Comparing Fertilizer Phosphorus Requirements of Canola, Lupin, and Wheat

Brennan, R. F.; Bolland, M. D. A.

doi:10.1081/pln-100107601

Cited by 25 publications

(24 citation statements)

References 18 publications

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“…Oilseed rape requirements for P are reported to be as high as for the small grains wheat and barley in western Canada (Ukrainetz et al, 1975). More recently, canola (B. napus) edible oil seed response to P has been compared to spring wheat (Nuttall and Button, 1990;Brennan and Bolland, 2001;Brennan and Bolland, 2005;Bolland, 1997).…”

Section: Introductionmentioning

confidence: 99%

Biofumigant Biomass, Nutrient Content, and Glucosinolate Response to Phosphorus

Brown¹,

Gibson²,

Geary³

et al. 2008

Journal of Plant Nutrition

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Information on biofumigant-green manure vegetative biomass, nutrient, and glucosinolate content sensitivity to phosphorus (P) is lacking for species used in potato and sugarbeet production. Therefore, available P effects on field-grown condiment yellow mustard (Sinapis alba, cv. IdaGold) and oilseed radish (Raphanus sativa, cv. Colonel) were evaluated (2001-03). Low soil P was generally more limiting to radish foliage P concentrations or uptake than to the mustard, suggesting inherent differences in their ability to access and accumulate P. While radish P and S concentrations increased with higher P, concentrations in mustard were either unaffected or reduced. Foliage P concentrations were more closely related to biomass of radish (r 2 = 0.46) than mustard (r 2 = 0.11). Mustard exceeded radish in biomass and S accumulation. Phosphorus effects on glucosinolates producing ionic or isothiocyanates were relatively insignificant. These biofumigants differ appreciably in their ability to access and accumulate P, but P effects on nutrient content or glucosinolates were minor. 743 744 B. D. Brown et al.

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Section: Introductionmentioning

confidence: 99%

Biofumigant Biomass, Nutrient Content, and Glucosinolate Response to Phosphorus

Brown¹,

Gibson²,

Geary³

et al. 2008

Journal of Plant Nutrition

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“…Lafond and Gan (9) reported that though seed placed P did not affect winter wheat stand, grain yield was increased. In spring canola, Brennan and Bolland (2) reported that yield increased as P rate increased. The objective of this experiment was to quantify the effect of N and P on winter canola survival and crop yield in the Great Plains.…”

Section: Introductionmentioning

confidence: 99%

Winter Canola Survival and Yield Response to Nitrogen and Fall Phosphorus

Conley

Bordovsky²,

Rife

et al. 2004

Crop. manag.

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The introduction of winter canola into the Great Plains will increase crop diversity and may increase profitability of existing cropping systems. In many parts of the region a major limitation of winter canola is winter survival. The objective of this research was to quantify the effect of nitrogen and phosphorus on winter canola survival and crop yield. Two locations in Missouri and one location in Texas were seeded to ‘Wichita’ winter canola in the 2001‐2002 and 2002‐2003 growing seasons. Fall N followed by spring N and fall P fertility treatments were applied in a randomized complete block factorial design. In Missouri, percent winter survival, bloom date, crop height, percent lodging, harvest maturity date, and grain yield response to N and P treatments varied among locations and years. Percent winter survival was greatest at Columbia, at 86 and 80% in 2002 and 2003, respectively. In contrast, grain yield was greatest at Novelty at 2100 and 2400 lb/acre in 2002 and 2003, respectively. In Texas, winter survival was greater than 85% in both years. Grain yield was 2900 and 990 lb/acre in 2002 and 2003, respectively. Shattering due to delayed harvest primarily caused decreased grain yield in 2003. Grain yield was greater at 50 lbs of fall N than when no fall N was applied. Fall P and spring N treatments had no influence on winter survival or crop yield. Our results suggest that winter canola can be successfully grown in the Great Plains and that proper management of N and P may increase winter survival and grain yield.

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“…Comparisons of wheat, narrow-leaf lupin (L. angustifolius L.), canola (Brassica napus L.) and the pasture legume, subterranean clover (T. subterranean L.) indicate that the critical Prequirement of the narrow leaf lupin is marginally (10%; Brennan and Bolland 2001) or considerably greater (70%; Ozanne et al 1976;Bolland 1992) than the critical requirements of wheat and subterranean clover (Ozanne et al 1976). Wheat and subterranean clover, in turn, have critical P requirements that are 25%-60% larger than that of canola (Bolland 1997;Brennan and Bolland 2001;Brennan and Bolland 2009). Because the critical P rankings of these crops are reasonably consistent, it is likely that better (targeted) management of soil P-fertility can be achieved across cropping rotations than is practised currently.…”

Section: Pasture and Crop Varieties With Low P Requirementsmentioning

confidence: 98%

Strategies and agronomic interventions to improve the phosphorus-use efficiency of farming systems

et al. 2011

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Phosphorus (P)-deficiency is a significant challenge for agricultural productivity on many highly P-sorbing weathered and tropical soils throughout the world. On these soils it can be necessary to apply up to five-fold more P as fertiliser than is exported in products. Given the finite nature of global P resources, it is important that such inefficiencies be addressed. For low P-sorbing soils, P-efficient farming systems will also assist attempts to reduce pollution associated with P losses to the environment. P-balance inefficiency of farms is associated with loss of P in erosion, runoff or leaching, uneven dispersal of animal excreta, and accumulation of P as sparingly-available phosphate and organic P in the soil. In many cases it is possible to minimise P losses in runoff or erosion. Uneven dispersal of P in excreta typically amounts to~5% of P-fertiliser inputs. However, the rate of P accumulation in moderate to highly P-sorbing soils is a major contributor to inefficient P-fertiliser use. We discuss the causal edaphic, plant and microbial factors in the context of Plant Soil (2011) 349:89-120 soil P management, P cycling and productivity goals of farms. Management interventions that can alter P-use efficiency are explored, including better targeted P-fertiliser use, organic amendments, removing other constraints to yield, zone management, use of plants with low critical-P requirements, and modified farming systems. Higher productivity in low-P soils, or lower P inputs in fertilised agricultural systems can be achieved by various interventions, but it is also critically important to understand the agroecology of plant P nutrition within farming systems for improvements in P-use efficiency to be realised.

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Comparing Fertilizer Phosphorus Requirements of Canola, Lupin, and Wheat

Cited by 25 publications

References 18 publications

Biofumigant Biomass, Nutrient Content, and Glucosinolate Response to Phosphorus

Biofumigant Biomass, Nutrient Content, and Glucosinolate Response to Phosphorus

Winter Canola Survival and Yield Response to Nitrogen and Fall Phosphorus

Strategies and agronomic interventions to improve the phosphorus-use efficiency of farming systems

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