bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effect of Different Types of Medium and Fertilizer on Acclimatization of Vanda tricolor
Authors: Rineksane I A , Nu’imah M N K , Astuti A 
Published: May 2023

Abstract

Vanda tricolor is an orchid endemic to Mount Merapi whose existence is threatened by the eruption of Mount Merapi which can occur at any time and the community has taken it directly from nature. Several attempts have been made to preserve the Vanda tricolor orchid, one of which is through in vitro culture. In vitro culture studies of Vanda tricolor have been carried out and large numbers of shoots have been obtained through multiplication and then raised by subculture. Plantlets obtained must be acclimatized to adapt and be returned to their original habitat. Growing medium and fertilizer application are important factors in the acclimatization process. This study aims to determine the best type of medium and fertilizer for acclimatization of Vanda tricolor orchids. This research was conducted using an experimental method in the preparation of a Factorial Completely Randomized Block Design. The first factor is the type of medium, namely coconut husk, moss and coconut husk + moss, the second factor is the type of fertilizer, namely without fertilizer, foliar fertilizer and liquid organic fertilizer. From the two treatment factors, 9 treatment combinations were obtained. Each treatment was repeated 3 times and each replication consisted of 3 samples. The results showed that there was a mutual influence between the type of medium and fertilizer. The coconut husk + moss is the best medium for acclimatization of Vanda tricolor orchids. Meanwhile, foliar fertilizer and liquid organic fertilizer compared to without fertilization, can increase the growth of Vanda tricolor orchids during acclimatization.
Effectiveness of Eucalyptus Nano Formulation against Phytophthora capsici the Causal of Foot Rot Disease on Black Pepper
Authors: Noveriza R , Manohara D 
Published: May 2023

Abstract
Nanoemulsion is a form of nano pesticide that has been widely developed as a pesticide. Several reports state that the main compound contained in Eucalyptus essential oil, namely 1,8 cineol (C10H18O) or Eucalyptol can inhibit the growth of bacteria and fungi. The objective of this study was to assess the effectiveness of two types of Eucalyptus oil formulations with nano scale on the growth of the fungus Phytophthora capsici in vitro. This study was conducted in the plant pathology laboratory, at Indonesian Spices and Medicinal Crops Research Institute (ISMCRI), from January 2021 to June 2022. Chemical analysis of eucalyptus oil formulations with nano scale using Gas Chromatography and Mass Spectroscopy methods. The antifungal assay was carried out by adding a formulation with a specific concentration on Potato Dextrose Agar (PDA) medium and measuring its effect on the growth of P. capsici. The result showed that the particle size of the two eucalyptus oil formulations with nano scale range between 139.87-150.4 nm. The main chemical components of Nano E. urophylla West Java (NE-JB) are alpha-Pinene (13.92%), Eucalyptol (29.17%), p-Cymene (6.03%), and glycerin (20.45%). In contrast, Nano E. grandis North Sumatra (NE-SU) consisted of (1R)-2,6,6-Trimethylbicyclo [3.1.1]hept-2-ene (17.80%), Eucalyptol (10.90%), p-Cymene (6.50%), L-alpha Terpineol (6.69%), and glycerin (39.67%). The NE-SU formulation showed the ability to inhibit the growth of P. capsici better than NE-JB. The percentage inhibition of NE-SU at the 1.5% concentration was 91.47% while NE-JB was only 33.5%.
The adaptation new superior varieties and planting ways to arthropode diversity and rice yields
Authors: Resiani N M D , Sutami N P , Kamandalu A A N B 
Published: May 2023

