Effect of fertilizer nitrogen management and phosphorus placement on canola production under varied conditions in Saskatchewan

Lemke, R.; Mooleki, S.P.; Malhi, S. S.; Lafond, G. P.; Brandt, S.A.; Shoenau, J. J.; Wang, H.; Thavarajah, Dil; Hultgreen, G.; May, William E.

doi:10.4141/cjps08025

Cited by 16 publications

(15 citation statements)

References 24 publications

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“…Experimental sites included Indian Head (Black Chernozem soil ( Udic Boroll), Melfort (Dark Gray Luvisol soil Á Mollic Cryoboralf), Swift Current (Brown Chernozem soil Á Aridic Boroll), and Scott (Dark Brown Chernozem soil Á Typic Boroll). For information on soil characteristics for each site see Lemke et al (2009). At each site, 17 treatments were arranged in a randomized complete block design (RCBD) with four replicates.…”

Section: Materials and Methods Field Experimentationmentioning

confidence: 99%

“…This paper focuses on the effect of the above-mentioned treatments on spring wheat. For the effects on flax refer to Malhi et al (2008) and for the effects on canola refer to Lemke et al (2009).…”

Section: Materials and Methods Field Experimentationmentioning

confidence: 99%

“…The objective of this study was to determine the influence of form, placement, timing and rate of N fertilizer and phosphorus (P) placement method on plant density, seed and straw yield, seed protein content, and N uptake in seed and straw of spring wheat (Triticum aestivum L.), flax (Linum usitatissimum L.) and canola (Brassica napus L.) under different soilclimatic conditions in Saskatchewan. Previous papers discussed the effects of these factors on flax (Malhi et al 2008) and canola (Lemke et al 2009). This paper discusses the effects on wheat.…”

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Effect of form, placement and rate of N fertilizer, and placement of P fertilizer on wheat in Saskatchewan

Mooleki¹,

Malhi²,

Lemke³

et al. 2010

Can. J. Plant Sci.

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. 2010. Effect of form, placement and rate of N fertilizer, and placement of P fertilizer on wheat in Saskatchewan. Can. J. Plant Sci. 90: 319Á337. On the Canadian prairies, the one-pass seeding and fertilizing no-till system is very common. However, the close proximity of the fertilizer to the seed can cause damage to the emerging seedlings due to a combination of a salt effect and/or ammonia toxicity. Manufacturers have responded by developing openers that allow placement of seed and fertilizer in separate bands. A 3-yr study was initiated in 2000 to determine the effect of nitrogen (N) form [urea (U) and anhydrous ammonia (AA)], placement [broadcast (Br), side-band (SB) or mid-row band (MRB)], timing (fall or spring) and rate (0 to 90 or 120 kg N ha (1 ), and phosphorus (P) placement (7 to 10 kg P ha(1 ) on plant density, seed and straw yield, seed protein content, and N uptake of spring wheat (Triticum aestivum L.) under no-till at four sites representing different agro-ecological zones in Saskatchewan. Rate of applied N had the most dominant effect on agronomic variables, while form, placement, and timing of application of N had minor effects. Generally, SB and MRB were comparable in terms of seed yield, N uptake and seed protein content. From a practical perspective, SB and MRB could be used with equal success with either U or AA. Side banding P produced responses similar to seed-placed P, except under very dry conditions where side banding was superior. In general, placement of urea in soil in a band was more effective than broadcasting, while fall banding can be less effective than spring banding.Key words: Anhydrous ammonia, N application timing, N form, N and P placement, N uptake, protein content, urea, wheat, yield Mooleki, S. P., Malhi, S. S., Lemke, R. L., Schoenau, J. J., Lafond, G., Brandt, S., Hultgreen, G. E., Wang, H. et May, W. E. 2010. Incidence du type, de la me´thode de placement et du taux d'application des engrais N ainsi que de la me´thode de placement des engrais P sur la culture du ble´en Saskatchewan. Can. J. Plant Sci. 90: 319Á337. Dans les Prairies canadiennes, on recourt couramment a`la technique qui consiste a`semer et a`fertiliser en un seul passage, sans travail du sol. Cependant, la proximite´de l'engrais et de la graine peut causer des dommages aux plantules, conse´cutivement a`la salinisation du sol ou a`la toxicite´de l'ammoniaque, ou les deux. Les fabricants y ont reme´die´en cre´ant des socs permettant de placer les graines et l'engrais dans des bandes distinctes. En 2000, les auteurs ont entrepris une e´tude de trois ans pour ve´rifier l'incidence du type d'engrais azote´(N) (ure´e et ammoniac), de la me´thode de placement [a`la vole´e, en bande late´rale (BL) ou en bande a`mi-rang (BMR)], du moment de la fertilisation (automne ou printemps) et du taux d'application (0 a`90 ou 120 kg de N par hectare), ainsi que de la me´thode de placement du phosphore (P) (7 a`10 kg de P par hectare) sur la densited u peuplement, le rendement en grain et en paille, la teneur en prote´in...

