Peanut Production Under Organic Based Management

Abstract

Long-term experiments on peanut production in upland cropping system under organic based management were conducted at Department of Agronomy, Faculty of Agriculture, Chiang Mai University in rainy season of the years 2003 and 2004. Tainan 9 and KAC 431 (Kalasin Accession # 431 or KAC 431) peanut cultivars were grown under organic based and inorganic managements. The first year result indicated that there was significant difference between the treatments only of dry pod yield of Tainan 9 cultivar. Tainan 9 under organic based management produced higher yield than that produced under inorganic management. The dry pod yields obtained were 141.3 and 83.9 kg per rai respectively. Whereas KAC 431 cultivars under organic based and inorganic managements produce average fresh pod and dry pod yields of 371.2, 271.7, 111.0 and 107.7 kg per rai respectively. In the second year there was also significant difference only in Tainan 9 cultivar. The inorganic management treatment gave higher average fresh and dry pod yields than those obtained from the organic based management treatment. The yields obtained were 872, 632, 492 and 357 kg per rai respectively. Whereas the KAC 431 cultivars under organic based and inorganic management produced average fresh and dry pod yield of 1188, 1368, 528 and 600 kg per rai respectively. In terms of soil chemical analyses, it was found that some properties were changed. However, it is still too early to make any conclusion on these effects.