Zeolite application affects vegetative phenology of determinate and indeterminate soybean grown on allophanic soil

Abstract

The objective of this study was to quantify the effects of Zeolite and Allophane on vegetative phenology of determinate and inderminate soybean. One determinate (Enrei, [MG] 1V) and indeterminate cultivar (Harosoy [MG] 11) were planted in pots on April 20th at the Faculty of Agriculture, Ehime University, Matsuyama Japan during 2007. Zeolite levels of 0, 20 and 40 g were used to determine the growth behavior of soybean cultivars grown on KyP and KnP of allophanic soil. Zeolite and allophanic soil application significantly affected vegetative phenological parameters of soybean cultivars. Minimum number of days to emergence, unifoliate first and second and 6th trifoliate leaf formation were taken by 20 and 40 g Zeolite application in both cultivars. KyP and KnP of allophanic soil took minimum days to all vegetative phonological parameters. Enrei cultivar took minimum days to emergence and in all respective vegetative developmental periods than Harosoy. Zeolite treated plots attained more plant height than control plots. Both KyP and KnP of allophanic soil gave maximum plant height as compared to paddy soil. Harosoy produced the tallest plants than Enrei. Present findings support the results of experiments by demonstrating that Zeolite application at planting time encourages the initiation of vegetative phenology of soybean cultivars grown on KyP and KnP of allophanic Soil. © 2008 Academic Journals Inc.