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All Journal Agrienvi : Jurnal Ilmu Pertanian Acitya Wisesa: Journal of Multidisciplinary Research
Redin, Herry
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Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Computer Science & IT Environmental Science Physics

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DINAMIKA POPULASI HAMA DAN PENYAKIT UTAMA PADA TANAMAN CABAI MERAH (Capsicum annuum L.) DI KOTA PALANGKA RAYA Agustini, Sri; Redin, Herry; Kulu, Ici Piter; Amelia, Vera; Surawijaya, Panji; Ludang, Yetrie
Agrienvi: Jurnal Ilmu Pertanian Vol. 17 No. 2 (2023): Journal Agrienvi
Publisher : Agrienvi: Jurnal Ilmu Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/aev.v17i2.12662

Abstract

Pests and disease are one of the factors that cause yield loss of red chilli. Knowledge of the population dynamics of the main pests and diseases of red chilli can be used as the basis for recommendations for pest and disease control. The research aims to analyze pests and diseases population dynamics on red chilli cultivation, the influence of environmental factors and the influence of population dynamics on red chilli production. This research was conducted in Kereng Bangkirai Village Sebangau District, Kalampangan Village Sebangau District and Tanjung Pinang Village Pahandut District, Palangka Raya City. The research was conducted from December 2022 to March 2023. The research using a quantitative descriptive method. The sample plants used the diagonal plot sampling method, with an area of 4 m x 4 m. Observation were made in the morning once a week from transplanting to harvesting. The result showed that the dynamics of the main pest population of red chilli plants was influenced by the availability of food, the population of red chilli pests was high when the condition of the plant organs (leaves) was still at a young age which was suitable for its feed designation, the dynamics of anthracnose disease was influenced by temperature and humidity; Temperature and humidity do not always have a significant effect on pest and disease population dynamics. Fluctuating pest populations are influenced by the cultivation system applied by farmers, especially the use of synthetic pesticides; The higher number of pest and disease populations cause less production of red chilli plants.
HEC-RAS Simulation of Flood Management in Seruyan River: A Case Study of Mekar Indah Village, East Seruyan Hilir and UPT Tanggul Harapan Pematang Limau Village, Seruyan Hilir Zulianto, Iwan; Yusuf, Noor Syarifuddin; Nomeritae; Redin, Herry; Amelia, Vera; Misrita
Acitya Wisesa: Journal Of Multidisciplinary Research Vol. 1 Issue 3 (2022)
Publisher : jfpublshier

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (230.756 KB)

Abstract

In 2020 and 2021, there was a big flood in (Technical Implementation Unit) UPT Tanggul Harapan, Pematang Limau Village, Seruyan Hilir District and Mekar Indah Village, Seruyan Hilir Timur District and it forced some people to flee their homes. The overflowing of Seruyan River is caused by high intensity of rain and river flooding from the headwaters of Seruyan. This condition occurred because of Mekar Indah Village and UPT. Tanggul Harapan is in a downstream location. The main objective of this research is to find out the effective way of controlling floods in the Seruyan River. The calculation result of flood peak volume is obtained by using the synthesis of hydrograph units using the SCS and Snyder methods. The results of this research indicated that the design of periodic re-rain for 50 years prior to the handling of floods in the area of UPT Tanggul Harapan occurred flooding of 94.96% of the entire area of UPT Tanggul Harapan. Meanwhile, in Mekar Indah Village occurred 40.72%, after simulating flood handling in making an embankment along 20111 m, elevation 5 m above sea level, top width of the embankment 5 m and 4 units of floodgates. It indicated a significant change in the flood area in UPT Tanggul Harapan to only 1.23%, while in Mekar Indah Village it is 0.80%. The simulation result indicated that flood management by making embankment is able to reduce the flood area by 93.19% in UPT Tanggul Harapan and 39.92% in Mekar Indah Village
Co-Authors Kulu, Ici Piter Ludang, Yetrie Misrita Nomeritae Sri Agustini Surawijaya, Panji Vera Amelia Yusuf, Noor Syarifuddin Zulianto, Iwan