bluuebunny/crossref_metadata_2025_split huggingface dataset:
Enhancing the fertility of soil and the yield of soybean in a dry climatic area of Vertisol South Lombok using combination of bioorganic-phosphate and inorganic fertilizers
Authors: Susilowati L E , Kusumo B H , Arifin Z , Sukartono  
Published: July 2021

Abstract
Vertisol of South Lombok is the center of soybean production on Lombok Island which is productively vulnerable due to climate change. Erratic pattern of rainfall may threat the production of soybean in this dry climatic area which may be exaggerated by climate change. Therefore. it is needed efforts to maintain or even to increase the yield of soybean through adding both bioorganic and inorganic fertilizers. This study aimed to assess the effect of combination of bioorganic and inorganic fertilizer on enhancing the fertility of soil and the yield of soybean. This experiment used a randomized block design (RBD) with 4 treatments and 5 replications. The treatments were 50% of the recommended dosage of inorganic fertilizers plus 10 g per plant of bioorganic-phosphate (P1), 75% of the recommended dosage of inorganic fertilizers plus 10 g per plant of bioorganic-phosphate (P2), 100% of recommended dosage of inorganic fertilizers (P3), and control. Parameters observed consisted of soil pH, available-P. Exchangeable-K, organic-C, cation exchange capacity (CEC), base saturation (BS), and the yield of soybean. The results showed that the treatment of 75% of the recommended dosage of inorganic fertilizers plus 10 g per plant of bioorganic-phosphate (P2) increased the soil P-available from 10.71 on the control to 22.59 ppm on the P2 treatment, and resulted from the highest yield of soybean. Thus, this treatment is recommended if the combination of the fertilizers to be applied in the Vertisol South Lombok for adapting to climate change.
Land suitability evaluation for Arenga pinnata cultivation as a source of traditional cuisine, Horog-Horog, in 3 districts of Jepara Regency, Central Java
Authors: Yudhiantami A , Reynanda R D , Pertiwi Y A B , Wicaksono R L 
Published: July 2021

Abstract

Arenga pinnata (sugar palm) is an economically and ecologically important palm in Jepara Regency. People of Jepara have been extracting the starch from its stem as the main raw material for traditional cuisine, horog-horog. Sugar palm stands can conserve soil and water. Their large stems store relatively much carbon rather than other agricultural monocot plants. Thus, sugar palm cultivation plays an important role in climate change mitigation. However, the areal of sugar palm cultivation was limited. Thus, land evaluation was needed to predict land performance over time to support sugar palm cultivation. The purposes of the present study were to identify land characteristics and their suitability for sugar palm cultivation. This research was conducted in Bangsri, Kembang, and Pakis Aji Districts. The purposive sampling method was used for the field survey. In total, there were 20 land units (9,232.17 ha) across those three districts. Furthermore, to determine land suitability for sugar palm cultivation, the matching method was applied. Thus, the data from field surveys and laboratory tests were used. The obtained results in the present study indicated that 13 land units were classified as S3 (marginal) and 7 land units were classified as N (not suitable). However, there were some limiting factors in the field that must be addressed to support sugar palm cultivation in S3, such as water availability (wa), rooting condition (rc), and nutrient retention (nr). Furthermore, in the land unit that was classified as N the main limiting factor was slope (>30%).
A Review: Is Cinderella’s story of self-DNA extracellular effect towards plant growth real?
Authors: Purnamasari R , Sudadi U , Santosa D A 
Published: July 2021

