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Pencucian dan Pemupukan Tanah Sulfat Masam untuk Perbaikan Sifat Kimia dan Pertumbuhan Padi Jelly Amalia Santri; Azwar Maas; Sri Nuryani Hidayah Utami; Wahida Annisa
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) Vol 45, No 2 (2021)
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v45n2.2021.95-108

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh pencucian dan ameliorasi terhadap sifat kimia tanah dan air dalam menunjang pertumbuhan tanaman padi di lahan sulfat masam bukaan baru. Penelitian ini meliputi pembuatan kompos berbahan dasar tanaman lokal di kebun percobaan Belandean yang dilanjutkan dengan percobaan pot di rumah kaca Balittra Banjarbaru, Kalimantan Selatan pada bulan Februari sampai Mei 2019. Rancangan yang digunakan dalam penelitian ini adalah rancangan acak lengkap (RAL) faktorial 2 faktor dan diulang sebanyak 3 ulangan. Faktor pertama adalah pemupukan (P), yaitu: (a) P0 = tanpa dipupuk,  (b) P1 = pemupukan NPK 50% dosis rekomendasi, (c) P2 = pemberian NPK 50% dosis rekomendasi + Kompos, (d) P3 = pemberian NPK 100% dosis rekomendasi + NPK anorganik sesuai kandungan kompos, dan (P4) = pemberian NPK 100% dosis rekomendasi. Faktor kedua adalah pencucian (D) dengan sistem, yaitu: (a) D0 = air hasil pencucian tidak dikembalikan, (b) D1 = air hasil pencucian dikembalikan. Hasil penelitian menunjukkan bahwa pencucian dengan air hasil pencucian tidak dikembalikan membuat  nilai Eh, DHL serta kandungan Fe dan SO4 tanah lebih rendah jika dibandingkan dengan perlakuan lainnya. Namun, nilai Al-dd dan H-dd tanah terendah terdapat pada perlakuan pengembalian air hasil pencucian dan pemupukan NPK 50% dosis rekomendasi dengan penambahan kompos bahan organik insitu. Perlakuan ini juga memiliki nilai produksi biomassa tertinggi jika dibandingkan dengan perlakuan lainnya.
Pengaruh Dosis Pupuk Urea terhadap Kandungan N Tanah, Serapan N dan Hasil Umbi Bawang Merah pada Tanah Steril dan Tanah Inokulasi Ratih Kurniasih; Arif Wibowo; Sri Nuryani Hidayah Utami
Jurnal Pertanian Presisi (Journal of Precision Agriculture) Vol 1, No 1 (2017): Jurnal Pertanian Presisi Volume 1, Nomor 1, 2017
Publisher : Universitas Gunadarma

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Abstract

Fusarium wilt of shallot is caused by Fusarium solani could affect yield on shallot planting. This research was conducted to study the effect of  addition urea fertilizer on total nitrogen of soil, ammonium, nitrate, nitrogen uptake of foliage and bulbs, and bulbs yield of shallot. This research was conducted at KP4 Kalitirto Berbah and Faculty of  Agriculture, Gadjah Mada University with Randomized Complete Block Design (RCBD) with 2 factors and 4 replications. The first factor was two type of soil which were inoculated soil by Fusarium solani inoculums and sterilized soil by heating  treatment at more than 100 °C at least 3 hours. The second factor was five different dose of urea and KCl fertilizer on percentage (0, 50, 100, 150 and 200) from fertilizer recommendation. The result showed that total nitrogen of soil, ammonium, nitrate in inoculated soil lower  compared to sterilized soil. There is a positive and significant correlation between ammonium and total nitrogen of soil to fresh weight of bulb, the number of bulb and nitrogen uptake of foliage. Likewise, the fresh weight of bulbs and the number of bulb has a positive and highly significant correlation with nitrogen uptake of foliage and nitrogen uptake of bulb.
Pemanfaatan Biochar dan Irigasi Terhadap Ketersediaan Fosfor untuk Meningkatkan Produktivitas Kedelai Anjasmoro Angga Prasetya; Sri Nuryani Hidayah Utami; Fathi Alfinur Rizqi; Yulita Windi Nuraini; Melly Pradani
Jurnal Ilmu Pertanian Indonesia Vol. 0 No. 00 (2024): inpress
Publisher : Institut Pertanian Bogor

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Abstract

National soybean production from 2014 to 2017 generally decreased as a result of the shrinking area of ​​cultivation. The purpose of this study was to increase soybean productivity by adding biochar and adjusting the volume of water added. This study used a completely randomized design with two factors; The first factor is the dose of biochar (0 tons/ha, 10 tons/ha, 15 tons/ha and 20 tons/ha), while the second factor is the volume of water (50% (600 ml), 100% (1200 ml) and 125% ( 1800 ml)). Physical parameters observed were moisture content and texture, while chemical parameters observed were pH, C-Organic, Cation Exchange Capacity (KPK), basic cations (Ca, Mg, K, Na), N-total, P-total and P -available. Data were analyzed using analysis of variance (ANOVA) followed by Duncan's multiple range test (DMRT) to compare between treatments. The results showed that the application of biochar at a dose of 20 tonnes/ha and 100% water volume significantly improved soil chemical properties. pH, KPK, available-Ca, available-Mg, available-K, available-Na-total P, available-P, total-N significantly affected the effect of adding biochar and the right volume of water. The more application of biochar will improve the chemical properties of the soil, while the provision of water as needed will increase the availability of nutrients for plants. Key words: Soybean, Biochar, Fosfor, Water
Development of Demonstration Plots and Assistance of Farmer Group Yellow Soybean Based on Local Wisdom Supporting Food Security in Cilacap District, Central Java, Indonesia Sri Nuryani Hidayah Utami; Tri Harjaka; Dody Kastono; Jaka Widada; Arif Muliawan; Mulyono Mulyono; Ahmad Romdhon; Angga Prasetya; Maria Gratias; Adi Laksono
Engagement: Jurnal Pengabdian Kepada Masyarakat Vol 6 No 1 (2022): May 2022
Publisher : Asosiasi Dosen Pengembang Masyarajat (ADPEMAS) Forum Komunikasi Dosen Peneliti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29062/engagement.v6i1.1084

Abstract

The mentoring and demonstration plot program with the application of technology carried out by the Faculty of Agriculture Universitas Gadjah Mada Team was proven to be able to increase the productivity and quality of soybeans, although some were only applied partially (not completely) from the recommended technology package, this was constrained by many factors in each mentoring area. In the Cilacap area, the demonstration plot results showed a fairly high potential reaching 2.24 tons/ha in Bantarsari, 2.94 and 3.77 tons/ha in Kawunganten, while in Majenang before harvesting soybeans showed good potential with 130-140 pods. per plant, this is of course the potential yield can reach above 3.0 tons/ha, but unfortunately it was affected by the flood due to the broken embankment, so the soybeans were inundated and damaged (rotten) in a relatively short time. The process of technology transfer and adoption that occurred went well, and many farmers gave testimony that this mentoring program was good to be developed and continued, so that under conditions according to the growing season, they would be able to show even better potential.