DANNY RIANDIKA PRASTOWO, 0914071026 (2015) PENGGUNAAN MODEL CROPWAT UNTUK MENDUGA EVAPOTRANSPIRASI STANDAR DAN PENYUSUNAN NERACA AIR TANAMAN KEDELAI (Glycine max (L) Merrill) DI DUA LOKASI BERBEDA. FAKULTAS PERTANIAN, UNIVERSITAS LAMPUNG.
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Abstrak (Berisi Bastraknya saja, Judul dan Nama Tidak Boleh di Masukan)
Penelitian ini bertujuan menduga evapotranspirasi standar (ETo) untuk menyusun neraca air tanaman kedelai sebagai dasar rekomendasi jadwal tanam di wilayah Masgar dan Terbanggi Besar berdasarkan CROPWAT. Penelitian ini dilaksanakan pada bulan November 2014 - Januari 2015 di Jurusan Teknik Pertanian Fakultas Pertanian Universitas Lampung, Stasiun Klimatologi Masgar Kabupaten Pesawaran Provinsi Lampung dan Stasiun Meteorologi Pertanian Khusus PT. Great Giant Pineapple Terbanggi Besar Kabupaten Lampung Tengah. Data iklim dari wilayah Masgar dan Terbanggi Besar dianalisis dengan CROPWAT untuk menghitung ETo. Nilai ETo, koefisien tanaman (Kc) dan sifat fisik tanah digunakan untuk menyusun neraca air tanaman kedelai dengan CROPWAT dan kemudian dibandingkan dengan metode Thornthwite and Mather. Neraca air tanaman digunakan untuk menentukan rekomendasi jadwal tanam kedelai. Rata-rata ETo harian di wilayah Masgar sebesar 3,7 mm, rata – rata bulanan sebesar 111,1 mm dan total tahunan sebesar 1333,3 mm. Sedangkan rata – rata ETo harian di wilayah Terbanggi Besar sebesar 3,4 mm, rata – rata bulanan sebesar 102,7 mm dan total tahunan sebesar 1334,6 mm. Jadwal tanam kedelai di wilayah Masgar pada periode bulan Februari-April dengan total evapotranspirasi tanaman (ETc) sebesar 256,1 mm (CROPWAT) dan sebesar 268,1 mm (metode Thornthwite and Mather). Begitu juga di wilayah Terbanggi Besar pada periode bulan Februari-April dengan total ETc sebesar 227,4 mm (CROPWAT) dan sebesar 241,2 mm (metode Thornthwite and Mather). Untuk memanfaatkan lahan, maka dapat dikombinaskian dengan komoditas lain. Di wilayah Masgar dan Terbanggi Besar dapat diterapkan pola tanam Jagung-Kedelai. Kata Kunci : cropwat, evapotranspirasi, neraca air, kedelai ABSTRACT APPLICATION OF CROPWAT MODELS TO ESTIMATE THE REFERENCE EVAPOTRANSPIRATION AND COMPOSING THE CROP WATER BALANCE OF SOYBEAN (Glycine Max (L) Merril) IN TWO DIFFERENT LOCATION The objective of this research was to estimate the reference evapotranspiration (ETo) for composing the crop water balance of soybean and planting schedules recommendation based on CROPWAT in Masgar and Terbanggi Besar area. This research was conducted on November 2014 – January 2015 in Agricultural Engineering Departement of Faculty of Agriculture, Lampung University, Masgar Climate Stations of Pesawaran District in Lampung and Specific Agricultural Meteorological Stations of PT. Great Giant Pineapple in Terbanggi Besar, Centra of Lampung. Climate data from Masgar and Terbanggi Besar area was analyzed by CROPWAT to calculate the ETo. Value of ETo, crop coefficient (Kc) and soil physical properties used to compose the crop water balance of soybean by CROPWAT, and than compared with Thornthwite and Mather method. Crop water balance used to determine the plant schedules recommendation of soybean. Daily ETo average in Masgar area was 3,7 mm, the monthly average was 111,1 mm and the total annual was 1333,3 mm. While the ETo daily average in Terbanggi Besar area was 3,4 mm, the monthly average was 102,7 mm and the total annual was 1334,6 mm. Plant schedules of soybean in Masgar area was February – April period with total crop evapotranspiration (ETc) was 256,1 mm (CROPWAT) and 268,1 mm (Thornthwite and Mather method). As well as in Terbanggi Besar area was February – April period with total ETc was 227,4 mm (CROPWAT) and 241,2 mm (Thornthwite and Mather method). To utilize the land, it can be combined with other commodities. In Masgar and Terbanggi Besar, corn – soybean can be applied as cropping pattern. Keywords : cropwat, evapotranspiration, water balance, soybean
| Jenis Karya Akhir: | Skripsi |
|---|---|
| Subyek: | > Budidaya tanaman |
| Program Studi: | Fakultas Pertanian dan Pascasarjana > Prodi Teknik Pertanian |
| Pengguna Deposit: | 4762027 . Digilib |
| Date Deposited: | 13 Jan 2016 04:36 |
| Terakhir diubah: | 13 Jan 2016 04:36 |
| URI: | http://digilib.unila.ac.id/id/eprint/16980 |
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