the South Sumatra region can be utilized by the community and not just considered as plantation waste. In the first treatment, the rubber seeds are crushed to obtain the seed coat and the kernel. The crushed rubber seed shells are finely ground and sieved, while the kernel is pressed to extract vegetable oil using a pressing tool. The test methods used to determine the characteristics of the rubber seed shells include proximate analysis and calorific value, while GC-MS analysis is employed for the rubber seed oil. The proximate analysis of the rubber seed shell (RSS) yielded the following results: moisture content of 15.97 wt%, volatile matter of 47.43 wt%, fixed carbon of 32.45 wt%, and ash content of 4.15 wt%. The calorific value of the rubber seed shell was found to be 3312.8694 calories per gram. For the GC-MS yield of the rubber seed oil, the composition is as follows: palmitic acid 7.32%, linoleic acid 34.69%, oleic acid 45.35%, and pentadecanoic acid 8.86%. Based on the obtained results, rubber seeds show promising potential as raw materials for biofuel production through the pyrolysis process.","PeriodicalId":33922,"journal":{"name":"Journal of Applied Agricultural Science and Technology","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134931404","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: 1

Ammonium Sulphate (ZA) and Organic Fertilizer to Improve Yield and Quality of Shallot Bulb (Allium ascalonicum L.) on Recovered Ultisols 硫酸铵和有机肥在回收土上提高葱球茎产量和品质的研究

Journal of Applied Agricultural Science and Technology Pub Date : 2023-08-25 DOI: 10.55043/jaast.v7i3.150

Nilla Kristina, Elara Resigia, Netti Herawati

{"title":"Ammonium Sulphate (ZA) and Organic Fertilizer to Improve Yield and Quality of Shallot Bulb (Allium ascalonicum L.) on Recovered Ultisols","authors":"Nilla Kristina, Elara Resigia, Netti Herawati","doi":"10.55043/jaast.v7i3.150","DOIUrl":"https://doi.org/10.55043/jaast.v7i3.150","url":null,"abstract":"In principle, shallot can adapt to all altitudes. But in West Sumatera, it is generally cultivated in the highland. The problem is the area in the highland is very limited while the area in lowland land is dominated by Ultisol soils. The type of soil in Agricultural Faculty experimental field at Andalas University is Ultisol (250 asl) but the chemical properties slightly change, such as nitrogen, phosphor and potassium higher than usual otherwise SO42- and Ca-dd is still very low. This study aimed to obtain the best organic fertilizer and ZA fertilizer on the growth, yield and quality of shallot bulb on recovered Ultisols. The research was a-two factorial experiment with 3 replications in Completely Randomized Design. The first factor is the application of various types of organic fertilizer, which include three levels which are guano, chicken manure, and oil palm empty bunches (OPEB). The second factor is ZA fertilizer dosage (0, 100, and 200 kg/ha). Data were analyzed using the F test with a 5% level, and if there were significant differences, the analysis continued with the Duncan’s New Multiple Range Test (DNMRT) at a 5% level. The result showed that the development of shallots on recovered Ultisols brings hope. The yield of chicken manure and guano are higher than oil palm empty bunches and in accordance with the description of Bima Brebes varieties around 9 t/ha. Even guano could produce dry bulbs around10,54 t/ha without giving ZA. Moreover, guano fertilizer gave the best Sulphur content on every dose of ZA.","PeriodicalId":33922,"journal":{"name":"Journal of Applied Agricultural Science and Technology","volume":"195 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134931405","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

Growth and Yield Production of Pakcoy as Influenced by Artificial Light Irradiation 人工光照对紫菜生长和产量的影响

Journal of Applied Agricultural Science and Technology Pub Date : 2023-08-25 DOI: 10.55043/jaast.v7i3.126

Sari Widya Utami, Artdhita Fajar Pratiwi, Galih Mustiko Aji

引用次数: 0

The Effects of Biochar Incorporation on the CO2, N2O, and CH4 Emissions from the Soils of Stallholder Palm Oil Plantations, Jambi Province Indonesia 生物炭掺入对印尼占碑省摊贩棕榈油种植园土壤CO2、N2O和CH4排放的影响

Journal of Applied Agricultural Science and Technology Pub Date : 2023-08-25 DOI: 10.55043/jaast.v7i3.155

