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Journal : Asia Pacific Journal of Sustainable Agriculture, Food and Energy (APJSAFE)

Effect of Climate Variables in Rice Yield in Nueva Ecija, Philippines Enovejas, Andro M.; Maldia, Sharmaine; Komarudin, Nurul Amri; Vergara, Dante Gideon K.; Hilmi, Yahya Shafiyuddin; Sevilla-Nastor, Janice B.
Asia Pacific Journal of Sustainable Agriculture, Food and Energy Vol. 9 No. 1 (2021): June 2021
Publisher : Asia Pacific Network for Sustainable Agriculture, Food and Energy Network (SAFE Network)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36782/apjsafe.v9i1.77

Abstract

Climate variability is one of the factors that directly and greatly affect cropping system and plant yield. It is therefore very important to obtain a good understanding about climate variability or changes in the climate and the effect of these changes to clearly understand the vulnerability of food crops as well as its agronomic impacts for us to create and implement adaptive strategies to mitigate its negative effects. This study assessed the effect of climate in rice crop yield in both irrigated and rainfed ecotype farming system in Nueva Ecija Province in the Philippines using semi-annual yield data and the different climate variables such as seasonal rainfall, mean temperature, minimum temperature, and relative humidity by using empirical/statistical method through time series analysis, and correlation analysis. Results indicated that rice yield for irrigated and rainfed ecosystem type of farming in Nueva Ecija show an overall increasing trend from year 1991-2018, although there are observed decline and fluctuations in some years. The different climate variables (i.e., rainfall, temperature, and humidity) show fluctuating trends and irregularities spanning from the year 1991-2018. But it showed overall decreasing trends for relative humidity and increasing trends for rainfall, minimum temperature, and mean temperature. There are significant correlations between rice yield the all the climate variables in both irrigated and rainfed farming ecosystem types.
Exposure to Ammonia Concentration from the Processing of Crumb Rubber on Environmental Quality: A Review Komarudin, Nurul Amri; Tarigan, Elsera Br; Shafiyuddin Hilmi, Yahya; Velasco, Ashemir B
Asia Pacific Journal of Sustainable Agriculture, Food and Energy Vol. 10 No. 1 (2022): June 2022
Publisher : Asia Pacific Network for Sustainable Agriculture, Food and Energy Network (SAFE Network)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36782/apjsafe.v10i1.127

Abstract

Nowadays, processed natural rubber products such as crumb rubber have become the demands of global consumers who are oriented towards export markets. Therefore, the economic impact is felt more, but there are still other consequences. The consequences are not only economically beneficial but can also be detrimental to environmental conditions. The process of making natural rubber into crumb rubber causes a negative impact by means of air pollution in the form of odour, which is rarely noticed. The purposes of this study were to analyse the ammonia concentration resulting from the processing of natural rubber into crumb rubber, and to identify the impact of ammonia contamination on the environment, particularly human health. This research was conducted using a review method with the help of colandr machine learning. The results of the review show that the concentration of ammonia produced from the processing of natural rubber into crumb rubber in Indonesia has passed the specified quality standard threshold. It is found to impact the environment such as damage to aquatic ecosystems and air quality, as well as effects on human health such as respiratory problems.
Chitosan and Drying Temperature Optimization on the Quality of Bage Lemuru Fish using RSM Methods Afgani, Chairul Anam; Mikhratunnisa; Hadi, Sofyan; Komarudin, Nurul Amri; Nuraisyah, Anni; Isworo, Rhestu
Asia Pacific Journal of Sustainable Agriculture, Food and Energy Vol. 11 No. 1 (2023): June 2023
Publisher : Asia Pacific Network for Sustainable Agriculture, Food and Energy Network (SAFE Network)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36782/apjsafe.v11i1.167

Abstract

Bage is a traditional fermented fish in Sumbawa made from lemuru fish (Sardinella lemuru). The aims of this study were to determine the chemical properties (moisture content and crude protein), microbial properties, and the panellist’s preferences for bage fish products after the addition of chitosan during the process. Optimization analysis using Response Surface Methodology showed that the temperature acquired was 60.93˚C. The chitosan concentration amounted to 3.51%, resulting in a water content of 23.47% and protein content of 49.91%. The number of microbial colonies in all treatments did not exceed the maximum limit of salted fish category product, based on SNI 8273 – 2016, but the fungal growth was found in samples with a temperature of 53 and 55˚C on the 20th day. The highest level of panellist preference for taste and aroma of bage fish was at a treatment temperature of 60 ° C with the addition of chitosan 4.62%, whereas the best texture was obtained by treatment at a temperature of 53˚C with the addition of 4.62% chitosan
Assessing the sustainability and resilience of cacao-cased farming systems in Pili, Camarines Sur, the Philippines Komarudin, Nurul Amri; Wai, Eaint Thet; Rohman, Nusron Habibur; Endonela, Leah
Asia Pacific Journal of Sustainable Agriculture, Food and Energy Vol. 13 No. 1 (2025): June 2025
Publisher : Asia Pacific Network for Sustainable Agriculture, Food and Energy Network (SAFE Network)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36782/apjsafe.v13i1.484

Abstract

Camarines Sur, located in the Bicol Region of the Philippines, is considered one of the most climate-vulnerable provinces. Despite this, it is a model for a robust and proactive disaster risk reduction and management (DRRM) program. The province features a diverse agroecological landscape, ranging from hilly and rolling terrains to plains surrounding Mt. Isarog National Park, which covers an area of 10.112 hectares with an elevation reaching 1.966 meters above sea level. Farming systems include monocropping, intensive multiple cropping, and agroforestry, with sugarcane and corn on downslopes, groundnuts and vegetables on lower slopes, and irrigated or rainfed rice fields. The integration of cacao (Theobroma cacao L.) is increasingly being explored as a means to enhance both the sustainability and resilience of these farming systems. This study aims to assess the sustainability and resilience of cacao cultivation at the farm level in Barangay Binanuanan, Pili, Camarines Sur. A qualitative research design was employed, utilizing semi-structured interviews with local government officials, focus group discussions with farmers, and a Strengths, Opportunities, and Challenges (SOC) analysis. Findings indicate that cacao farming contributes to economic sustainability, as most farmers benefit from diversified income sources, including off-farm employment and family financial support. Ecological sustainability is supported by cacao’s compatibility with existing farming practices. However, social resilience remains limited, as evidenced by the aging farming population and minimal youth engagement in agriculture. To strengthen overall system resilience, targeted interventions promoting youth participation and community engagement in cacao-based farming are recommended.