Sulphur in Nitrogen Metabolism of Legumes and Non-Legumes

Anderson, A. J.; Spencer, Donald

doi:10.1071/bi9500431

Cited by 45 publications

(42 citation statements)

References 8 publications

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“…Similar to our results, reduced seed yield of canola with N application under Sdeficient conditions was observed for Brassica species (Finlayson et al 1970;Nyborg et al 1974;Aulakh et al 1980;Janzen and Bettany 1984). Depression of seed yield at high N rates and low S levels was considered to be due to toxic levels of non-protein N, characteristic of S-deficient plants well supplied with N (Anderson and Spencer 1950).…”

Section: Seed and Straw Yieldsupporting

confidence: 79%

Interactive effects of N and S fertilizers on canola yield and seed quality on S-deficient Gray Luvisol soils in northeastern Saskatchewan

Malhi¹,

Gill²

2007

Can. J. Plant Sci.

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Malhi, S. S. and Gill, K. S. 2007. Interactive effects of N and S fertilizers on canola yield and seed quality on S-deficient Gray Luvisol soils in northeastern Saskatchewan. Can. J. Plant Sci. 87: 211-222. On marginally S-deficient soils in the Parkland region, application of high rates of N and other fertilizers in combination with more frequent production of canola (Brassica napus L. or B. rapa L.) causes rapid depletion of S and nutrient imbalance in soil, and S deficiency and yield reduction for canola. Field experiments on Gray Luvisol (Boralfs) soils deficient in available N and S were conducted in northeastern Saskatchewan. Interactive effects of N (0, 50 100 and 150 kg N ha -1 ) and S (0, 10, 20 and 30 kg S ha -1 ) rates on yield, seed quality, and uptake of S and N in canola were determined. In the absence of S application, increasing N rate made the S deficiency symptoms more severe, and reduced yield, S concentration, oil concentration, S uptake and N uptake of seed, but there was a general response of no effect or some increase in protein concentration, S and N uptake in straw up to 50 or 100 kg N ha -1 . When S was applied, canola yield, S concentration, S uptake and N uptake of seed as well as the yield and S uptake of straw increased with increasing N rate. Irrespective of S rate, fertilizer N reduced oil concentration and increased protein concentration in canola seed. With S fertilization, yield, S uptake and N uptake of seed and straw, and total S concentration and oil concentration in seed were substantially increased, whereas there was no consistent change in protein concentration of seed. The response of these parameters to S application was generally greater at higher N rates. Sulphur and N uptake measured data indicated that significant N × S interaction effects were more frequent and pronounced for seed yield than for straw yield, indicating that the response to N rate was relatively more dependent on the S level for seed than for straw. In summary, the results suggest that an increased amount of S is needed on these S-deficient Gray Luvisol soils in northeastern Saskatchewan to adequately meet the S requirements at high N rates for optimum yield and quality of canola. On note aussi une baisse du rendement, de la concentration de S, de la teneur en huile et de l'absorption de S et de N par la semence, mais la concentration de protéines et l'absorption de N et de S par la paille ne sont généralement pas touchées, ou alors augmentent très légèrement jusqu'au taux de 50 ou de 100 kg de N par hectare. Quand on applique un engrais S, l'augmentation du taux d'application des engrais N s'accompagne d'une hausse du rendement du canola, de la concentration de S, de l'absorption de N et de S par la graine ainsi que du rendement en paille et de l'absorption de S par celle-ci. Peu importe la quantité de S appliquée, les engrais N réduisent la teneur en huile et accroissent la concentration de protéines dans la graine. Les engrais S augmentent sensiblement le rendement, l'absorption de S et de N par ...

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Section: Seed and Straw Yieldsupporting

confidence: 79%

Interactive effects of N and S fertilizers on canola yield and seed quality on S-deficient Gray Luvisol soils in northeastern Saskatchewan

Malhi¹,

Gill²

2007

Can. J. Plant Sci.

