Influence of Between and Within-Row Spacing on Agronomic Characteristics of Irrigated Soybeans1
- B. Basnet,
- E. L. Mader and
- C. D. Nickell2
Several workers have reported on the effect of varying between and within-row spacing on soybean (Glycine max (L.) Merr.) yield but few have used irrigated soybeans. We studied two row-widths, and two in-row spacings in a split-split plot arrangement in 1969 and 1970 using five soybean cultivars on irrigated plots.
Plants in '46-cm row width or 3.8-cm within-row spacing were taller, lodged more, and produced fewer nodes, branches, pods on branches, pods on main stem, and total seeds on a per plant basis. Height to the first pod increased as row-width or in-row spacing decreased. Spacings between or in rows affected neither seed weight nor quality.
Highest yields resulted at the lower plant density in narrow rows in 1969, and at the higher plant density in wider rows in 1970. Row-width ✕ within-row spacing and row-width ✕ cultivar interactions were significant for some of the characteristics measured.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
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