Initial Analysis of the Rainy Season for the Determination of Rice Planting Time in Jembrana Regency
Abstract
Jembrana Regency located in Bali Province is one of the districts that have land good enough to be managed. However, some of the area still has the potential to be developed into agricultural land. Analysis of water availability, especially for rice plants, needs to be carried out to determine the time of planting rice, and aims to increase land productivity. The calculation method used is land water balance and plant water balance. The results of the calculation in the form of the percentage of water available for rice plants are used as a reference to determine the planting period in the form of rice planting patterns. From the results of the study, it was found that the decrease in the value of groundwater availability (GA) occurred due to a decrease in rainfall from June to August of around 9 bases to be below Field Capacity (FC). The GA value increases when the rainy season starts from January to April for period I and from September to December for Period II. Rice planting time in Jembrana Regency generally has 2 plantings because it is influenced by availability of groundwater and Rainfall.
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References
[2] F. Irsyad, Penentuan Awal dan Durasi Musim Kamarau menggunakan Fungsi Polynomial dengan Aplikasi Visual Basic for Applications (VBA), Tugas Akhir, Program Studi Teknik Pertanian, Universitas Andalas, 2014.
[3] J. Fadholi, Sistem Pola Tanam di Wilayah Priangan Berdasarkan Klasifikasi Iklim Oldeman, Jurnal Stasiun Meteorologi Depati Amir, vol. 23, no. 12, 2019, pp. 1435-1452.
[4] V. Andika, Analisis Ketersediaan Air Tanah untuk Pola Tanam Padi di Kabupaten Banyuwangi, Tugas Akhir, Program Sarjana Terapan Klimatologi, Sekolah Tinggi Meteorologi Klimatologi dan Geofisika, 2016.
[5] E. Gusmira, Model Fuzzy Logic Berbasis Anfis dalam Penentuan Pola Tanam Oryza Sativa, Tugas Akhir, UIN Sulthan Thaha Saifuddin, 2018.
[6] D. Apriyana, Variabilitas Iklim dan Dinamika Waktu Tanam Padi di Wilayah Pola Hujan Monsunal dan Equatorial, Jurnal Balai Pendidikan Agroklimat dan Hidrologi, vol. 4, no. 2, 2008, pp. 5-6.
[7] M. J. Killa, Penentuan Pola Tanam Padi dan Jagung Berbasis Neraca Air di Kecamatan Lewa Kabupaten Sumba Timur, Jurnal Jurusan Magister Ilmu Pertanian, Fakultas Pertanian dan Bisnis, Universitas Kristen Satya Wacana, vol. 8, no. 309,.2008, pp..40-50.
[8] T. Widodo, Kajian ketersediaan air tanah terkait pemanfaatan lahan di kabupaten Blitar, Jurnal Pembangunan Wilayah dan Kota, vol. 9, no..2, 2013, pp. 122-133.
[9] H. R. Soedireja, Potensi dan upaya pemanfaatan air tanah untuk irigasi lahan kering di Nusa Tenggara, Jurnal Irigasi, vol. 11, no. 2, 2017, pp. 67-80.
[10] L. Ulfah, Penentuan Kriteria Awal Musim Alternatif di Wilayah Jawa Timur, Tugas Akhir, Sekolah Tinggi Meteorologi dan Geofisika, 2017.
[11] N. A. Song, Karakter Morfologi Akar sebagi Indikator Kekurangan Air pada Tanaman, Tugas Akhir, Jurusan Biologi FMIPA, Universitas Sam Ratulangi, 2013.
[12] K. Murtilaksono, Hubungan Ketersediaan Air Tanah dan Sifat-Sifat Dasar Air Tanah, Jurnal Pertanian, Fakultas Pertanian, IPB Bogor, vol. 12, no. 2, 2004, pp. 3-6.