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Section: Materials and Methods Field Experimentationmentioning

confidence: 99%

Section: Materials and Methods Field Experimentationmentioning

confidence: 99%

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confidence: 99%

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Effect of form, placement and rate of N fertilizer, and placement of P fertilizer on wheat in Saskatchewan

Mooleki¹,

Malhi²,

Lemke³

et al. 2010

Can. J. Plant Sci.

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“…This observation may account for the increase in Toc content of seeds from N3-treated plants compared with those from plants treated with low rates of N in the current study. Increased N application rate was also found to be correlated with increased protein accumulation and concentration in canola seeds (Asare and Scarisbrick, 1995;Grant et al, 2002;Lemke et al, 2009). Furthermore, pot experiments used in nutrient studies, especially those involving N treatments, should be given preference compared with field research for evaluating genotypic performance.…”

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Response of seed tocopherols in oilseed rape to nitrogen fertilizer sources and application rates

Hussain

Jiang

Jabeen

et al. 2014

J. Zhejiang Univ. Sci. B

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Tocopherols (Tocs) are vital scavengers of reactive oxygen species (ROS) and important seed oil quality indicators. Nitrogen (N) is one of the most important fertilizers in promoting biomass and grain yield in crop production. However, the effect of different sources and application rates of N on seed Toc contents in oilseed rape is poorly understood. In this study, pot trials were conducted to evaluate the effect of two sources of N fertilizer (urea and ammonium nitrate). Each source was applied to five oilseed rape genotypes (Zheshuang 72, Jiu-Er-1358, Zheshuang 758, Shiralee, and Pakola) at three different application rates (0.41 g/pot (N1), 0.81 g/pot (N2), and 1.20 g/pot (N3)). Results indicated that urea increased α-, γ-, and total Toc (T-Toc) more than did ammonium nitrate. N3 was proven as the most efficient application rate, which yielded high contents of γ-Toc and T-Toc. Highly significant correlations were observed between Toc isomers, T-Toc, and α-/γ-Toc ratio. These results clearly demonstrate that N sources and application rates significantly affect seed Toc contents in oilseed rape.

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“…Banding N fertilizers at planting as side-banding (placing the fertilizer in a narrow band 2.5 to 8.0 cm to the side and/or 2.5 to 8.0 cm below the seed) or midrow-banding (placing the fertilizer between every second seed row 2.5 to 8.0 cm below the seed) is usually recommended for annual crops. Banding N fertilizer provides greater fertilizer N use effi ciency than broadcast-incorporation (Grant and Wu, 2008;Lemke et al, 2009;Malhi et al, 1996;Racz, 1979).…”

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Enhanced Efficiency Urea Sources and Placement Effects on Nitrous Oxide Emissions

et al. 2015

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e e ects of band placement of enhanced e ciency fertilizers (EEF) on nitrous oxide (N 2 O) emissions are uncertain. Placement and EEF on N 2 O emissions from spring wheat (Triticum aestivum L.) at two locations in Manitoba, in 2011 and 2012 were examined. Treatments were a no N control and 80 kg N ha -1 at planting of ve combinations of placement and granular N source: broadcast-incorporated urea (Urea I ) and, subsurface side-banded urea (Urea S ; each row side-banded), midrow-banded urea (Urea M ; placement between every other set of rows), midrow-banded environmentally smart nitrogen (ESN, Agrium, Inc.) (ESN M ), and midrow-banded SuperU (Koch Industries Inc.) (SuperU M ). Planting in 2011 was delayed 40 d compared to 2012. Planting coincided with higher soil temperature and moisture resulting in three-to sevenfold more growing season N 2 O emissions (SN 2 O) in 2011 than 2012. In 2011, SuperU M and ESN M reduced SN 2 O, emission factor (EF) scaled by N-applied EF, and yield-scaled N 2 O emission intensity (EI) by 47, 67, and 55%, respectively, compared with Urea I . In 2011, increasing placement concentration of N in order broadcast-incorporation, side-banding, and midrow-banding tended to decrease SN 2 O, EF, and EI of granular urea, but not statistically signi cant. e SN 2 O and nitrate exposure (NE), were signi cantly correlated over the siteyears, indicating N availability from treatments in part determined emissions. Grain yield and crop N uptake were una ected by sources and placement. ese results suggest for early season wet and warm conditions, EEF N sources can reduce emissions compared with granular urea. Further studies are required to clarify placement e ects on N 2 O emissions.

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Effect of fertilizer nitrogen management and phosphorus placement on canola production under varied conditions in Saskatchewan

Cited by 16 publications

References 24 publications

Effect of form, placement and rate of N fertilizer, and placement of P fertilizer on wheat in Saskatchewan

Effect of form, placement and rate of N fertilizer, and placement of P fertilizer on wheat in Saskatchewan

Response of seed tocopherols in oilseed rape to nitrogen fertilizer sources and application rates

Enhanced Efficiency Urea Sources and Placement Effects on Nitrous Oxide Emissions

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