Sulphur fertilizer and tillage management of canola and wheat in western Canada

2004 ◽  
Vol 84 (2) ◽  
pp. 453-462 ◽  
Author(s):  
C. A. Grant ◽  
A. M. Johnston ◽  
G. W. Clayton
Keyword(s):  
Wheat Yield ◽  
Residual Effects ◽  
Reduced Tillage ◽  
Western Canada ◽  
Zero Tillage ◽  
Small Particle Size ◽  
Brassica Napus L ◽  
Broadcast Application ◽  
Sulphur Fertilizer ◽  
Conventional Ct

A 3-yr field study in Manitoba, Saskatchewan and Alberta evaluated immediate and residual effects of source, timing and placement of sulphur fertilizers on canola (Brassica napus L.) and wheat (Triticum aestivumL.) under conventional (CT) and reduced tillage (RT). Sulphur fertilization did not increase wheat yield, even when soil sulphate was low. Ammonium sulphate (AS) and ammonium thiosulphate (ATS) increased canola yield in 2 of 3 yr at the Saskatchewan site while elemental S and Tiger 90™ did not. Residual S from AS and ATS increased canola yield on S-deficient soils in the second and third crops after application. Canola yield on the S-deficient soil was lower where broadcast Tiger 90 rather than AS or ATS was applied the previous year, indicating that broadcast Tiger 90 oxidation was insufficient to support canola yield in the second crop year after application. Banding or seed-placing Tiger 90 delayed oxidation further. In the third crop after application, canola yield was similar with broadcast Tiger 90, AS or ATS but was lower with seed-placed or banded Tiger 90 than AS or broadcast Tiger 90. Small particle size and broadcast application of elemental S are needed to hasten oxidation of S to sulphate-S. Key words: Elemental S, Bentonite S, zero tillage, reduced tillage

Sulphur fertilizer and tillage effects on early season sulphur availability and N:S ratio in canola in western Canada

2003 ◽  
Vol 83 (4) ◽  
pp. 451-463 ◽  
Author(s):  
C. A. Grant ◽  
A. M. Johnston ◽  
G. W. Clayton
Keyword(s):  
Field Studies ◽  
Conventional Tillage ◽  
Residual Effects ◽  
Western Canada ◽  
Brassica Napus L ◽  
Sulphur Concentration ◽  
Sulphur Fertilizer ◽  
Tillage System ◽  
N:S Ratio ◽  
S Fertilizers

Field studies in Manitoba, Saskatchewan and Alberta over 3 yr evaluated immediate and residual effects of source, timing and placement of S fertilizers on sulphate-S supply to canola (Brassica napus L.). The treatments were compared under conventional tillage (CT) and in the establishment years of a reduced (RT) system. Sulphate-S in the soil was measured for two weeks after seeding, using PRSTM-probes. Sulphur concentration and N:S ratio were measured in canola tissue at flowering. Tillage system had little effect on available sulphate, tissue S concentration, N:S ratio or response to S fertilization. Ammonium sulphate (AS) generally increased tissue S concentration and reduced N:S ratio with all placements, and the effects of surface-applied ammonium thiosulphate (ATS) were similar to the effects of AS. Tiger 90, a bentonite-elemental S formulation, generally produced lower S concentrations in canola tissue at flowering than did AS, and levels were similar with elemental S and Tiger 90. Both tissue S concentration and N:S ratio were good indicators of S sufficiency for canola. Sulphate carryover from AS increased tissue S concentration and decreased N:S ratio in the year following application. In contrast, increases in tissue S concentration and decreases in N:S ratio were lower with Tiger 90 than AS. The oxidation of the residual elemental S in Tiger 90 could not be relied upon to increase tissue S concentration above deficiency levels in the year following application where soil sulphate levels were low. Key words: Elemental S, bentonite S, zero tillage, N:S ratio, PRS-probes

The influence of management on soil loss and yield of wheat in Chernozemic and Luvisolic soils

1995 ◽  
Vol 75 (4) ◽  
pp. 567-574 ◽  
Author(s):  
C. M. Monreal ◽  
R. P. Zentner ◽  
J. A. Robertson
Keyword(s):  
Soil Loss ◽  
Management Practices ◽  
Wheat Yield ◽  
Crop Productivity ◽  
Conventional Tillage ◽  
Crop Rotations ◽  
Western Canada ◽  
Zero Tillage ◽  
Soil Losses

The effects of management practices on erosion and crop productivity for different agro-ecosystems in Canada are largely unknown. A study was conducted to examine the effects of management on soil loss and wheat yield in long-term research plots, established in western Canada. Soil erosion was measured using the 137Cs technique. Under conventional tillage, topsoil was lost at a rate of 2–37 t ha−1 yr−1. Equivalent loss in topsoil thickness ranged between 0.02 and 0.28 cm yr−1. Soil losses were highest in 2–yr wheat–fallow crop rotations. Continuous wheat, 5–yr cereal–hay rotations, and plots amended with manure reduced soil losses and maintained thicker topsoils. At Ellerslie, Alberta, there was no measurable soil loss from a Black Chernozemic cropped to continuous barley under zero tillage. Decrease in annual wheat yield averaged 106 kg ha−1 cm−1 topsoil loss in the Brown Chernozemic and 117 kg ha−1 cm−1 topsoil loss in the Gray Luvisol. Key words: Management, erosion, topsoil, manure, yield