Abstract
The impact of climate change is the biggest challenge for the agricultural sector, especially the food crops sub-sector. The research was conducted in Jembrana Bali. The aim was to obtain new high yielding varieties of rice and location-specific adaptive planting methods. The research time April - August 2021. Used a factorial randomized block design. The first factor consists of the type of variety (V) and the second factor is the method of planting (T). The type of variety (V) consists of 3 levels, namely V1=Bioni 63; V2= Inpari 32; and V3 = Inpari 30, while the method of planting (T) consists of 2 levels, namely T1 = direct seed planting, and T2 = transplanting. Data were analyzed using analysis of variance and further test with LSD 5%. The results showed that the treatment of varieties and planting methods had no significant effect on the diversity of carnivorous arthropods. Four types of carnivorous arthropods were found, namely odonata, araneae, coccinellidae, and paederinae with a low species diversity index of 0.4985; 0.5210; 0.5172; 0.4976; 0.5205, and 0.5057 in V1T1; V1T2; V2T1; V2T2; V3T1, and V3T2. Dominant herbivorous arthropods were Scirpophaga incertulas Walker, Cnaphalocrocis medinalis, Nilaparvata lugens Stal, and Leptocorisa oratorius. The highest yield was shown in V1T2 at 9.44 tons/ha. It was concluded that the new high yielding varieties of rice and location-specific adaptive planting methods were Bioni 63 Agritan transplanting. The use of the new high-yielding variety Bioni 63 Agritan also contributed to the reduction in the use of chemical pesticides, with data supporting low yellow rice stem borer attack.The relationship between research results and sustainable agriculture is supports sustainable agriculture.
Bioinsecticide activity of ethyl acetate extract of Nothaphoebe coriacea Kosterm bark against Spodoptera exigua larvae in a laboratory
Authors: Humaida U , Pambayun Y G , Pribadi T , Dewanto H A , Zuhro R K 
Published: May 2023

AbstractSpodoptera exiguais a cosmopolitan and polyphagous pest. Botanical pesticides are an alternative technique to controlS. exigua. This study aimed to evaluate the effect of an ethyl acetate extract ofNothaphoebe coriaceaKosterm bark (EEN) on the biological activity ofS. exigualarvae and to determine the most effective concentration to manageS. exigua. This experiment was arranged on a single factor completely randomized design with the concentration level as a factor. Botanical pesticide formulated from ethyl acetate solvent in maceration extraction. The test was carried out by dipping the leaf mustard into the treatment solution and then feeding it to 10S. exigualarvae. The result showed the EEN had an 0.5% extract content with bioactive from the alkaloids and tannins groups. Mortality and feeding inhibition showed good responses to the biological activity test. However, the mortality rate test revealed different responses the most effective concentration of EEN was 0.5%. This concentration has a mortality of 92% and kill 3.6 individuals per hour, but has a low feeding inhibition of 72.82%. A botanical pesticide from EEN can be developed to controlS. exigua. The LC50obtained from the application of the EEN toS. exigualarvae was 0.062%. EEN has the potential to be developed as a botanical pesticide.
Pesticides effect on growth of dark septate endophytes in vitro
Authors: Widyaningsih S , Triasih U 
Published: May 2023

Abstract
Pesticides are the necessary agrochemicals used in agricultural practice for the prevention of crops from pests and diseases. Pesticides may have direct effects on the non-target organisms, particularly these saprobic and symbiotic soilborne fungi. Dark septate endophytes (DSE) are endophytic fungi that colonize living plant roots without causing a negative impact. DSE might function as mutualistic fungi taking part in nutrients and altering the environmental tolerance of host plants, especially in stressed environments. The research was aimed to study the effect of pesticides on the growth, spore production, and morphology of DSE fungi isolated from citrus. This test used three active ingredients of pesticides namely Propineb 70%, Mancozeb 80 % (fungicides), and Glyphosate (herbicide). Dosage of pesticides in the treatments were 0.5 times, 1-time, 2-times of the recommended doses, and control (without pesticides). Three isolates of DSE fungi used were 5, 19, and TLG 2 isolates. The study showed that the growth of three isolates of DSE fungi on PDA containing various doses of Propineb 70% was significantly different from the control, as well as the spore density. Mancozeb 80% affects the growth of all fungi isolates compared to the control. DSE isolate 19 was more susceptible to the concentration of Mancozeb in the growth medium compared to 5 and TLG 2 isolates. The spore density in isolate 5 was significantly different compared to the control. The use of Glyphosate showed a relatively mild inhibitory effect on the growth and sporulation of DSE. Differences in the DSE isolates and the active ingredients of pesticides affected the growth and sporulation of DSE fungi.
Increasing productivity of acid sulphate soil for rice through application of ameliorant in Banyuasin South Sumatera
Authors: Ratmini NP. Sri , Herwenita  , Suprihatin Agus 
Published: May 2023

