Increasing the functional diversity of cover crop polycultures has potential to modify nutrient cycling. Aboveground tissue from rye (Secale cereale), vetch (Vicia villosa subsp. dasycarpa), and ...chicory (Cichorium intybus) was arranged in litterbags, and rates of nutrient supply were measured. A control, monocultures of each species, a biculture of rye:vetch, and a polyculture of rye:vetch:chicory were compared. Increasing functional diversity through reducing the quantity of rye tissue by 30% to include 10% chicory and 20% vetch increased the total amount of nitrogen released by 257%.
Well-planned crop rotations and targeted use of organic amendments are critical to success in organic wheat production. The impact of green manure (GMr) type, GMr termination timing, and “Acti-Sol” ...pelletized dehydrated poultry manure (DPM); 5-2-3 on organic wheat productivity and quality was evaluated from 2014 to 2016 in Truro, NS, and Saint-Mathieu-de-Beloeil, QC. Crops prior to wheat were soybean or GMr of hairy vetch/oat (HVO), common vetch/oat (CVO), and red clover (RC) (NS site), and HVO, red clover/oat (RCO), and oat (QC site). Trials were split-split-plot designs with treatments of precrops, GMr termination (fall vs. spring), and DPM at 0, 40, 80, and 120 kg total N ha-1. Wheat yields ranged from 1500 to 1800 kg ha-1 if unfertilized with DPM and following soybean or oat precrops. All legume GMrs (HVO, CVO, and RC/RCO) and DPM applications increased grain yield (2000–4200 kg ha-1) and protein content (13%–16%), wheat total N uptake 49–60 kg N ha-1 (QC); 87–125 kg N ha-1 (NS) and soil mineral N content mid-season and postharvest, and responses were consistently greatest following HVO. Timing of GMr incorporation largely had no impact. Applying DPM at 80 kg N ha-1 was an effective substitute for a GMr precrop.
Vaisman, I., Entz, M. H., Bamford, K. C. and Cushon, I. 2014. Green manure species respond differently to blade rolling. Can. J. Plant Sci. 94: 1507-1511. Reducing tillage in green manure (GM) ...management has led to interest in using the blade roller in organic agriculture. This study investigated the interaction effect of GM termination method (blade rolling and conventional tillage) and GM species choice chickling vetch (Lathyrus sativus L.), Indian Head lentil (Lens culinaris), and hairy vetch (Vicia villosa Roth) on a subsequent crop of hard red spring wheat (Triticum aestivum L.). Significant effects on weed density and biomass, wheat biomass, and wheat yield indicated that the GM species were affected differently by termination methods. It was also discovered that spring-seeded hairy vetch continues to grow after rolling, while chickling vetch and lentil die.
Low winter rainfall poses a challenge to production of high biomass
from cover crops, which is necessary for the success of conservation
agriculture systems in the Eastern Cape Province of South ...Africa. An
experiment was conducted to evaluate the adaptability of white oats (
Avena sativa ), grazing vetch ( Vicia dasycarpa ), rye grass ( Lolium
multiflorum ), barley ( Hordeum vulgare ), radish ( Raphanus sativa
) and triticale ( Triticale secale ) production under low winter
rainfall conditions in the Eastern Cape. The cover crop species were
relayed into maturing maize ( Zea mays L.) in February, March and
April of 2010, exposing them to varying rainfall conditions. They were
followed with summer maize. Growth rate and final biomass of cover crop
species decreased with delayed planting, except for radish. February
planted cover crops had the lowest residues remaining at maize
planting, resulting in higher weed dry weights at 3 and 6 weeks after
planting (WAP). April planted cover crops improved soil N by a greater
margin compared to earlier plantings, which were comparable within
their category. Grazing vetch and radish resulted in the greatest soil
N improvement. Significantly higher (P<0.05) maize grain yield was
recorded in grazing vetch, while all other species had comparable
yields. It is, thus feasible to produce cover crops under winter
rainfall conditions in the Eastern Cape and grazing vetch and radish
can serve this purpose.
"It's one building we've played well in, since I've been here," coach Roy Sommer said of Hershey. "Even when we didn't have very good teams, we've gone in there and played well." Worcester's ...four-game Calder Cup winning streak was from April 20 to April 25, 2009. The Sharks dropped the first two games of a series with Hartford down there, then won Game 3 on Ryan Vesce's goal in double overtime. Worcester also won the next three games to take the series, 4 games to 2. John McCarthy did not play on Saturday night and remains questionable for the rest of the series. ... Worcester's all-time in Calder Cup overtime games is 2-5. ... The Sharks have scored only six goals in their last six postseason games. ... They are only 2-4 in playoff games in which they had 40 or more shots on goal. ... Worcester has won just one of its six Game 2s. ... There has been no home-ice advantage for the Sharks in their DCU Center playoff games. Worcester is 7-9 all-time at home and has lost each of its last four games at the DCU Center.
MELVILLE, N.Y., March 9 /PRNewswire/ -- In a move that is expected to ultimately reshape the $100+ billion staffing services category, several former industry executives have formed ...VirtualEmploy.com, an e-procurement company that will offer a revolutionary system for deploying and employing the workflow process. VirtualEmploy.com was founded to streamline the delivery of unbiased, supplier-neutral staffing services through a fully automated and secure paperless enterprise system that employs patent pending technology administered entirely over the Internet. From desktop order origination to billing and payment, VirtualEmploy.com's end-to-end, supplier-neutral delivery system is based on the best practices expertise of staffing professionals, and is supported by the most robust collaborative workflow technology engine of its kind. This newly formed venture is first to offer this unique system for procurement and corporate service delivery.
Both Kevin Henderson and Andrew Desjardins took pucks in the face, Henderson in the neutral zone and Desjardins while on the Sharks bench. ... The Sharks were 2 of 3 on the penalty kill. They are 28 ...for 32 (87.5 percent) during the postseason, second best in the league. They can't catch Wilkes-Barre, which was 20 for 20 in its four playoff games. ... Even though they are playing back-to-back nights in Manchester this weekend, the Sharks are not staying over in New Hampshire. ... The Monarchs did not add anyone to their roster as a result of the Kings being eliminated in the Stanley Cup playoffs. ... Attendance was 1,360, smallest official crowd ever to see a Sharks game here, but not as small as the 1,295 that saw Manitoba beat the IceCats, 3-2, on April 9, 2002.
Steven Zalewski had an assist to extend his point streak to four games. That ties a career best. ... Campbell wore No. 42, becoming the first Shark to have that number. ... Rookie defenseman Joe ...LoPrieno played forward for the first time since junior hockey. ... The Sharks are just 12-18-5 all-time versus Providence, but the tide has turned a bit. Worcester has won four of the last five regular-season games and, after losing five in a row here, has won its last three visits to the Dunkin Donuts Center. ... Worcester matched the Bruins' power-play goal, but the Sharks have given up 13 of them in the last nine games. ... Brad Marchand wasn't as aggravating as he had been during the playoffs, although he and Dan DaSilva jawed for a while at the end of the first period.
