Forage radish ( Raphanus sativus L. var. longipinnatus ) is a new winter cover crop in the Mid‐Atlantic region. The objective of this project was to characterize repeatability, amount, and duration weed suppression during after fall‐planted forage quantify subsequent effect on no‐till seeded corn Zea mays L.). crops were grown 10 site‐years coastal plain Maryland followed by seven site‐years. compared rye Secale cereale L.) no treatments. Early typical planting dates along with contrasting...

Little is known about the mechanism of winter annual weed suppression by forage radish ( Raphanus sativus L. variety longipinnatus ) cover crops. Previous studies suggest that allelopathy from decomposing residue and competition due to rapid canopy development contribute other Brassica Four contrasting experimental approaches were used identify Results a field based crop residue‐transfer experiment supported hypothesis fall dominant following A high level early spring was observed where grew...

Abstract The use of killed cover crop mulch for weed suppression, soil erosion prevention and many other benefits has been demonstrated in organic no-till or zero-till farming systems eastern US regions Canada. Implements have developed to make this system possible by terminating crops mechanically with little, if any, disturbance. Ongoing research the northern Great Plains is being conducted identify species termination methods (OZ) that are adapted rotations climate semi-arid region....

The expansion of soybean [ Glycine max (L.) Merr.] production onto the Canadian Prairies has resulted in new environmental constraints that affect phenology, seed yield, and quality. This study examined these factors for 10 cultivars differing maturity group (MG) rating from 000.9 to 1.3 southern Manitoba (MB) eastern Ontario (ON). Detailed climate phenological data collected at both locations were used explore differences measurements among MG between locations. In MB, more time was spent...

Plant breeding programs use easily measured traits to determine plant selection for the next cycle of testing. Often ratings (1–10) are used generalized biomechanical properties such as lodging, act a falling over due environmental conditions. In order create more repeatable means scoring lodging (bending) susceptibility, Stalker was conceived device that could and time efficient outputs independent operator bias by quantifying stalk strength proxy resistance.

Abstract The Canadian Prairies have become the new northern edge for soybean [ Glycine max (L.) Merr.] production in North America. In this short growing season area, it has been speculated that application of nitrogen (N) fertilizer at planting could increase growth, yield, and grain protein. To test hypothesis, field experiments were conducted to determine if starter N rates 0, 17, 34, 50, 67, 84 kg ha −1 applied as broadcast incorporated urea before would an effect on biomass, protein...

The microbial composition of the rhizosphere soil could be an important determinant crop yield, pathogen resistance, and other beneficial attributes in plants. However, little is known about impact cropping sequences on community dynamics, especially economically species like soybean. Using 2-year corn-soybean, canola-soybean, soybean-soybean, we investigated how crops from previous growing season influenced structure microbiome both bulk soybean rhizosphere. A combination marker-based...

The photoperiod plays a critical role in the control of flowering timing soybean (Glycine max (L.) Merr.) with long days increasing time to flowering. Early cultivars have been developed from breeding programs for environments photoperiods; however, this effect is challenging isolate field experiments because other environmental influences. Our experiment examined on node appearance rate and flower 13 early maturing ranging maturity group (MG) between 000.9 1.3. Growth chambers were...

Lodging risk in spring wheat has grown with the introduction of high-yielding cultivars that require high nitrogen (N) inputs to optimize grain yield and protein content. Canopy management (CM) strategies have been used reduce lodging risk. However, short growing season unpredictable moisture supply may limit use these Canadian Prairies. The objective this study was quantify ability agronomic practices modify early crop canopy, hence risk, determine how influence N final yield. Split-plot...

Abstract Insects provide valuable ecosystem services to agriculture, but their populations are often lower in these areas. We established floral strips on the edges of eight organic and seven conventional crop fields southern Manitoba. then compared capture rates ground beetles, syrphid flies bees strips; control (unmodified) field edges; nearby semi‐natural sites; within strip at six distances away from borders (5–150 m). The effects farm management landscape context insect abundance,...

The H3A-4 extraction is a new method to determine plant available nutrients but has not been compared with standard soil tests or calibrated crop response in Manitoba, Canada. Olsen P and ammonium acetate K were related for 961 samples. Significant relations found between ( R 2 = 0.74, < 0.01) 0.83, 0.01). New thresholds established fertilizer recommendations as 24 mg kg –1 32 K.

For one of Canada’s most important regions crop production—the prairies—it’s uncertain if cover crops can be successfully integrated into rotations; so, will soil nitrogen (N) cycling influenced to benefit main crops? To address these gaps, we compared a rotation with (CC) vs. without (LR) from 2018 2021 in Saskatoon, SK. The were grown sequence wheat–canola–potato–pea; the included red clover, berseem clover/oat mix, fall rye, and brassica cover. Yield aboveground biomass collected each...

HomePlant DiseaseVol. 106, No. 3First Report of Pod and Stem Blight Seed Decay Caused by Diaporthe longicolla on Soybean in Western Canada PreviousNext DISEASE NOTE OPENOpen Access licenseFirst CanadaA. Abdelmagid, M. Hafez, Y. Lawley, P. K. Rehal, F. DaayfA. AbdelmagidDepartment Plant Science, University Manitoba, Winnipeg, R3T2N2, CanadaDepartment Pathology, Assiut University, Assiut, 71515, Egypt, HafezAgriculture Agri-Food Canada, Lethbridge Research Centre, Lethbridge, Alberta, T1J 4B1,...

Abstract Strip‐tillage is an emerging conservation tillage/residue management system for corn production in the Northern Great Plains. Producers Manitoba are becoming more interested strip‐tillage as it may provide many of soil benefits no‐tillage without potential limitations cold soils spring common to this region. A 2‐year study evaluated ( Zea mays L.) response phosphorus (P) fertilization and conventional tillage systems. Fertilization treatments included a control (no P), two rates P...

Soybean ( Glycine max (L.) Merr.) production in Manitoba has increased substantially over the last 20 years, raising questions about phosphorus (P) fertilization this region. Between 2013 and 2015, a study was conducted across 28 sites to evaluate effect of P fertilizer rate placement on soybean plant stand seed yield. Treatments were 22.5, 45, 90 kg 2 O 5 ha −1 applied as monoammonium phosphate, seed-placed, side-banded or broadcast, plus an unfertilized control treatment. Plant reduction...

Abstract The natural occurrence of lodging in wheat ( Triticum aestivum L.) small‐plot research aiming to record visual ratings is unpredictable highly dependent on environmental conditions, and does not differentiate between root shoot lodging. Detailed plant characteristics can be used indicate risk; however, such measurements are destructive time‐consuming for projects that focused solely evaluating Stalker, a push force meter, nondestructively rapidly stem strength elasticity, which may...