Abstract
Soil acidity, high solubility of Al, Fe and S as well as low soil fertility are obstacles to rice production in acid sulphate soil. However, rice production can be increase by improving land quality through application of ameliorant. The study was carried out on acid sulphate soil in Banyu Urip Village, Banyuasin Regency, South Sumatra during wet season of 2020. The study aimed to determine the effect of ameliorant to rice production in acid sulphate soil. The study used Randomized Block Design with 6 replications. The ameliorant tested were P1 = control (without ameliorant), P2 = Dolomite [CaMg(CO3)2] (2 t.ha−1), P3 = Agricultural lime/Calcium Carbonate [CaCO3] (2 t.ha−1), P4 = Manure (2 t.ha−1), P5 = Biochar (5 t.ha−1), P6 = dolomite + manure + biochar (1/3 of each dose) and P7 = agricultural lime + manure + biochar (1/3 of each dose); in which Swampland Soil Test Kit was used to determine the ameliorant doses. The ameliorant was spread across the soil surface two weeks before planting, then mixed using hoe at the same time with the second tillage. Parameters observed were agronomic characteristics including plant growth and yield components. Results showed that the provision of ameliorant was able to increase plant growth and productivity of rice in acid sulphate soil. The highest productivity was found in treatment P7 (3.96 t.ha−1 dry unhusked grain) which applied combination of agricultural lime, manure, and biochar.
Determination of the limiting factors for sugarcane (Saccharum officinarum L.) productivity with Leaf Sampling Unit (LSU) method in sandy soil
Authors: Kusumawati A , Satrio F B , Kautsar V 
Published: May 2023

Abstract
Sugarcane is one of the important plantation commodities that is widely cultivated in Indonesia as a raw material for the sugar industry. One type of land that is commonly used for sugarcane cultivation is sandy soil, however, this soil has shortcomings due to nutrients availability which affects the productivity of sugarcane. This study aims to determine the limiting factor of sugarcane productivity in sandy soil through the Leaf Sampling Unit (LSU) analysis. Foliar nutrient levels of Nitrogen (N), Phosphorus (P), Potassium (K), Calcium (Ca), and Magnesium (Mg) were determined. The parameters of plant growth observed included stalk height, stalk diameter, number of internodes per stalk, number of green leaves, number of stalk per clump, stalk fresh weight, and sugarcane productivity. Data were analyzed using correlation and descriptive tests. LSU analysis indicated that the levels of N and Ca were under sufficient conditions, at 1.98% and 0.33%, respectively. Meanwhile, the P, K, and Mg were in critical condition, with values of 0.03%, 0.09%, and 0.12%, respectively. Sugarcane stem diameter had a correlation with sugarcane productivity (r=0.985). Increasing the dose of fertilizers, especially P, K, and Mg is needed to overcome these nutrient deficiency conditions; thus the productivity of sugarcane can be optimized and sustainable.
Comparative Advantage of Productivity and Soil Properties on Corn-Soybean Intercropping to Monoculture System in Marginal Dry Land of Gunungkidul
Authors: Riyanto D , Cahyono T , Anshori A , Yustisia  , Udiarto B K 
Published: May 2023

Abstract
Most of agricultural land in Gunungkidul Regency is in the form of dry land. The appropriate cropping pattern in term of optimizing land in secondary planting season is intercropping system. The aim of this study was to show the comparison between corn or soybean monoculture with corn-soybean intercropping of two different varieties on growth, yield, LER value and soil properties on dry land of Gunungkidul. This study was conducted on Kampung, Ngawen, Gunungkidul. Soybean seeds were planted 14 days before corn seeds to avoid hindering the irradiation of soybean plant. Soybean seeds were planted 5 rows between two rows of corn with a spacing 40 cm x 20 cm. The soybean varieties were used Dena-1 and Grobogan, while corn varieties used Pioneer 35 and Bisi-2. The planting distance of corn were used the legowo system, that was (65-50) cm x 30 cm. Results of the study was shown that the highest corn productivity was achieved by Pioneer 35 variety, which intercropped with Dena-1 variety, that yielded 6.73 ton. ha−1 dry corn and 1.65 ton.ha−1 soybean seeds.. This yield was lower 9.11% and 10.13%, respectively compare to monoculture system on the same corn or soybean cultivation. The advantage of intercropping corn-soybean system was added biomass of soybean, which can be used as animal feed. The chemical soil properties of corn-soybean intercropping increased on N total about 33.33%, P and K available increased 25.71% and 23.62%, respectively. Soil CEC increased about 19.53%, while soil pH did not significantly different compared to monoculture.
Semi Pilot Scale Study on Production of Silica from Rice Husk Ash
Authors: Hidayat T , Setyawan N , Hoerudin  
Published: May 2023

