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Response of Short Duration Castorbean to N, P and K Fertilizer |
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รหัสดีโอไอ | |
Creator | Laksanawadee Panpruik |
Title | Response of Short Duration Castorbean to N, P and K Fertilizer |
Contributor | Prasarn Pomsoungworg, Boonlerd Boonyonk, Pairoj Panpruik |
Publisher | Department of Agriculture |
Publication Year | 2537 |
Journal Title | Thai Agricultural Research Journal |
Journal Vol. | 12 |
Journal No. | 1 |
Page no. | 42-50 |
Keyword | castorbrean, short duration, fertilizer |
URL Website | https://at.doa.go.th/journal |
Website title | Thai Agricultural Research Journal |
ISSN | 0125-8389 |
Abstract | Field experiment were set up during 1990-1992 in sandy loam and red clay soil in farmer's field in Khon Kaen and Lopburi provinces, respecitively. The treatments were arranged in split plot design with 3 replications. Main plot consisted of 3 short duration castorbean varieteies : Ubol90, H22 and Khumpu in 1990, Ubol90, IAC.38-4 and 7811-16 in 1991 and Ubol 90, CH-17 and IAC. 38-4 in 1992. Sub plots consisted of 4 rates of chemical fertilizers: 0-0-0, 5-5-5, 10-1010 and 15-15-15 kg/rai of N-O2O5-K2O. Result showed that fertilizer application highly and significantly increased castorbean seed weight. Apparently, marked yield response was observed at the rate of 10-10-10 to 15-15-15 kg N-P2O5 -K2O/rai. Poor yield was observed in Khumpu variety whereas data from Ubol 90, Ch-17, IAC. 38-4, 7811-16 and H22 showed high seed weight. |