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All Journal Jurnal Ilmu Pertanian Indonesia Pastura; Journal Of Tropical Forage Science Jurnal Tanah dan Iklim AGRIC
Suwarno, Suwarno
Departemen Ilmu Tanah Dan Sumbedaya Lahan, Fakultas Pertanian, Institut Pertanian Bogor, Kampus IPB Darmaga Bogor 16680
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Economics, Econometrics & Finance Social Sciences Other

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Respons Pemberian dan Penetapan Status Hara Si pada Tanaman Padi Mirawanty Amin; Budi Nugroho; . Suwarno; Dyah Tjahyandari Suryaningtyas
Jurnal Ilmu Pertanian Indonesia Vol. 24 No. 1 (2019): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (352.674 KB) | DOI: 10.18343/jipi.24.1.32

Abstract

The use of silica fertilizer still has been included in cultivation technology: however, nutrient status for paddy soil is rarely reported in Indonesia. It is necessary to carry out a research on the determination of nutrient status and the influence of silica fertilizer on rice production. The aims of this research are to investigate the effect trass on soil chemical properties, discover of silica fertilizer on rice production and determine the nutrient status of Si by Cate Nelson and Contiunous Curves. The results showed that the effect of trass has a significant on soil chemical properties such as pH H2O and available Si. The nutrient status of Si was estimated by using several different extractants namely H2O; CaCl2; Ammonium Acetate pH 4.8; and Acetate Buffer pH 4 gives a critical limit value of 13, 17, 34, and 37 mg kg-1, equivalent to 28 mg kg-1, 36 mg kg-1, 73 mg kg-1, and 79 mg kg-1 SiO2, respectively. Meanwhile, the Si availability in the medium class based on Continuous Curves Method extracted by H2O; 0.01 M CaCl2; NH4OAc pH 4.8; and Na-acetate pH 4 were 18-34, 33-41, 44-79, and 42-81 mg SiO2 kg-1, espectively. Burned trass with dose of 10 g kg-1 gives the highest rice production of 44.19 g pot-1 equivalent to 7.07 ton ha-1.
Pengaruh Pemberian Pelet dari Lumpur Kolam Ikan dan Kotoran Kambing pada Pertumbuhan dan Produksi Jagung Manis Putri Tria Santari; Arief Hartono; . Suwarno
Jurnal Ilmu Pertanian Indonesia Vol. 24 No. 1 (2019): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (194.895 KB) | DOI: 10.18343/jipi.24.1.41

Abstract

A mixture of fishpond sediment and goat manure can be used to increase the growth and yield of sweet corn. This research aimed to determine the effect of pellet from the combination of fishpond sediment and goat manure with a ratio 1:1 on nutrient (N, P, and K) and yield on sweet corn. The land used was Ultisol Dramaga which was located in Cikabayan Experimental Farm, Bogor Agricultural University. The study was conducted in a greenhouse with a Completely Randomized Design (CRD) of one factor with eleven treatments: without treatment (control); standard fertilization (Urea 0.43 ton ha-1, SP-36 0.41 ton ha-1, and KCl 0.25 ton ha-1); three doses of pellet (20 ton ha-1, 30 ton ha-1, and 40 ton ha-1); three doses of fishpond sediments (10 ton ha-1, 15 ton ha-1, and 20 ton ha-1); three doses of goat manure (10 ton ha-1, 15 ton ha-1, and 20 ton ha-1). The result showed that giving 40 ton ha-1 pellet had a significant effect on the increasing pH, ammonium, and the availability of K in Ultisol and nutrient content of P, K, and the weight of dry-grain sweet corn.
EFEKTIVITAS VERMIKOMPOS EISENIA FOETIDA SAVIGNY DALAM MEMPERBAIKI TINGKAT PRODUKSI DAN KUALITAS NUTRISI Sorghum bicolor (L.) Moench DAN Centrosema pubescens Benth Asep Tata Permana; Luki Abdullah; Panca Dewi Manuhara Karti; Toto Toharmat; Suwarno Suwarno
Pastura : Jurnal Ilmu Tumbuhan Pakan Ternak Vol 5 No 1 (2015): Pastura Vol. 5 No. 1 Tahun 2015
Publisher : Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (430.066 KB) | DOI: 10.24843/Pastura.2015.v05.i01.p08

Abstract

Vermicomspost is an organic product resulted from metabolism process of soil worm like Eisenia foetida Savigny. The experiment was conducted to evaluate the effectivity of vermicompost derived from E. Foetida Savigny in improvement of growth, biomass production and quality of Sorghum bicolor (L.) Moench and Centrosema pubescencs. The results showed that application of vermicompost effectively improved growth, biomass production and N, P, K content of above ground biomass of those experimental plants.Keywords : vermicompost, productivity, quality.
Pengaruh Residu Terak Baja terhadap Sifat Kimia Tanah Gambut dan Hasil Padi Sawah Putro Hairutomo Setiko; Suwarno Suwarno; Arief Hartono
Jurnal Tanah dan Iklim (Indonesian Soil and Climate Journal) Vol 39, No 2 (2015)
Publisher : Balai Besar Penelitian dan Pengembangan Sumberdaya Lahan Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jti.v39n2.2015.127-136

Abstract

PENGARUH PUPUK ORGANIK BERKADAR BESI TINGGI TERHADAP PERTUMBUHAN DAN PRODUKSI PADI SAWAH Triyani Dewi; Iswandi Anas; - Suwarno; Dedi Nursyamsi
Agric Vol. 25 No. 1 (2013)
Publisher : Fakultas Pertanian dan Bisnis, Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/agric.2013.v25.i1.p58-63

Abstract

The application of chemical fertilizers is costly and gradually lead to the environmental problems. Organic residue recycling is becoming an increasingly important aspect of environmentally sound sustainable agriculture. Organic content of these soils are mostly very low, while it is widely know that organic matter is very important to keep physical, chemical, and biological properties of soil as well as soil productivity. The objectives of the study were to know effect of organic fertlizer that high iron content on growth and production paddy rice. Pot experiment was conducted on May to November 2011 in green house. This experiment using a randomized complete block design with two factors; the types of soil (Endoaquert, Tropaquept, and Hapludult) and organic fertilizerenriched with Fe (FeCl3) in various level. Each treatment was replicated three times. The results showed that the organic fertilizer enriched with iron up to 64000 mg.kg-1 didn’t significantly effect on the growth and rice production. Application of organic fertilizer in Tropaquept Sukamandican increase significantly on height plant, number of tiller, dry weight of grain and 1000-grain weight.
Co-Authors Asep Tata Permana Budi Nugroho Dedi Nursyamsi Dyah Tjahyandari Suryaningtyas Hartono, Arif Iswandi Anas Luki Abdullah Mirawanty Amin Panca Dewi Manu Hara Karti Putri Tria Santari Setiko, Putro Hairutomo Toto Toharmat Triyani Dewi