Abstract
Research related to the extracellular self-DNA effect in plants has been widely conducted during the last decade. Researchers reported the impact of extracellular self-DNA inhibition on plant growth, assuming that extracellular self-DNA could enter plant tissue and thus stimulate an inhibitory response. Environmental conditions have a big role to play in supporting this inhibition, especially with the significant climate changes that have occurred in recent years. Climate changes such as rainfall, humidity, light intensity, and air temperature have a positive effect on the decomposition process of plant litter. Especially if there is a significant climate change accompanied by a monoculture cropping pattern will further trigger the accumulation of extracellular DNA. Dissolved DNA concentration in the soil with the probability of occurrence of the self-DNA effect is directly proportional. Although several studies have confirmed the inhibitory results, self-DNA’s mechanism can enter plant tissue and stimulate an inhibitory response has not been widely discussed. It has sparked debate regarding the actual effect of self-DNA and the extent of its potential to inhibit plant growth. Therefore, this paper intends to collect various hypotheses and research results regarding self-DNA’s impact on plant growth and reconstruct more comprehensive assumptions regarding the effect of self-DNA, its inhibitory potential, and its ecological implications in agriculture. Exhaustive assumptions about self-DNA are expected to be the basis for generating new research designs that include new variables that have not been considered in previous research.
The impact of climate change on land suitability and cocoa productivity in Tulakan District, Pacitan Regency
Authors: Herawati Aktavia , Rahayu  , Herdiansyah G , Supriyadi  , Wijayanti R 
Published: July 2021

Abstract
The existence of global warming, directly or indirectly, will have an impact on climate change which will threaten the productivity of cocoa plantations. This study aims to (1) determine the correlation between rainfall, relative humidity, and temperature to cocoa productivity and (2) determine the correlation between land suitability and cocoa productivity in Tulakan District, Pacitan Regency. The method used in this research was a descriptive exploratory method with a purposive sampling technique of collecting soil samples on land map units that have been determined based on various map overlays. There are five land map units (LMU) with a total area of 2.624 Ha with each LMU repeated three times. Regression correlation analysis was conducted to determine the relationship between rainfall and relative humidity on land suitability and cocoa productivity. The analysis showed that there was a negative correlation between rainfall and cocoa productivity (r = - 0.892, p <0.05), as well as relative humidity and cocoa productivity (r = - 0.950, p <0.05). There was a positive correlation between land suitability and cocoa productivity (r = 0.895, p < 0.05). Land map unit 1,2,3 were the best class of land suitability with the lowest limiting factor (relative humidity and available P), and it has high cocoa productivity. The higher rainfall and relative humidity will affect the lower cocoa productivity.
The effect of biocompost Trichoderma spp. tablet in stimulating shallot growth and yield for climate change adaptation
Authors: Sudantha I M , Suwardji S 
Published: July 2021

Abstract
The use of fertilizers that are appropriate and right on target is necessary to assist plants in dealing with conditions of climate change to extreme climates that cause the soil to become dry and less fertile. To deal with climate change adaptation and increase the productivity of shallots, a study aimed to determine the effect of biocompost dosage Trichoderma spp. tablet in spurring growth and yield of several shallot varieties. The research used an experimental method which was conducted in Sembalun Bumbung Village, East Lombok Regency. This study used a Randomized Block Design with a factorial experiment. The main factor is the dosage of biocompost tablets, namely: 0 g/plant, 2.5 g/plant, 5 g/plant, 7.5 g/plant, and 10 g/plant. The simple factor is that the shallot varieties, namely: Bali Karet, Ampenan, Keta Monca, Super Philip and Super Cros. The results showed that the dosage of biocompost tablets starting at 5 g/plant can stimulate growth and can increase the weight of harvested dry tubers. Bali Karet varieties are very adaptive so that the growth and yield of dry tuber weight are the highest, Ampenan and Keta Monca are adaptive in the highlands, while Super Philip and Super Cross are less adaptive.
Groundwater vulnerability in karst area Pucung Village, Eromoko, Wonogiri District
Authors: Syahidin U , Komariah  , Murti S H 
Published: July 2021

Abstract
Climate change has a negative impact on the reduction of groundwater resource potential in the Gunungsewu Karst Area, in terms of quantity, quality and continuity. This impact is felt by the people of Pucung Village who use water found in underground rivers and springs to meet their daily domestic water needs. The potential of water resources in the area is very vulnerable to a decrease in quality and quantity related to changes in the carrying capacity and capacity of the karst area as a result of climate change. This study aims to assess the groundwater vulnerability zone and the condition of the water catchment area in the karts area of Pucung Village, Eromoko District, Wonogiri Regency, Indonesia.The research method used is the EPIK method which is applied to the Geographical Information System (GIS). Research variables include (a) Epikarst; (b) Protective Cover; (c) infiltration conditions, and (d) karst network. The four variables obtained from the interpretation of remote sensing images, topographical maps, geological maps and field surveys were analyzed using scoring techniques. The results showed (1) 875.15 hectare or 88% of the area in Pucung Village is in a zone that is very vulnerable and susceptible to contamination of Groundwater; (2) agricultural activities in the water catchment area have the potential to contaminate of groundwater in the study area.
Biological water quality of Gajah Wong River, Yogyakarta City, Indonesia
Authors: Zaman M N , Komariah  , Sunarto  
Published: July 2021

