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All Journal Jurnal Ilmu Pertanian Indonesia Jurnal Hortikultura Indonesia Jurnal Ilmu Tanah dan Lingkungan (Journal of Soil Science and Environment) Journal of Tropical Soils Journal of Degraded and Mining Lands Management AGRIVITA, Journal of Agricultural Science Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) SAINS TANAH - Journal of Soil Science and Agroclimatology Jurnal Tanah dan Iklim
Hartono, Arif
Departemen Ilmu Tanah dan Sumberdaya Lahan, Fakultas Pertanian, IPB, Jalan Meranti, Kampus IPB Darmaga 16680
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Environmental Science

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Journal : Jurnal Hortikultura Indonesia

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Pengelolaan dan Pemupukan Fosfor dan Kalium pada Pertanian Intensif Bawang Merah di Empat Desa di Brebes Muliana; Syaiful Anwar; Arief Hartono; Anas D. Susila; Supiandi Sabiham
Jurnal Hortikultura Indonesia Vol. 9 No. 1 (2018): Jurnal Hortikultura Indonesia
Publisher : Indonesian Society for Horticulture / Department of Agronomy and Horticulture

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (423.407 KB) | DOI: 10.29244/jhi.9.1.27-37

Abstract

ABSTRACTThe management and fertilization of shallot cultivation in Brebes is very intensive. The purpose of this research was to study crop management and phosphorus (P) and potassium (K) fertilizations of shallot cultivation by smallholder farmers in four villages in Brebes. The data were collected through survey method, interview, and questionnaires to 14 respondent farmers, and analysis of P and K content of farmer's soil samples. The results showed that the cropping index (IP) was 400-500% comprised of three to four times of shallot cultivation and one rice cultivation. The fertilizations of P and K were 22-171 kg of P2O5 ha-1 and 22-213 kg K2O ha-1, respectively, while the recommended rates were 54 kg P2O5 ha-1 and 78 kg K2O ha-1, respectively. This varied fertilizations were not significantly correlated with productions, except fertilization of K with production in rainy season that was significantly correlated at P < 0.05 (n = 14, r = 0.532). The soil P status was very high at all locations and at all depths (0 - 80 cm), while the soil K status ranged from medium to very high. Keywords: nutrient accumulation, nutrient availability, nutrient residue, nutrient status, smallholder farmersABSTRAKPengelolaan dan pemupukan pada budidaya bawang merah di Brebes sangat intensif. Tujuan penelitian ini ialah mengkaji pengelolaan pertanaman dan pemupukan fosfor (P) dan kalium (K) bawang merah yang dilakukan petani di empat desa di Brebes. Pengumpulan data dilaksanakan melalui metode survei, wawancara, dan pengisian kuisioner kepada 14 petani responden, dan analisis kadar P dan K sampel tanah lahan petani responden. Hasil penelitian menunjukkan bahwa indeks pertanaman (IP) adalah 400-500% dengan pertanaman bawang merah tiga sampai empat kali dan satu kali pertanaman padi. Pemupukan P dan K berturut-turut berkisar 22–171 kg P2O5 ha-1 dan 22–213 kg K2O ha-1, sementara rekomendasi Distan Brebes berturut-turut adalah 54 kg P2O5 ha-1 dan 78 kg K2O ha-1. Pemupukan bervariasi ini tidak berkorelasi nyata dengan produksi, kecuali pemupukan K dengan produksi pada musim hujan yang berkorelasi nyata pada taraf 5% (n=14, r=0.532). Status P tanah sangat tinggi pada semua lokasi dan pada semua kedalaman (0 – 80 cm), sementara status K tanah lebih bervariasi, yaitu dari sedang sampai sangat tinggi.Kata kunci: akumulasi hara, ketersediaan hara, petani kecil, residu hara, status hara
Critical Level Determination of Phosphorus for Big Red Chili (Capsicum annuum L.) Growth on Soil in Java Island Arief Hartono; Desi Nadalia; Siti Lathifah Husnul Khuluq
Jurnal Hortikultura Indonesia Vol. 10 No. 3 (2019): Jurnal Hortikultura Indonesia
Publisher : Indonesian Society for Horticulture / Department of Agronomy and Horticulture

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (447.302 KB) | DOI: 10.29244/jhi.10.3.190-199

Abstract

One of the efforts that can be done so that the fertilization of phosphorus (P) accommodate the P needs of big red chili is by conducting soil analysis and determine the critical level of P in the soil related to the yield. The objective of this research was to determine the critical level of P for big red chili in Java Island. Soil samples were collected from 19 locations in Java Island. The soil P before planting of 19 locations was determined by three methods of P extraction namely Bray 1, Olsen, and Mehlich III. After soil P analyses, big red chili was planted in a pot containing 500 g of soil (oven-dry weight) from 19 locations where each location had 4 rates of P fertilization. The rates of P fertilization applied were 0, 55, 110, and 220 kg ha-1 P2O5. Urea and KCl were applied with the rate of 110 kg ha-1 and 180 kg ha-1 respectively as basal fertilizers. Plant biomass was harvested after the age of 4 weeks after planting. The effect of P fertilizer on growth parameters was evaluated using analysis of variance. The critical level of soil P was determined by the Cate and Nelson method. The results showed that P fertilization had a significant effect on plant height, fresh weight and dry weight of plants. Fertilization treatment of 220 kg ha-1 P2O5 resulted in the highest responses to plant growth parameters. The correlation test results showed that Bray 1, Olsen and Mehlich III extraction methods significantly and positively correlated with plant dry weight. The Olsen extraction method showed the highest correlation with plant dry weight (r=0.665). The critical levels of P in the soil for big red chili in Java determined by Bray 1, Olsen, and Mehlich III extraction methods, were 15 ppm, 40 ppm, and 50 ppm, respectively. Keywords: Bray 1, Cate and Nelson, extraction method, Mehlich, Olsen, soil analysis
Co-Authors A Moawad A Rachim Achmad Surya Adi Sustama Afifah Ramadhani Anas D. Susila Anas Dinurohman Susila Atang Sutandi Baba Barus Budi Nugroho Dede Sulaeman Denis Muba Pandapotan Simanihuruk Desi Nadalia Diah Tjahyandari Faridlotul Hasanah Gilang Sukma Putra Gilang Sukma Putra Hafiz Hernandi Heru Bagus Pulunggono I Gusti Bagus Wiksuana Indri Hapsari Fitriyani Irman Firmansyah Kukuh Murtilaksono Kukuh Murtilaksono Kukuh Murtilaksono Laode Muhamad Asdiq Hamsin Ramadhan Leonarda Sofiani Rame Lilik Tri Indriyati, Lilik Tri Masruroh Mimin Aminah Moh. Zulfajrin Muhammad Firdaus Muliana Mutia Oktarina Permai Yenny Natalia Desy Djata Ndua Neng Elin Novianti Novianti Ruliana P.L.G. Vlek Praja Hary Satria Purwono Purwono Putri Tria Santari Putri Tria Santari Setiko, Putro Hairutomo Siti Lathifah Husnul Khuluq Sri Djuniwati Sudadi, Untung Sunarti Sunarti Sunarti Sunarti Supiandi Sabiham Susanto, Bambang Suwarno, Suwarno Syaiful Anwar Syamsul Arifin Widiatmaka . Yakov Kuztakov Yakov Kuzyakov Yumei Kang