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“…Sulphur deficiency decreased the concentration of N in symbiotic legumes (Andrew,\977b) and protein synthesis declined (Anderson & Spencer, 1950). However, as with Mg in our experiment, the same effects were observed in plants supplied with mineral N (Spencer, 1959).…”

Section: Effects Of Mg On N^-fixationcontrasting

confidence: 46%

Magnesium requirements of subterranean clover (Trifolium subterraneum L.) either reliant on symbiotic nitrogen fixation or supplied with nitrate

Scott

Robson

1991

New Phytologist

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SUMMARYSubterranean clover vt*as grown in solution culture with Mg supplied at 0, 10, 20, 30, 40, or HO//M in factoria) combination with nitrogen (N), supplied either symbiotically or as calcium nitrate (500 /(M). External requirements for Mg, as assessed by tbe concentration in tbe medium required for maximum growth, were similar for plants irrespective of N source and were in the range 21 to 24 /iM. Similarly, internal requirement was assessed by ibe critical concentration of Mg in whole shoots at ] 100 /Ag g"', and tbere was no difference between plants reliant on symbiotic X^-fixation and tbose supplied with CaCNOg)^. However, because of the effects of added Ca(NO^)2 on the distribution of Mg witbin plants, a higher minimum concentration of Mg in the youngest open leaf (YOL) was required for uninhibited growtb by plants reliant on N\-fixation.The concentration of N in sboots increased with increasing Mg in solution and Mg-deficient plants contained a lower proportion of total shoot N as protein. This occurred both in plants reliant on Nj-fixation or supplied witb nitrate. Thus Mg appeared to be required in greater amounts for protein synthesis tban for eitber nodule formation or N.,-lixation.

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“…The interaction of nitrogen and sulphur in grass production has been shown by Anderson and Spencer (1950) and O'Connor (1959O'Connor ( , 1961. The present experiment was designed to determine whether nitrogen and sulphur interacted in grass dry matter production in this area, at what levels of application this interaction occurred, whether all the species showed this interaction, and whether changes occurred in the botanical composition of the grassland.…”

Section: Introduction 47mentioning

confidence: 99%

The effects of different levels of nitrogen and sulphur on the yield and composition of tussock grassland

Vartha

1963

New Zealand Journal of Agricultural Research

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Nitrogen and sulphur were applied to undisturbed fescue tussock grassland to determine whether these nutrients interacted in grass production, at what levels of application the interaction occurred, and what changes in the proportions of the species took place.Total herbag~ yield for the period from March 1959 to March 1960, measured from 4 cuts, was significantly increased to the same extent by an application of either 20 Ib or 100 Ib sulphur per acre when 400 lb nitrogen per acre was also applied. The total fertiliser was applied in 2 split dressings in January and October.Where both nitrogen and sulphur were applied together, Y orkshire fog showed a superior yield response to that obtained with sweet vernal. Where sulphur was not applied and nitrogen was not limiting, sweet vernal was the superior competitor for the nitrogen and available sulphur. The combined yield of brown-top-danthonia was less than that of sweet vernal at all cuts except the final one, when this category showed a changed pattern of response to nitrogen and sulphur application. Changes in the seasonal pattern of response of the species to the fertiliser application are discussed.Reduced losses of standing herbage dry matter over the winter under high levels of nitrogen and sulphur application are recorded.

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Sulphur in Nitrogen Metabolism of Legumes and Non-Legumes

Cited by 45 publications

References 8 publications

Interactive effects of N and S fertilizers on canola yield and seed quality on S-deficient Gray Luvisol soils in northeastern Saskatchewan

Interactive effects of N and S fertilizers on canola yield and seed quality on S-deficient Gray Luvisol soils in northeastern Saskatchewan

Magnesium requirements of subterranean clover (Trifolium subterraneum L.) either reliant on symbiotic nitrogen fixation or supplied with nitrate

The effects of different levels of nitrogen and sulphur on the yield and composition of tussock grassland

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