Rhizobium inoculant and seed-applied fungicide effects on field pea production

Abstract

Field pea has been shown to benefit from the use of rhizobium inoculation and seed-applied fungicides under intensive production. The objective of this research was to determine the effect of seed- or soil-applied rhizobium (Rhizobium leguminosarum bv. viciae) inoculants and seed-applied fungicides on field pea (Pisum sativum “Carneval”) production on fields with no previous history of the crop. The study was conducted at seven locations in Saskatchewan in each of 2 yr. Fungicide treatments were Apron FL (metalaxyl), Apron FL + Thiram 75WP (dithiocarbamate) and an untreated check in 1997 and a fourth treatment, Thiram 75WP, was added in 1998. Rhizobium treatments were seed-applied liquid inoculant, soil-applied granular inoculant and a non-inoculated check. Inoculation with rhizobium increased nodulation (5 of 10 sites), seed yield (6 of 13 sites), and protein content (3 of 8 sites), but occasionally appeared to reduce emergence (3 of 14 sites). Granular inoculant had more beneficial effects than the liquid inoculant. Fungicide treatments had few positive effects on production, and occasionally negative effects such as reduced emergence. Interaction effects were rare between seed-applied fungicide and seed-applied liquid or soil-applied granular rhizobium inoculants, which indicated compatibility of these products. Variability in the effects of inoculant types and fungicides suggests that responses are dependent on local soil and environmental conditions. Key words: Apron (metalaxyl), Thiram (dithiocarbamate), Pisum sativum, zero tillage

Intercropping of oat and field pea in Alaska: An alternative approach to quality forage production and weed control

“…Grain yield and quality of oatÁpea intercrops have not been previously reported for Alaska. Grain yields were similar to those already published for Alberta and other temperate regions of North America (Cutforth et al, 2002;Kutcher et al, 2002;Clayton et al, 2003), and grain yields of sole cropped oat were within the ranges reported for the subarctic growing conditions of Alaska (Knight, 1994). Like crop dry matter yields, the intercropped oat and pea produced grain yields (average over combinations, 6.04 t ha (1 ), that were statistically different from sole cropped pea (average over cultivars, 3.16 t ha (1 ) but not from the sole cropped oat (average over cultivars, 5.82 t ha (1 ), and were at least numerically higher than both.…”

Inoculant formulation and fertilizer nitrogen effects on field pea: Crop yield and seed quality

“…Soil-applied inoculant resulted in a 12% increase in seed protein concentration compared to the seed-applied inoculant. Kutcher et al (2002) indicated that there was generally a beneficial effect of inoculation on protein concentration and that granular inoculant resulted in a greater increase than liquid inoculant. There was no significant difference in protein concentration between peat inoculant and liquid inoculant.…”

Potential of Management Practices and Amendments for Preventing Nutrient Deficiencies in Field Crops under Organic Cropping Systems

“…Rhizobium inoculation has shown beneficial effects on nodulation, grain yield, and protein content of peas (McKenzie et al, 2001;Kutcher et al, 2002). Rhizobium inoculation has shown beneficial effects on nodulation, grain yield, and protein content of peas (McKenzie et al, 2001;Kutcher et al, 2002).…”