Damris Muhammad, Ngatijo Ngatijo, Ira Galih Prabasari, Bunga Mardhotillah

{"title":"The Effects of Biochar Incorporation on the CO2, N2O, and CH4 Emissions from the Soils of Stallholder Palm Oil Plantations, Jambi Province Indonesia","authors":"Damris Muhammad, Ngatijo Ngatijo, Ira Galih Prabasari, Bunga Mardhotillah","doi":"10.55043/jaast.v7i3.155","DOIUrl":"https://doi.org/10.55043/jaast.v7i3.155","url":null,"abstract":"The domestic agricultural sector contributes 18% to the national greenhouse gas emissions (GHG); which is higher compared to its global counterpart. Biochar incorporation into the soils shows the potential to reduce soil GHG emissions. The objective of this study was to ascertain how biochar addition affects CO2, N2O and CH4 emissions from the soils of stallholder palm oil plants. Coffee hash was pyrolyzed at 5000C to prepare biochar, which was then ground to pass a 100-mesh sieve. Three plots (50m x 50 m) consisting of 27 subplots (1 m x 1 m) were used as the experimental design in the field. Biochar was incorporated into the soil subplots of 0, 10, and 20-ton biochar/ha. A static chamber was installed on the soil surface to collect gas generated from the soil on days 0, 5, 10, 20, 40, and 60. All gas collection was conducted at 30 min after the chamber lid installation. The soil CO2, N2O, and CH4 emissions of control soils ranged from 712 to 862, 7.28 to 9.46, and -0.0036 to 0.0014 kg/d/ha, respectively. The incorporation of 10 and 20-ton biochar per hectare decreased the emissions of CO2 and N2O up to 16.8% and 33.8%, respectively; whereas an uptake was observed for the CH4 gas. The CO2 and N2O emissions from the 10-ton/ha and 20-ton/ha biochar-incorporated soils differ significantly compared to the control soils, but the CH4 emissions do not. This result shows that biochar incorporation to the oil palm soils reduces the CO2 and N2O emissions, but not CH4 emissions.","PeriodicalId":33922,"journal":{"name":"Journal of Applied Agricultural Science and Technology","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134931238","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

Utilization of Septic Tank Waste to Enhancement the Growth of Spinach in Various Media 利用化粪池废物促进不同培养基中菠菜的生长

Journal of Applied Agricultural Science and Technology Pub Date : 2023-08-25 DOI: 10.55043/jaast.v7i3.134

Ahmad Arif Darmawan, Akhmad Fatah Hidayat, Adib Aditya Permadi, Hendri Wibowo, Reo Sambodo, A.H. Syaeful Anwar, Joko Maryanto, M. Nazarudin Budiono, Renan Subantoro, Eni Yulianingsih, Ika Ferry Yunianti

{"title":"Utilization of Septic Tank Waste to Enhancement the Growth of Spinach in Various Media","authors":"Ahmad Arif Darmawan, Akhmad Fatah Hidayat, Adib Aditya Permadi, Hendri Wibowo, Reo Sambodo, A.H. Syaeful Anwar, Joko Maryanto, M. Nazarudin Budiono, Renan Subantoro, Eni Yulianingsih, Ika Ferry Yunianti","doi":"10.55043/jaast.v7i3.134","DOIUrl":"https://doi.org/10.55043/jaast.v7i3.134","url":null,"abstract":"Septic tank waste can be used as a new alternative to be used as fertilizer because human excrement contains the availability of nutrients needed by plants. The research aimed to know the effect of liquid organic fertilizers dose, and plant media type of both to increase the growth and the production of plant spinach. The experimental design used was Block Randomized Design factorial with 9 treatments and 3 replicates. The first factor consists of 3 doses of fermented septic tank waste of human feces. Namely doses of 0 mL/plant (K1), 0,4 mL/plant (K2), 0,6 mL/plant (K3). The second factor is the planting medium consisting of 3 kinds of land or control (M0), land + husk charcoal (M1), land + Manure (M2). The observed variables include the number of leaves, plant height, root length, fresh weight of plant, root fresh weight, dry weight, root dry weight of the plant. The results showed that the fermented septic tank waste 0,6 mL (K3) influential real against the number of leaves. Granting planting media differ very markedly against all variable observations i.e. high number of plants, leaves, root length, fresh weight of plant, root fresh weight, dry weight, root dry weight of the plant. All variables are not found the existence of an interaction between fermented septic tank waste with the media.","PeriodicalId":33922,"journal":{"name":"Journal of Applied Agricultural Science and Technology","volume":"182 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134931406","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

