186-1 Maturity Group 0 Soybean Response to Specialty Inputs, Population, and Row Spacing.



Tuesday, October 18, 2011
Henry Gonzalez Convention Center, Hall C, Street Level

Gregory Endres, NDSU Carrington Research Extension Center, Carrington, ND and Herman Kandel, Plant Sciences, North Dakota State University, Fargo, ND
Numerous special products are being marketed by agricultural industry to potentially increase seed yield of soybean [Glycine max (L.) Merr.]. Field studies have been conducted by the North Dakota State University to examine soybean response to special inputs including nutrient mixtures, a fungicide, and plant growth promoters. Two cultivars, two row spacings (35.6 and 71.1 cm), and two seeding rates (371 and 494 thousand seeds ha-1) were used. Experimental design was a randomized complete block with four replications. Studies were conducted at Carrington and Prosper, ND, in 2010. At Carrington, the higher planting rate resulted in a seed yield advantage of 95 kg ha-1.  Yield for foliar inputs at Carrington was 222 kg ha-1 greater than the untreated check.  Averaged across the two sites (at current prices) the net income for the narrow spacing (yield 4252 kg ha-1) was $35.57 ha-1 greater compared with the wider row spacing (yield 4172 kg ha-1). The net income for the higher seeding rate was $ 21 ha-1 greater compared with the lower seeding rate. Use of the special foliar inputs resulted in a net loss of $38.04 ha-1 compared with the untreated check.
See more from this Division: ASA Section: Agronomic Production Systems
See more from this Session: Applied Soybean Research Community: II