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All Journal Journal of Tropical Soils Journal of Degraded and Mining Lands Management Agroekoteknologi Tropika Lembab
Aktavia Herawati
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science

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Planning of banana plant development based on the land conservation aspect in Jenawi District Indri Hapsari Pusponegoro; M Mujiyo; S Suntoro; Aktavia Herawati; Hery Widijanto
Journal of Degraded and Mining Lands Management Vol 5, No 4 (2018)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1995.966 KB) | DOI: 10.15243/jdmlm.2018.054.1319

Abstract

Banana is one type of fruits that is very potential to grow to support food security because it contains source of vitamins, minerals, and carbohydrates. Jenawi District has a dry land area that is potential for the development of banana plants. The purpose of this research was to plan the development of banana plants in accordance with the land conservation aspect against the threat of the erosion. The research was conducted by making land unit map, field survey, analysis of soil sample in the laboratory, and data analysis of erosion hazard level. Land unit mapping was made by overlay method so there were 12 units of land with the same land conditions. Field survey and sample analysis at the observation point was conducted to obtain the parameters: slope gradient, depth of solum, surface unity, slope length, bulk density, soil texture, soil c-organic, and soil permeability. The analysis of land conservation aspects for banana plants was determined from the level of erosion hazard with the USLE (Universal Soil Loss Equation) method. The results showed that the threat of moderate to severe erosion hazard for banana crops was overcome by the efforts of land conservation techniques using a good construction bench terrace. The threat of erosion hazard after land conservation directives is very low to low. The amount of the erosion prediction for banana plant planning in garden is 35.80 t/ha/yr (unit B unit), land use of dry fields  is 29.82 t/ha/yr (land unit I), 31.54 t/ha/yr (land unit K), and 13.72 t/ha/yr (unit land L).
Rice Quality and Yield at Various Application Times of Organic Rice Management System Jauhari Syamsiyah; Dwi Priyo Ariyanto; Aktavia Herawati; Komariah Komariah; Sri Hartati; Fitri Nurbaiti
JOURNAL OF TROPICAL SOILS Vol 28, No 1: January 2023
Publisher : UNIVERSITY OF LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5400/jts.2023.v28i1.9-15

Abstract

The higher national rice demand encourages various efforts to increase rice production. This increase in rice production occurs in line with increasing public awareness of healthy foods, especially organic rice. Rice field management with an organic system is expected to provide a higher yield and quality of rice. This study aims to determine the effect of the long-time application of an organic rice management system on rice yield and quality. Descriptive exploratory research is supported by laboratory analysis of samples of organic rice plants with three periods (10 years, 7 years, and 4 years), semi-organic and conventional. The parameters observed were dry harvested grain, dry milled grain, the weight of 1000 grains, unfilled grain, protein content, amylum, amylopectin, and reducing sugar. The most prolonged organic rice field management with the application of 10 years gives better results with a protein content of 6.14%, amylum 71.71%, and amylopectin 49.35%. While the application of organic farming for 7 years gives the highest rice yield, the difference is not confirmed with the application of organic 10 years, with the weight of dry grain harvest 10.44 Mg ha-1, dry milled grain 8.15 10.44 Mg ha-1, the weight of 1000 grains 24 g, and unfilled grain 3.8%.
Evaluasi Masa Tanam Berdasarkan Metode Standardized Precipitation Index (SPI) dan Indeks Kecukupan Air (IKA) untuk Pengembangan Produksi Jagung di Giritontro, Indonesia Ganjar Herdiansyah; Ummi Nur Fitriana; Sumani Sumani; Mujiyo Mujiyo; Aktavia Herawati
Jurnal Agroekoteknologi Tropika Lembab Vol 5, No 2 (2023): Agroekoteknologi Tropika Lembab Volume 5 Nomor 2 Februari 2023
Publisher : Mulawarman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35941/jatl.5.2.2023.9979.152-162

Abstract

Berubahnya durasi musim menjadikan pergantian musim kemarau dan musim hujan tidak menentu. Tanaman pangan yang dibudidayakan pada lahan sawah tadah hujan dan tegalan seperti jagung mudah mengalami cekaman karena ketersediaan air dipengaruhi oleh iklim. Penelitian ini bertujuan untuk mengetahui SPI (Standardized Precipitation Index) dan Indeks Kecukupan Air (IKA) guna menentukan masa tanam yang tepat untuk tanaman jagung di Kecamatan Giritontro, Kabupaten Wonogiri. Pelaksanaan penelitian dengan metode deskriptif eksploratif, data curah hujan rata-rata Kecamatan Giritontro 1.750-2.250 mm per tahun. Metode yang digunakan adalah Standardized Precipitation Index dan Indeks Kebutuhan Air, dengan alat analisa berupa aplikasi Rstudio dan Cropwat 8.0 yang mengolah data curah hujan dalam 9 tahun terakhir (tahun 2012 sampai 2020). Titik pengamatan dan pengambilan sampel tanah ditentukan menggunakan data spasial (curah hujan, penggunaan lahan, kemiringan lereng, dan jenis tanah) wilayah penelitian. Parameter kondisi aktual tanah yang diamati diantaranya kadar lengkap, struktur tanah, tekstur tanah, dan bahan organik. Data-data yang diperoleh dari hasil penelitian diolah dengan uji ANOVA dan Pearson correlation. Penghitungan indeks kekeringan menggunakan metode Standardized Precipitation Index (SPI) dengan aplikasi Rstudio dan Indeks Kecukupan Air (IKA) dengan aplikasi Cropwat 8.0 berdasarkan data curah hujan pos BBWS di Giriwoyo. Kondisi tanah aktual diamati diantaranya kadar lengas, struktur tanah, tekstur tanah, bahan organik, data curah hujan 9 tahun terakhir (2012-2020), data spasial Kecamatan Giritontro untuk peta pengamatan dan pengambilan sampel. Analisis data yang dilakukan ialah uji korelasi antara indeks kekeringan dengan indikator pengamatan. Hasil indeks kekeringan rata–rata wilayah penelitian pada tahun 2012–2020 termasuk kategori mendekati normal berkisar antara -0,94-0,87. Indeks kekeringan berhubungan dengan tesktur tanah dan dipengaruhi oleh kemiringan lereng. Indeks kecukupan air tanaman jagung antara 0,47–0,91 dari bulan Januari sampai Desember. Penentuan awal masa tanam paling efektif pada bulan November. Alternatif pencadangan air tanah dapat melalui pembuatan dam parit yang berfungsi sebagai penampung aliran air permukaan.
Co-Authors Dwi Priyo Ariyanto Fitri Nurbaiti Ganjar Herdiansyah Hery Widijanto Indri Hapsari Pusponegoro Jauhari Syamsiyah Komariah Komariah Mujiyo Mujiyo S Suntoro Sri Hartati Sumani Sumani Ummi Nur Fitriana