Microbiota Properties and Texture of Rice Flour Bread with Pineapple Starter 菠萝发酵剂米粉面包的微生物特性和质地

Journal of Applied Agricultural Science and Technology Pub Date : 2023-08-25 DOI: 10.55043/jaast.v7i3.130

Icca Ratna Danila, Rini Yanti, Dian Anggraini Suroto

{"title":"Microbiota Properties and Texture of Rice Flour Bread with Pineapple Starter","authors":"Icca Ratna Danila, Rini Yanti, Dian Anggraini Suroto","doi":"10.55043/jaast.v7i3.130","DOIUrl":"https://doi.org/10.55043/jaast.v7i3.130","url":null,"abstract":"Changing the ingredients also can change the properties of the bread. In this study, bread was made using rice flour and sourdough. Sourdough with Lactic Acid Bacteria (LAB) and yeast can also be added with pineapple starter to help microbiota growth. The study aimed to determine the amount of microbiota produced from sourdough with pineapple addition and its effect on the texture of rice flour bread. Pineapples with water and sugar were fermented to make pineapple starter. Pineapple starter is then used in sourdough making and fermented around 3-6 days. The mature sourdough was used in bread making. The addition of pineapple, in the form of a starter, made the pineapple sourdough (PS) have lower pH and higher titratable acidity (TA), total Lactic Acid Bacteria (LAB), and total yeast than sourdough without the addition of pineapple starter or wheat sourdough (WS). The pH and TA of PS at the peak were 3.25 and 2.67 mL of NaOH. The total LAB of PS at the peak was 9.27 Log CFU/g, and the total yeast was 9.30 Log CFU/g. PS reached its peak on the third day, while wheat sourdough (WS) reached it on the sixth day. The pineapple sourdough bread (PSB) had the lowest specific volume, and the highest texture properties compared to control bread (CB) and wheat sourdough bread (WSB), but there is no significance different. The addition of pineapple starter can fasten the fermentation time of sourdough and made the bread less brittle than CB.","PeriodicalId":33922,"journal":{"name":"Journal of Applied Agricultural Science and Technology","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134931243","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

Literature Review Crop Modeling and Introduction a Simple Crop Model 作物模型的文献综述及简单作物模型的介绍

Journal of Applied Agricultural Science and Technology Pub Date : 2023-08-25 DOI: 10.55043/jaast.v7i3.123

Le Huu Phuoc, Irfan Suliansyah, Feri Arlius, Irawati Chaniago, Nguyen Thi Thanh Xuan, Pham Van Quang

{"title":"Literature Review Crop Modeling and Introduction a Simple Crop Model","authors":"Le Huu Phuoc, Irfan Suliansyah, Feri Arlius, Irawati Chaniago, Nguyen Thi Thanh Xuan, Pham Van Quang","doi":"10.55043/jaast.v7i3.123","DOIUrl":"https://doi.org/10.55043/jaast.v7i3.123","url":null,"abstract":"Modeling science has been applied by many advanced countries in many fields, such as geology, meteorology, climate change, crop productivity, environment, erosion, and landslide. The crop model simulates the processes of agriculture. The writing of this article is descriptive qualitative using the Systematic Literature Review (SLR) method. So far, each model has its advantages and disadvantages but generally is based on the physiology of the growth and development of crops in relationship with soil, climate, solar radiation energy, and limiting factors to plant growth. There have been many models for rice that can forecast yield and biomass or predict future climate change dynamics. Meanwhile, many models such as DSSAT, AquaCrop, Oryza, APSIM, EPIC need more data to operate their modeling, which in many cases, data is not readily available. In this review, we would like to introduce the model “SIMPLE” which includes only thirteen parameters and four of which describe cultivar characteristics. Another advantage of “SIMPLE” is that it can be adapted for many crop species and added variable modules such as nutrient dynamics, water stress, temperature stress, or pests. It is entirely open source based on R programming, but limitations still exist that have been mentioned in the review.","PeriodicalId":33922,"journal":{"name":"Journal of Applied Agricultural Science and Technology","volume":"2019 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134931240","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