Comparison of growth response and nitrogen uptake by canola and wheat following application of nitrogen fertilizer

Mason, M G; Brennan, Ross

doi:10.1080/01904169809365497

Cited by 36 publications

(21 citation statements)

References 13 publications

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“…Seed protein of many crops has been reported to be positively influenced by the addition of N fertilizers (Aulakh and Pasricha 1998;Mason and Brennan 1998;Johnston et al 2002). Although in the present study the addition of P did not affect the seed protein content of hemp, it is possible that P may indirectly affect seed protein when P becomes the limiting factor for the use of adequate N (Robson and Pitman 1983).…”

Section: Seed Protein Contentcontrasting

confidence: 52%

“…Reduction in seed oil content of canola as a result of increasing N rates has been reported (Mason and Brennan 1998;Jackson 2000). The reverse relationship of seed oil content and seed protein observed by other researchers (Bhatty 1964;Johnston et al 2002) was evident in the present study only in the way Fasamo responded to increasing rates of N, but not for Finola.…”

Section: Seed Oil Contentsupporting

confidence: 31%

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The effect of N and P fertilization on growth, seed yield and quality of industrial hemp in the Parkland region of Saskatchewan

Vera¹,

Malhi²,

Raney³

et al. 2004

Can. J. Plant Sci.

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Industrial hemp (Cannabis sativa L.) has sparked renewed interest in western Canada in recent years, and there is very little research information available on its fertilizer requirements. The objective of this study was to determine the effect of surface-broadcast ammonium nitrate and seedrow placed monoammonium phosphate fertilizers on the production and seed quality attributes of industrial hemp (cv. Fasamo and Finola). Field experiments were conducted on a Black Chernozem silty loam soil at Melfort, Saskatchewan, Canada, in 2000, 2001 and 2002. Increasing N rates significantly increased plant height, biomass, seed yield and seed protein content of hemp in all years. Seed-applied P fertilizer increased plant height in all years, and biomass in 2000, but reduced plant density, biomass and seed yield in 2001 and 2002. Finola consistently had lower plant height, earlier maturity, heavier seeds, and higher seed yield, seed protein content and seed oil content than Fasamo. The average amount of nitrate-N in the 0–60 cm soil was 40 kg N ha-1. Seed yield kg-1 of N was 9.4, 5.9, 4.5 and 3.7 kg ha-1 for Fasamo, and 10.6, 7.7, 6.0 and 4.5 kg ha-1 for Finola, respectively, at 40, 80, 120 and 160 kg ha-1 of soil plus fertilizer N. Key words: Fertilizer, hemp, nitrogen, phosphorus, rainfall, soil extractable P, soil nitrate-N, cultivars

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Section: Seed Protein Contentcontrasting

confidence: 52%

Section: Seed Oil Contentsupporting

confidence: 31%

The effect of N and P fertilization on growth, seed yield and quality of industrial hemp in the Parkland region of Saskatchewan

Vera¹,

Malhi²,

Raney³

et al. 2004

Can. J. Plant Sci.

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“…Nitrogen is the most important macroelement required for seed oil (Colnenne et al, 1998) and it is suggested that oilseed rape has a higher basic N demand for biomass development than wheat. The suitable quantity of N fertilizer is requisite for optimal economic yield and oil generation (Mason and Brennan, 1998). Smith et al (1988) reported that high amount of N fertilizer reduced the oil contents but enhanced the protein contents in canola and found a negative co-relation between oil concentration and protein contents.…”

Section: Introductionmentioning

confidence: 99%

Response of Nitrogen, Phosphorus and Potassium Fertilization on Productivity and Quality of Winter Rapeseed in Central China

Yousaf¹,

Li²,

Ren³

et al. 2016

IJAB

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Winter rapeseed (Brassica napus L.) is a dominant oilseed crop and has become an alternate crop both for edible oil production and energy agriculture. This study was conducted to find out the response of nitrogen (N), phosphorus (P) and potassium (K) fertilizer combinations on yield, oil and protein contents in oilseed rape crop. Four fertilizer treatments of N, P and K fertilizers (NPK, NP, NK, and PK) were applied according to the local recommendations at three different sites in Hubei province, during the year 2012-2013. Rapeseed yield was significantly increased by 61-72% under NPK fertilization as compared to PK across study sites. Yield responses to fertilization were ranked as NPK>NP>NK>PK, illustrating that N was the most limiting nutrient in rapeseed productivity following P and K. Oil and protein yields were significantly affected to applied N, P, and K fertilizers. Among all combinations, NPK combination performed best. Oil and protein contents along with other fatty acids (palmitic acid, stearic acid, oleic acid, linoleic acid and linolenic acid) were not influenced significantly by the application of P and K fertilizer. By increasing the amounts of N fertilizer application, oil contents of rapeseed reduced and protein contents increased consistently. These results suggest that NPK combination is more productive as compared to the other combinations.

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“…Nitrogen efficiency decreases with an increase in N supply (Maman et al 1999). Thus, fine-tuned N nutrition together with identification of more efficient genotypes could result in better use of N fertilizers (Mason and Brennan 1998) and may lead to an increase in crop productivity (Lynch 1998).…”

Section: Introductionmentioning

confidence: 99%

Nitrogen efficiency of canola genotypes varies between vegetative stage and grain maturity

Balint

Rengel

2008

Euphytica

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There is no information on whether N efficiency in canola at maturity can be reliably determined by screening germplasm in the vegetative stage. Twelve canola genotypes identified in preliminary screening study as having either high or low N efficiency indices were tested for consistency in N efficiency between the vegetative stage and maturity. Plants were grown in a glasshouse under low or adequate N supply and N efficiency was assessed using the following criteria: dry weight at deficient N supply, relative yield at low vs. adequate N supply, and N utilisation efficiency. None of the 12 tested genotypes was classified as efficient or inefficient under all three criteria. One genotype (46C74) was classified as efficient under two criteria, and one genotype (Surpass 300 TT) was inefficient under two criteria. At maturity, three additional efficiency criteria were used: harvest index, N harvest index, and oil and protein concentration in seed. Two genotypes (Wesway and 46C74) (ranked as efficient at vegetative stage) remained efficient at maturity under most of the efficiency criteria used. On the other hand, genotype Surpass 603 CL ranked inefficient during the vegetative stage was ranked as efficient at maturity under two criteria. Overall, there was little consistency in the N efficiency ranking between vegetative stage and maturity in 12 tested genotypes. Screening canola germplasm for N efficiency for breeding purposes would therefore require an assessment at maturity.

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Comparison of growth response and nitrogen uptake by canola and wheat following application of nitrogen fertilizer

Cited by 36 publications

References 13 publications

The effect of N and P fertilization on growth, seed yield and quality of industrial hemp in the Parkland region of Saskatchewan

The effect of N and P fertilization on growth, seed yield and quality of industrial hemp in the Parkland region of Saskatchewan

Response of Nitrogen, Phosphorus and Potassium Fertilization on Productivity and Quality of Winter Rapeseed in Central China

Nitrogen efficiency of canola genotypes varies between vegetative stage and grain maturity

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