Abstract
Silica is a versatile material that has many uses in various industrial fields such as the rubber, ceramics, pharmaceuticals, catalysts, absorbents, and electronics. Rice husk ash (RHA) is one of the potential natural materials as a source of silica. Various studies to produce silica from RHA have been carried out by sol-gel method but are still on a laboratory scale. This research aims to study the production of silica from RHA using the sol-gel method on a semi pilot scale (3 kg raw material per process). The treatments studied were addition of boiling water to the reaction product after extraction during the filtration step (before the gelation process) and the gel drying methods. The characterization of silica was determined using X-Ray Fluorescence (XRF), X-Ray Diffraction (XRD), and Scanning Electron Microscope (SEM). The best treatment with the highest yield (70.07%) and purity of silica (95.41%) was obtained by addition of boiling water to the reaction product and drying the gel using a mechanical dryer. The XRD results show that the silica produced has an amorphous phase, while the SEM results show an aggregate structure without cavities and tends to be wavy. The yield and purity of silica is relatively high so this process can be developed on a pilot scale. The utilization of RH or RHA into silica can reduce environmental problems caused by the accumulation of RH or RHA in very large quantities.
Effect of maturity stage on physico-chemical properties of Garifta-merah mango fruit
Authors: Widayanti S M , Mulyawanti I , Dewandari K , Winarti C , Hayuningtyas M 
Published: May 2023

Abstract

Garifta-merah is one of the mango varieties released by the Ministry of Agriculture in 2009 with the advantage of having red-yellow peel when it reaches full maturity. The distinctive taste of the fruit flesh makes it one of the types of mangoes favored by consumers in local and foreign countries. As a new variety, there is not much data regarding the Garifta-merah mango, especially regarding the optimal maturity stage to harvest. This study aims to determine the physico-chemical character of the Garifta merah mango harvested at 4 different maturity stage (70%, 75%, 80% and 90%). The study was conducted using a completely randomized design with 2 replications. The parameters observed included fruit peel color, fruit flesh color, total soluble solids (TSS) and fruit firmness. The results showed that the stage fruit maturity determines the physico-chemical character of the fruit. The maturity level of the Garifta-merah mangoes affects the color of the peel and flesh of the fruit, the firmness of the fruit as well as the total soluble solid. Garifta-merah mango fruit can be harvested at maturity level above 75%.
Use of Chitosan and Essential Oils as Edible Coating for Sapodilla Fruit (Manilkara zapota)
Authors: Widyastuti T , Dewi S S , Mudawy A A 
Published: May 2023

Abstract
Sapodilla fruit (Manilkara zapota) is one of the annual tropical fruit plants that have a shelf life of only 3-4 days at room temperature. One way to extend the shelf life of fruit is by coating. Chitosan has an excellent potential to be applied as an edible coating. The addition of essential oils, namely Vanilla and Betel, is expected to improve the characteristics of the edible coating and act as an antimicrobial and antioxidant. This research was conducted to extend the shelf life of Sapodilla fruit using Chitosan, adding Vanilla and Betel as a coating material. This research was arranged in a Completely Randomized Design (CRD) with a single factor design consisting of four treatments with three replications. The treatments included: K0 = Control, K1 = Chitosan, K2 = Chitosan+Vanilla, K3 = Chitosan+Betel. The results showed that using edible coatings can reduce fruit weight loss, maintain vitamin C levels, and lower reduced sugar levels. And did not reveal its effect on the fruit hardness, total titrated acid, and total dissolved solids. Edible coating with Chitosan+Vanilla is the most effective treatment to extend the shelf life of Sapodilla fruit, maintaining a shelf life of seven days.
Environmental reporting by Indonesian agricultural companies around the spread of the COVID-19 epidemic
Authors: Widagdo A K , Ika S R , Dhani C N , Putri L F , Sumbodo B T 
Published: May 2023