Effect of row spacing and seed/fertilizer placement on agronomic performance of wheat and canola in zero tillage systems

1998 ◽  
Vol 78 (3) ◽  
pp. 389-394 ◽  
Author(s):  
H. S. Xie ◽  
D. R. S. Rourke ◽  
A. P. Hargrave
Keyword(s):  
Field Experiments ◽  
Wheat Yield ◽  
Triticum Aestivum L ◽  
Yield Component ◽  
Row Spacing ◽  
Agronomic Performance ◽  
Zero Tillage ◽  
Fertilizer Placement ◽  
Brassica Napus L ◽  
Narrow Row

Field experiments were carried out in Manitoba to investigate the agronomic response of zero till-grown spring wheat (Triticum aestivum L.) and canola (Brassica napus L.) to different row spacing and seed/fertilizer placement treatments. Wheat yield was very poor at 51-cm row spacing in comparison with those at 25- and 38-cm row spacings. Wheat performance between the row spacings of 25- and 38-cm was generally similar, especially coupled with paired-row seed/fertilizer placement; and canola performance tended to be better at 38-cm row spacing relative to 25-cm row spacing. Among three types of seed/fertilizer placement examined, paired-row placement resulted in the best performance in both wheat and canola, whereas crop response to narrow-row and wide-row seed/fertilizer placement varied with year. Therefore, with intensive crop management in zero tillage (ZT) system under the Manitoba conditions, the best crop performance in wheat and canola could be achieved with paired-row seed/fertilizer placement coupled with 25- to 38-cm row spacings. Key words: Yield, yield component, row spacing, seed/fertilizer placement, zero tillage

Mercury high erucic low glucosinolate summer rape

1995 ◽  
Vol 75 (1) ◽  
pp. 205-206 ◽  
Author(s):  
R. Scarth ◽  
P. B. E. McVetty ◽  
S. R. Rimmer
Keyword(s):  
Erucic Acid ◽  
Seed Oil ◽  
Industrial Applications ◽  
Western Canada ◽  
Good Source ◽  
Brassica Napus L ◽  
High Erucic Acid ◽  
Rapeseed Cultivar ◽  
Cultivar Description ◽  
Canola Quality

Mercury summer rape (Brassica napus L.) is a high-erucic acid rapeseed cultivar with canola-quality meal. The oil provides a good source of erucic acid for industrial applications and the canola-quality meal can be used in the feed industry. Mercury has an average 10% yield advantage over Hero rapeseed with seed oil and protein contents comparable with Hero rapeseed. Mercury is adapted to the southern B. napus growing regions of western Canada. Key words: Rape (summer), high erucic acid-low glucosinolate, cultivar description

scholarly journals Changes in Soil Properties and Productivity under Different Tillage Practices and Wheat Genotypes: A Short-Term Study in Iran

2018 ◽  
Vol 10 (9) ◽  
pp. 3273 ◽  
Author(s):  
Shokoofeh Khorami ◽  
Seyed Kazemeini ◽  
Sadegh Afzalinia ◽  
Mahesh Gathala
Keyword(s):  
Soil Properties ◽  
Block Design ◽  
Water Productivity ◽  
C:N Ratio ◽  
Wheat Yield ◽  
Water Infiltration ◽  
Reduced Tillage ◽  
Short Term ◽  
Wheat Genotypes ◽  
Tillage Practices

Natural resources are the most limiting factors for sustainable agriculture in Iran. Traditional practices are intensive tillage that leads to a negative impact on crop productivity and soil properties. Conservation agriculture including tillage reductions, better agronomy, and improved varieties, showed encouraging results. The goal of this study was to test combined effect of tillage practices and wheat (Triticum aestivum L.) genotypes on soil properties as well as crop and water productivity. The experiment was conducted at Zarghan, Fars, Iran during 2014–2016. Experimental treatments were three-tillage practices—conventional tillage (CT), reduced tillage (RT), and no tillage (NT)—and four wheat genotypes were randomized in the main and subplots, respectively using split-plot randomized complete block design with three replications. Results showed NT had higher soil bulk density at surface soil, thereby lower cumulative water infiltration. The lowest soil organic carbon and total nitrogen were obtained under CT that led to the highest C:N ratio. Reduced tillage produced higher wheat yield and maize (Zea mays L.) biomass. Maximum irrigation water was applied under CT, which leads lower water productivity. The findings are based on short-term results, but it is important to evaluate medium- and long-term effects on soil properties, crop yields and water use in future.

scholarly journals Implications of Adoption of Zero Tillage (ZT) on Productive Efficiency and Production Risk of Wheat Production

