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All Journal Agrokompleks Jurnal Agrisistem: Seri Sosek dan Penyuluhan Journal of Agriculture and Applied Biology ( JAAB) Jurnal Agrisistem
Kaharuddin Kaharuddin
Politeknik Pembangunan Pertanian (Polbangtan) Gowa
Agriculture, Biological Sciences & Forestry Environmental Science Social Sciences

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Methane emission and rice growth on clayey soil under controlled water regime Kaharuddin Kaharuddin; Sikstus Gusli; Muh Jayadi; Amirullah Dachlan; Andi Muh. Ilham
Journal of Agriculture and Applied Biology Vol 3 No 2 (2022): Journal of Agriculture and Applied Biology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jaab.03.02.05

Abstract

Conventional lowland rice cultivation involves flooding the paddy from planting to close to harvest, and high N fertilization. This practice leads to large amount of methane emissions. We studied the effect of soil water regime control on methane gas emissions and growth of several rice varieties on clayey soil. The experiment was arranged according to Split Plot Design. The main plot was water regime, i.e. continuous flooding (2-cm inundation), and intermittent flooding (flooded 2 cm then allowed to dry until the soil started to cracks). The sub-plots consisted of 3 rice varieties, i.e. Inpari 32, Mekongga, and Cisadane. Together, there were six treatment combinations, repeated 4 times. We measured methane emission, plant height, number of tillers per clump, number of productive tillers, and root volume. We computed analysis of variance, then performed Duncan Multiple Range Test. We found, at 57 and 73 days after planting, continuous flooding resulted in much (statistically) higher methane gas emissions than intermittent flooding (about 2 times greater for both Inpari and Cisadane, and 5 times greater for Mekongga). The two water regimes examined did not result in differences in plant height, number of tillers, productive tillers and root volume of the three varieties, although the flooded treatment tended to slightly give taller plant, more tillers and productive tillers. In conclusion, intermittent flooding significantly suppresses methane emission compared to continuous flooding. However, certain rice variety produces more methane than others. While intermittent flooding reduced methane emission, it did not statistically affect rice growth compared to continuous flooding.
RESPONS PETANI TERHADAP APLIKASI PUPUK ORGANIK CAIR D.I.GROW GREEN DAN PUPUK ORGANIK KOTORAN SAPI PADA TANAMAN SAWI PAKCOY PUTIH (Brassica cinensis L.): Farmers' Response to the Application of D.I.Grow Green Liquid Organic Fertilizer And Organic Cow Manure Fertilizer On White Pakcoy Mustard Plants (Brassica cinensis L.) Kaharuddin Kaharuddin; Hambali Hambali; Ismaya N. R Parawansa
Jurnal Agrisistem: Seri Sosek dan Penyuluhan Vol. 19 No. 2 (2023): Jurnal Agrisistem: Seri Sosek dan Penyuluhan
Publisher : Unit Penelitian dan Pengabdian Masyarakat Politeknik Pembangunan Pertanian Gowa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52625/j-agr-sosekpenyuluhan.v19i2.291

Abstract

Sawi pakcoy putih (Brassica cinensis L.) merupakan sayuran yang mengandung vitamin/mineral sebagai antioksidan. Sayuran ini budidayakan petani karena meningkatnya permintaan sayuran segar guna memenuhi kebutuhan penduduk yang meningkat setiap tahun. Penelitian dilaksanakan di lahan BPP Galesong Utara Kabupaten Takalar, percobaan disusun berdasarkan rancangan acak kelompok, dengan 4 perlakuan, yaitu: P0 (tanpa pemberian POC D.I.Grow Green dan pupuk organik kotoran sapi), P1 (POC D.I.Grow Green 4 mL L-1 air dan pupuk organik kotoran sapi 4 ton ha-1), P2 (POC D.I.Grow Green 8 mL L-1 air dan pupuk organik kotoran sapi 8 ton ha-1), dan P3 (POC D.I.Grow Green 12 mL L-1 air dan pupuk organik kotoran sapi 12 ton ha-1). Perlakuan tersebut diulang sebanyak 3 kali. Kegiatan penyuluhan dilaksanakan di Kelompoktani Kampung Nene’ Galesong Utara. Parameter pengamatan, yaitu: tinggi tanaman, jumlah daun, berat segar, tingkat pengetahuan, sikap, keterampilan petani, serta efektivitas penyuluhan. Hasil penelitian menunjukkan bahwa P1 menghasilkan tinggi tanaman tertinggi pada 7 HST (11,37 cm) dan 14 HST (20,73 cm), sedangkan perlakuan P3 tertinggi pada 21 HST (27,40 cm) dan 28 HST (27,67 cm). Untuk jumlah daun, P1 tertinggi pada 7 HST (5,07 helai) dan 14 HST (8,47 helai), sedangkan perlakuan P2 tertinggi pada 21 HST (10,73 helai) dan 28 HST (13,87 helai). Untuk berat segar, P3 menghasilkan berat segar tertinggi yaitu 18 ton ha-1 dan berbeda nyata dengan perlakuan lainnya. Respons petani menunjukkan peningkatan yang signifikan, yaitu pengetahuan 35,20%, sikap (kesetujuan) 26,04%, dan keterampilan 29,17%, dengan efektivitas penyuluhan sebesar 69,44% dengan kategori efektif.
Aplikasi Beberapa Rekomendasi Pemupukan Dan Dampaknya Terhadap Pertumbuhan Dan Produksi Jagung Pulut (Zea mays ceratina L.): Application Of Some Fertilization Recommendations And Its Impact On Growth And Production Of Waxy Corn (Zea mays ceratina L.) Nurdin, Linda; Rukka, Hermaya; Kaharuddin, Kaharuddin
Jurnal Agrisistem Vol. 19 No. 2 (2023): Jurnal Agrisistem
Publisher : Unit Penelitian dan Pengabdian Masyarakat Politeknik Pembangunan Pertanian Gowa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52625/j-agr.v19i2.296