Abstract
Climate change causing a shift in the dry and rainy seasons, and impacts the availability of water that is getting less. Its change people activity used the river directly thus increasing pollution. As a river management effort, it is necessary to carry out periodic monitoring by public. This study aims to determine the biological water quality of the Gajah Wong river segment Yogyakarta city, Indonesia based on biomonitoring with family biotic index (FBI). The data used are primary data form field data collection. The data collection method used is biomonitoring. The observed parameters were the overall diversity of benthic macroinvertebrates, Water quality follow analysis with family biotic index (FBI). The results showed the stations Gajah Wong 2 (GW2), GW3, and GW8 were of the water quality good, whereas the stations GW1, GW7, and GW6 were of the quality fair fairly. Then the stations GW5 and GW10 were of the water quality fairly poor, the stations GW9 poor very, and finally, station GW4 were of the water quality very poor, this can be seen in the result of the collected organism data, namely the majority is Tubificidae group found 65.30%. It can be concluded that the Gajah Wong river segmented of Yogyakarta city is polluted.
Consumer awareness towards eco-friendly product through green advertising: Environmentally friendly strategy
Authors: Alamsyah D P , Othman N A , Indriana  
Published: July 2021

AbstractClimate change has become a controversial issue because people need to make massive lifestyle changes to mitigate global warming. Companies have started to shift their marketing strategies to increase product value and sales towards environmentally friendly strategies. Green advertising often uses. aim to raise the consumers awareness for eco-friendly products. Based on environmentally friendly products, this study focus on examining the level of consumer awareness towards eco-friendly products based on green advertising. The research is conducted among consumers who have never purchased eco-friendly products, but they have received green advertising. Data of 241 consumers are taken through questionnaires and analysed through SPSS to determine the correlation values and analysis. The finding stated that there are three factors used as samples of green impact, green message, and green theme, where the level of consumer acceptance is quite good. Furthermore, it is also known that the level of consumer awareness increases after receiving green advertising. Finding of this study is useful for industries to adopt an environmentally friendly strategy, whereby it can improve from consumer perspectives based on impact, message, and theme.
Weed extract effect on growth and yield of some corn varieties
Authors: Rahayu M , Yudono P , Indradewa D , Hanudin E 
Published: July 2021

Abstract
One of the impacts of climate change in agriculture is on the diversity of crop pests, plant diseases and weeds. In addition to competition, weeds can suppress growth through alelopathy. The effect of alelopathy can be caused by the presence of alelochemicals produced by weeds. This research aims to gain the influence of weed extract on the growth and yield of some varieties of corn. The study used a complete randomized design with 2 treatment factors namely corn varieties and weed extract. Corn varieties consist of Bisi 18, NK 33, DK 95 and Sukmaraga. Weed extract consists of without weed extract, weed extract grown on corn plants with fertilization 25 kgN.ha-1, weed extract at fertilization 150 kgN.ha-1, and weed extract at fertilization 275 kgN.ha-1. The observed parameters include the plant height, the number of leaves, stem diameter, the length of the leaves, the width of the leaves, the angle of the leaves, the dry weight of the plant, the weight of seeds per plant. Data analysis using analysis of variance and a Duncan Multiple Range Test level of 5%. The results showed that weed extract does not affect the number of leaves, leaf length, leaf width, leaf angle, stem diameter, dry weight of the plant, and seed weight per plant. Weed extract from fertilization 275 kgN.ha-1 lowers the height of corn plants.
The stability of calibration model in measuring and mapping soil organic matter in a dry climatic area
Authors: Kusumo B H , Idris M H , Sukartono  , Mulyati  , Susilowati L E , Bakti L A A , Baharudin  , Purwanto Y A , Bustan  
Published: July 2021

