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All Journal Asia Pacific Journal of Sustainable Agriculture, Food and Energy (APJSAFE)
Nurul Amri Komarudin
IPB University
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Energy Environmental Science

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Effect of Climate Variables in Rice Yield in Nueva Ecija, Philippines Andro M. Enovejas; Sharmaine Maldia; Nurul Amri Komarudin; Dante Gideon K. Vergara; Yahya Shafiyuddin Hilmi; Janice B. Sevilla-Nastor
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 Nurul Amri Komarudin; Elsera Br Tarigan; Yahya Shafiyuddin Hilmi; Ashemir B Velasco
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.
Co-Authors Andro M. Enovejas Ashemir B Velasco Dante Gideon K. Vergara Elsera Br Tarigan Janice B. Sevilla-Nastor Sharmaine Maldia Yahya Shafiyuddin Hilmi Yahya Shafiyuddin Hilmi