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Title: | Penentuan Kebutuhan Pupuk Kalium untuk Budidaya Tomat Menggunakan Irigasi Tetes dan Mulsa Polyethylene |
Other Titles: | Jurnal Agronomi Indomesia Vol.37 No.2 |
Authors: | Amisnaipa Susila, Anas D. Situmorang, Rykson Purnomo, D. Wasgito |
Issue Date: | 2009 |
Publisher: | IPB (Bogor Agricultural University) |
Series/Report no.: | Vol.37 No.2 |
Abstract: | Tomato var. Ratna was grown with polyethylene mulched and drip irrigation on Inceptisol Dramaga with very low soil K and organic matter during two seasons to K critical concentration, and potassium fertilizer requirement. Experiment used single location approach with three steps of activity. The first experiment was established in 2004 to develope artificial soil K status by adding K: 0X (0), 1/4X (193.098), 1/2X (386.195), 3/4X (579.293) and X (772.39 kg K2O ha-1), where X was amount of K equal to 772.39 kg K2O ha-1 or 1287.32 kg KCl ha-1. The second experiment was calibration K study, the experiment arranged in split plot design, with main plot was K status (form first experiment) and sub-plot was K aplication (0, 40, 80, 160, and 320 kg K2O ha-1) in 4 replicated. Third experiment was optimation of K rate. The result showed that interval of soil K availability extracted by Morgan Vanema was divided 5 classes, they were very low (< 58.25 ppm K), low (58.25-103.25 ppm K), medium (103.25-205.00 ppm K), high (=205 ppm K) and very high (>205.00 ppm K). Potassium recommendation for tomato on Inceptisol with drip irrigation and polyethylene mulch which has very low, low, medium, high and very high K content was 180.20, 131.30 and 82.25 kg K2O ha-1or equal to 300.33, 218.83, and 137.08 KCl ha-1 respectively. |
URI: | http://repository.ipb.ac.id/handle/123456789/35823 |
Appears in Collections: | Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) |
Files in This Item:
File | Description | Size | Format | |
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Amisnaipa.pdf | e-jurnal_full Text | 109.19 kB | Adobe PDF | ![]() View/Open |
Amisnaipa_abstract.pdf | e-jurnal_abstract | 23.11 kB | Adobe PDF | ![]() View/Open |
Amisnaipa_abstract.ps | PostScript | 111.02 kB | Postscript | View/Open |
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