2020 ◽  
Vol 12 (9) ◽  
pp. 3640
Author(s):  
Tamer El-Shater ◽  
Amin Mugera ◽  
Yigezu Yigezu
Keyword(s):  
Production Systems ◽  
Wheat Yield ◽  
Chemical Properties ◽  
Conservation Agriculture ◽  
Productive Efficiency ◽  
Future Research ◽  
Zero Tillage ◽  
Stochastic Production Frontier ◽  
Production Risk ◽  
Information Gap

The impacts of zero tillage (ZT) on soil physical, biological, and chemical properties have been fairly documented in the literature. However, there is still an information gap in the developing world in general and in integrated crop–livestock production systems in dry areas of the world in particular. Using a sample of 621 farmers in Syria, this study assessed the implications of adoption of ZT technology on productive efficiency, input-specific resource use efficiency, and production risk. A stochastic production frontier model, which explicitly and simultaneously accounts for technical inefficiency and production risk, was used to estimate total factor and input-specific technical efficiencies and the risk of obtaining lower levels of yields for each of the sampled farms. Model results show that adoption of ZT proved to be an effective risk management strategy in this dryland production system, where it led to 95% and 33.3% reductions in the risk of obtaining wheat yield levels below 1000 kg/ha and 1500 kg/ha, respectively. Overall, the results have a clear indication that using ZT leads to improvements in productive efficiency as the adoption of ZT led to 93% reduction in the risk of obtaining efficiency levels below 40%. Future research will be needed to shed light on whether coupling ZT with the other components of conservation agriculture will reverse some of these effects.

scholarly journals Performance of Lentil as Affected by Reduced Tillage and Mechanical Seeding

2020 ◽  
Vol 18 (1) ◽  
pp. 51-60
Author(s):  
RU Zaman ◽  
MR Islam
Keyword(s):  
High Speed ◽  
Block Design ◽  
Reduced Tillage ◽  
Zero Tillage ◽  
Traditional Farming ◽  
Tillage Systems ◽  
Root Volume ◽  
Randomized Complete Block Design ◽  
Strip Tillage ◽  
Two Wheeler

Generally, lentil seeds are sown following the traditional farming practice with 3-4 numbers of ploughing combined with broadcasting method in lentil growing countries. This is time consuming and costly. The objective of this study was to evaluate the lentil performance as affected by different mechanical seeding system as well as seeding device. There were seven different treatments of which two tillage systems like i) broadcasting after4 times tillage (CT) and ii) broadcasting after tillage with two wheeler driven High Speed Rotary Tiller (HSRT), and five direct mechanical seeding systems like TT+BP =one tillage + bed planting seeding (BP+Pl), TBP =Direct bed planting seeding (BP), TPTOS =Two wheeler operated Seeder (PTOS), TST = Strip tillage seeding (ST) and TZ =Zero tillage seeding (Z). The experiment was carried out by a randomized complete block design (RCBD) with three replications. From the results it was revealed that yield was increased from0.56 % to 10.42% in mechanical seeding system than CT. The findings also demonstrated that BP increased yield of about 10.42% with 49.31% of lower fuel consumption which saved 48.1% time compared to CT. The HSRT gave numerically higher yield compare to ST than CT but lower than BP, BP+Pl and PTOS. Zero tillage seeding system gave the minimum seed yield compare to others which was 9.67% and 19% lower than that of CT and BP, respectively. In mechanical seeding systems, bed planting exhibited higher root volume and density compare to that of others, but lower to CT and HSRT. SAARC J. Agri., 18(1): 51-60 (2020)

Red River 1861 Roundup Ready™ high erucic acid, low glucosinolate summer rape

2012 ◽  
Vol 92 (7) ◽  
pp. 1407-1409
Author(s):  
P. B. E. McVetty ◽  
R. W. Duncan ◽  
W. G. D. Fernando ◽  
G. Li ◽  
C. D. Zelmer
Keyword(s):  
Erucic Acid ◽  
Seed Oil ◽  
Field Trials ◽  
Red River ◽  
Erucic Acid Content ◽  
Western Canada ◽  
Brassica Napus L ◽  
Roundup Ready ◽  
High Erucic Acid ◽  
Meal Protein

McVetty, P. B. E., Duncan, R. W., Fernando, W. G. D., Li, G. and Zelmer, C. D. 2012. Red River 1861 Roundup Ready™ high erucic acid, low glucosinolate summer rape. Can. J. Plant Sci. 92: 1407–1409. Red River 1861 summer rape (Brassica napus L.) is the world's fourth Roundup Ready™ high erucic acid, low glucosinolate cultivar. On average, Red River 1861 yielded 19% more seed, 7 g kg−1 more seed oil and 7 g kg −1 more meal protein than MillenniUM 03 high erucic acid, low glucosinolate summer rape. Red River 1861 has an erucic acid content of 52.6% in isolated field trials of HEAR lines and is adapted to the southern B. napus growing regions of western Canada.

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