Management of tropical acid upland soil for sustainable food crop production in southern Thailand

Nilnond, Chairatna, Suthipradit, Sumalee, Nualsri, Likit, Edwards, D. G., Myers, R. J. K. and Grundon, N. J. (1999) Management of tropical acid upland soil for sustainable food crop production in southern Thailand. Thai Journal of Agricultural Science, 32 1: 19-30.


Author Nilnond, Chairatna
Suthipradit, Sumalee
Nualsri, Likit
Edwards, D. G.
Myers, R. J. K.
Grundon, N. J.
Title Management of tropical acid upland soil for sustainable food crop production in southern Thailand
Journal name Thai Journal of Agricultural Science   Check publisher's open access policy
ISSN 0049-3589
Publication date 1999-01
Sub-type Article (original research)
Volume 32
Issue 1
Start page 19
End page 30
Total pages 12
Place of publication Bangkok, Thailand
Publisher Agricultural Science Society of Thailand
Collection year 1999
Language eng
Subject C1
300299 Crop and Pasture Production not elsewhere classified
620100 Field Crops
Formatted abstract
A field trial was conducted in southern Thailand to develop and evaluate input technologies which could be employed for an opportunistic food crop production system on a Typic Paleudults under rainfed conditions. The trial compared 10 different input technologies for intercropping a rotation of groundnuts, upland rice, supersweet maize [sweetcorn] and mungbean [Vigna radiata] between young rubber [Hevea] trees for a period of four years prior to canopy closure. Results indicated that the highest yields of all crops were obtained in the high input technology which included application of lime and inorganic fertilizers containing N, P, K and Mg sufficient to meet crop requirements. The low input technology which applied minimal rates of N, P, K, Ca and Mg resulted in a lower yield, but was economically sound. Green manure (slashed Mucuna cochinchinensis, which had received 500 kg/ha rock phosphate once at sowing) did not sustain yields of rice and supersweet maize. Technologies which did not receive any inorganic fertilizer, viz. usual farmers' practices and organic residues, resulted in comparatively low yields of groundnuts and rice and an extremely low yield of maize.
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Agriculture and Food Sciences
 
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Created: Tue, 10 Jun 2008, 14:35:11 EST