AbstractThe purpose of this article is to see if there was a change in the amount of environmental reporting by agricultural firms after the COVID-19 epidemic spread in Indonesia. This study also examines the difference in the degree of environmental reporting between companies that publish sustainability reporting and those that do not in the period pre- and post-COVID-19. In addition, determinant factors for the extent of environmental reporting are also explored. This study utilizes 23 companies as a sample, i.e., the Indonesia Stock Exchange-listed agricultural enterprises in 2019 and 2020. The paired sample t-test results show that environmental reporting rose following the spread of the COVID-19 pandemic compared to reporting levels before the pandemic. In addition, the environmental reporting of companies that publish sustainability reporting is significantly higher than that of those that do not. This finding implies that despite the hard time facing COVID-19, the companies keep maintaining incentives to care more about the environment, which is marked by increased environmental reporting. Meanwhile, the factor that affects the amount of environmental exposure is the firm’s size. Hence, a company’s level of environmental reporting will increase as its assets grow in size.
Influencing people for good: Waste bank and social marketing communication strategies
Authors: Alkhajar E N S , Luthfia A R , Sofyan A 
Published: May 2023

Abstract
Waste bank is one of mitigation strategies to reduce climate change impacts. This research focuses to examine the social marketing communication strategies used by the opinion leaders as social marketers to persuade people in Pendulan Hamlet to actively participate in the implementation of the waste bank. The study employed descriptive qualitative method. The data were collected using field observation, interviews, and documentation. The results found there were two main strategies to persuade people: (1) face-to-face communication; and (2) group communication. In addition, the characteristics of rural areas are important factors that influence the successful of social marketing communication strategies.
Visitors’ Awareness to Maintain and Preserve the Biodiversity and Environment at Bantimurung Nature Tourism Object, Bantimurung Bulusaraung National Park
Authors: Putri I A S L P , Ansari F 
Published: May 2023

Abstract
Bantimurung Nature Tourism Object is one of the famous destinations in South Sulawesi Province. This research aims to determine the level of visitor awareness to preserve this destination’s biodiversity and environment. Data collection about the levels of visitor awareness was conducted using the interview method. The result of the study showed that most visitors are aware of the biodiversity and the environment. However, the lack of knowledge and fewer visitors information about protected butterfly species declined their environmentally friendly behavior and awareness. Therefore, persuading visitors that their behavior will affect the destination’s biological and non-biological natural resources is necessary. Moreover, it is required to improve visitors’ knowledge about friendly environmental behavior and how to maintain this potential so they can enjoy it sustainably.
Flexible Working Arrangements (FWAs) in Malaysia: The Missing Component of the Right to Disconnect
Authors: Shaari SC , Amirul SR 
Published: May 2023

Abstract
Flexible Working Arrangements (FWAs), particularly working from home, are important to maintain a better work-life balance. The government of Malaysia has recently amended the Employment Act 1955 (Act 266) by incorporating the right of the employees to request for FWAs. However, the authors submit that the policymakers should have incorporated the right to disconnect (RTD) in the recent amendment. Thus, it is the objective of this article to explore the provisions of RTD as recently accepted in France and a few European Union (EU) countries; and the possibility of introducing the RTD into Malaysian legislation. In accomplishing the aim of this article, a doctrinal legal research methodology is deployed. It is submitted here that despite incorporating the FWAs in the Employment Act 1955, the policymakers should have embedded RTD as well. Otherwise, the employees’ work-life balance is at stake. It is concluded that man-made law is not sacrosanct. It must be modified over time to suit the changes in society. The findings will help in advancing the existing body of knowledge and give some ideas to the policymakers, especially the officers at the Ministry of Human Resources and the trade union officials.