Abstract

Tanaman jagung membutuhkan unsur hara yang cukup untuk mendukung pertumbuhannya, tetapi seringkali dalam praktiknya, pemupukan dilakukan dengan dosis yang tidak sesuai dengan fase pertumbuhan tanaman, sehingga pertumbuhan tanaman menjadi terganggu dan produksi yang diperoleh tidak optimal. Penelitian ini dilaksanakan di Desa Samangki, Kecamatan Simbang, Kabupaten Maros, dari Maret sampai dengan Juni 2020. Penelitian disusun berdasarkan Rancangan Acak Kelompok (RAK) yang terdiri atas 3 perlakuan, yaitu P0 (pemupukan berdasarkan kebiasaan petani, sebagai kontrol), P1 (Pemupukan berdasarkan KATAM Terpadu), dan P2 (Pemupukan berdasarkan bagan warna daun, BWD). Hasil penelitian menunjukkan bahwa pemupukan berdasarkan BWD menghasilkan tinggi tanaman tertinggi, pada 14 HST (39,17 cm), 28 HST (113,33 cm), dan 35 HST (175,67 cm) dan berbeda nyata dengan pemupukan berdasarkan kebiasaan petani. Begitu juga pada jumlah daun, pemupukan berdasarkan BWD tertinggi pada 21 HST (6,40 helai), 28 HST (8,00 helai), dan 35 HST (8,73 helai) dan berbeda nyata dengan pemupukan berdasarkan kebiasaan petani. Pemupukan berdasarkan KATAM Terpadu memberikan hasil berat segar tertinggi yaitu (120,53 g plot-1), walaupun berbeda tidak nyata dengan pemupukan berdasarkan BWD (105,00 g plot-1) tetapi berbeda nyata dengan pemupukan berdasarkan kebiasaan petani (84,55 g plot-1).
Produksi Tanaman Selada Merah Secara Vertikultur dengan Pemberian POC Jakaba : Production of Red Lettuce Plant by Verticulture Using Jakaba POC A. Farhanah; Hamzah, Faisal; Kaharuddin; Atika; Fariz Pari, Rizfi
Jurnal Agrisistem Vol. 20 No. 1 (2024): Jurnal Agrisistem
Publisher : Unit Penelitian dan Pengabdian Masyarakat Politeknik Pembangunan Pertanian Gowa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52625/j-agr.v20i1.309

Abstract

Currently, sustainable agriculture is needed to meet human needs in the long term, one of which is the use of organic matter. Jakaba is currently a very interesting novelty to test on plants. Therefore, this study was carried out to determine the effect of Jakaba fertilizer on the production of red lettuce plants verticulturally.The method used was a two-factor Random Group Design with nine types of treatments and three repeats. The first factor is POC Jakaba and the second factor is NPK fertilizer.The results showed that the application of jakaba fertilizer combined with NPK had a significant effect on increasing the height, number of leaves, root volume, and fresh weight of verticulture red lettuce plants and the application of jakaba fertilizer as much as 50% combined with NPK as much as 1 g per plant was effective in increasing the fresh weight of verticulture red lettuce plants. The conclusion obtained is that there is an influence of POC Jakaba on increasing the production of red lettuce plants verticulturally, especially in increasing the fresh weight of the plant.
Co-Authors A. Farhanah A. Farhanah Abdurrahman Pona Amirullah Dachlan Andi Muh. Ilham atika Atika Atika Buhaerah Buhaerah Dahlan Dahlan Faisal Hamzah Faisal Hamzah Fariz Pari, Rizfi Fredrik H. Kakisina Hambali Hambali Hermaya Rukka Ismaya N. R Parawansa Ismaya NR Parawansa Khoeruroji Wibowo Muh. Askari Kuruseng Muh. Jayadi Muhammad Nathan Nurdin, Linda P. Tandi Balla Ramli Ratna Dewi Saleh Rosmawati Nur Rukka, Hermaya Saleh Saleh Sikstus Gusli Siswanto Siswanto Supoyo Supoyo Syaifuddin Syaifuddin