Abstract
The increase of atmospheric CO2 concentration from soil organic matter (SOM) decomposition may contribute to the global warming and climate change. So, sequestering this greenhouse gas into SOM may be used to mitigate climate change. However, tedious procedures in measuring and mapping SOM need to be replaced with a method which works based on the reliability of calibration model developed. This research aimed to test the reliability of the calibration model that was built from a separate soil sample group to be used to measure and map SOM on other validation soil sample group, in the mostly dry climatic area of Kayangan Sub-district, North Lombok Indonesia. For this purpose, 300 soil samples were collected from the area using grid method, which were then dried, ground, sieved, analysed for SOM content using the Walkley and Black method, and scanned using Near Infrared Spectroscopy. The model built using calibration sample group was able to reliably measure and map the SOM content of the spectral data collected from the validation sample set. This is shown by the coefficient of determination (R2
V = 0.79), root mean square error (RMSEV = 0.246%) and the ratio prediction to deviation (RPDV = 2.09). SOM maps generated from both laboratory and near infrared method can show very low, low and medium SOM content. These maps can be further used as a reference for applying organic fertilizers, avoiding excessive use of fertilizers, and monitoring soil carbon sequestration in mitigating climate change.
Carbon footprint analysis on household consumption in Indonesia based on the Indonesia Family Life Survey (IFLS) in 1993 and 2000
Authors: Saras A , Kristanto G A 
Published: July 2021

Abstract
An increase of CO2 emission on the atmosphere appears to be one of the most significant environmental threats for all living things, the ecosystem, and even the global economy. Household consumption patterns are proven to have contributed 60-70% to global emissions. Hence, we aim to analyze the impact of Indonesia’s household environmental load for the transition towards low-carbon living to reduce GHG emissions that cause climate change. This study aims to investigate the relationship between several household expenditure categories to CO2 emission, using Indonesian Family Life Survey (IFLS) data as the only large-scale longitudinal survey available in Indonesia, which means showing carbon footprint at the level of Indonesia household consumption practices. Generally, the results show that energy for houses (electricity and kerosene), and household electrical appliances are the top three carbon footprint generators. Based on the results, the total emission in urban areas is way higher than in rural areas. Correlation analysis indicates that both of factors, number of household members and total income did not significantly affects (low correlation) total emission in the urban areas (r < 0.5), while total income impacts the rural regions (r = 0.88) in 1993. These findings are important to generate solutions based on segmented targets towards a net-carbon society.
Bioethanol production from sugarcane bagasse by Saccharomyces cerevisiae ATCC 9763 immobilized in Na-alginate
Authors: Gunam I B W , Dewi I A P K , Antara N S , Anggreni A A M D , Setiyo Y 
Published: July 2021

Abstract
Currently the supply of fossil energy is running low; besides, it contributes very significantly to environmental pollution and climate change. Therefore, it is necessary to develop new and renewable alternative energy, one of which is bioethanol. One of the potential raw materials used in bioethanol production is sugarcane bagasse which is an abundance of agricultural waste. This study aims to determine the concentration of Na-alginate and the density of cell suspension with the best activity and stability of immobilized Saccharomyces cerevisiae ATCC 9763 cells in the bioethanol production process. This research is an experimental study using a randomized block design (RBD) with a factorial pattern consisting of two factors, namely the first factor is the concentration of Na-alginate and the second factor is the concentration of cells suspension in making immobilized S. cerevisiae cells. The first factor consists of 5 levels, namely 0%, 2%, 3%, 4%, and 5% (w/v). The second factor consisted of 3 levels, namely cells with OD660 20, 25, and 30. The parameters observed were the activity of immobilized S. cerevisiae cells including several variables, namely reducing sugar content, pH, and ethanol content. The stability of immobilized S. cerevisiae cells was seen from the level of cell turbidity (OD660 nm). The results showed that the concentration of Na-alginate, the concentration of S. cerevisiae cells, and the interaction between treatments had a very significant effect on the activity and stability of immobilized S. cerevisiae cells. The treatment of Na-alginate 2% (w/v) with cell density 25 was able to produce ethanol with a higher level of 63.87 ppm compared to treatment with 0% Na-alginate (free cells) with the level of cell density 25 was 56.97 ppm.
Measuring of leaf litter decomposition rate and flux of carbon dioxide in various land cover in Gunung Bromo Education Forest, Karanganyar
Authors: Darmawan A A , Ariyanto D P , Basuki T M , Syamsiyah J 
Published: July 2021

Abstract
The process of leaf litter decomposition on the soil surface as a source of nutrition and food for soil fauna. Leaf litter decomposition rate is influenced by the activity of soil fauna, which is thought to increase the emission of carbondioxide from the soil. The aim of this research was to investigate the leaf decomposition rate and flux of carbon dioxide in various land cover. The research was conducted from July to November 2020 in Gunung Bromo Education Forest, Karanganyar, Central Java. This research used purposive sampling with nine land covers and three replications. The leaf decomposition rate was measured using the litterbag method, and flux of carbon dioxide was measured using the closed chamber method. The results suggested that the leaf decomposition rate was the fastest in Pine 2016 at 6.17 g/week, and the highest flux of carbon dioxide in Indonesian rosewood (Dalbergia sissoo) rejuvenation was 9,860 mg/CO2/day. The leaf decomposition rate was influenced by air temperature (p = 0.535) compared to humidity (p = - 0.257). Flux carbondioxide is influenced by air temperature (p = 0.854) compared to humidity (p = - 0.677), and the leaf decomposition rate affects the level of flux of carbon dioxide (p = 0.631).
The fermentation quality of complete feed with FJLB silage additive from tropical grass
Authors: Yanti Y , Riyanto J , Dewanti R , Cahyadi M , Wati A K , Pawestri W 
Published: July 2021

Abstract
Climate change occurs because of the greenhouse gas effect. Methane from livestock accounts for 44% of methane emissions in the air, which comes from fermentation from the rumen and from feces. Many attempts have been made to reduce methane production in the rumen, including feed management. This study aims to improve the quality of complete feed fermentation with the addition of different grass source of FJLB (fermented juice of epiphytic lactic acid bacteria). The treatments consisted of T0 (Control, without FJLB), T2 (FJLB from Napier grass), T3 (FJLB from King grass). Complete feed consists of rice straw, rice bran, soybean meal, pollard and corn. The pH value of the silage with the addition of FJLB was lower than that of the silage without the addition of FJLB. The highest acetic acid production was at T3, 8.76 ppm. Meanwhile, the number of lactic acid bacteria was 5.4; 6.3 and 7.6 CFU/ml, for T0, T1 and T2, respectively. Meanwhile, ammonia production was not significantly different. The conclusion of this study is the addition of FJLB from napier grass and king improves the quality of fermentation compared to without the addition of FJLB. Good fermentation quality will improve digestibility in the rumen and is expected to reduce methane production, which is one of the greenhouse gases that causes climate change.
A test on pollen viability and fruits forming ability of some melon varieties by using storage treatment
Authors: Yudhistira M C , Nandariyah  , Pardono  
Published: July 2021

Abstract
Climate change decreases biodiversity through hybridization. The warming climate affects the spread of hybridization. The production of melon fruit in Indonesia fluctuated from time to time from the seeds’ lousy quality. An effort to improve melon seeds’ quality was needed using hybridization. However, the low availability of high viability pollen became one of the problems in the hybridization process. This research aimed to study the pollen’s viability and produce two varieties of melons using some storage treatments. The research used Randomized Complete Block Design with split-plot design by using two treatment factors, the main plot and storage treatment were used as the subplot. The combination of varieties and pollen storage was significant for the viability of the pollen. Golden Melon Variety A and B had different pollen viability. Using a two-day storage treatment at low temperatures, Golden Melon Variety B showed the highest pollen viability. Storage treatment took effect on the percentage of the number and the weight of the fruits produced. The 0-day storage treatment at low temperature showed the optimum yield. Pollen viability was positively correlated with fruit weight.