Managing Sulphur in Agroecosystems

Oenema, O.; Postma, R.

doi:10.1007/978-94-017-0289-8_3

Cited by 13 publications

(11 citation statements)

References 19 publications

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“…Tissue concentrations at R1 between 1.7 and 2.1 g kg −1 may be considered moderate as minor yield increases were still seen within this range. Oenema and Postma (2003) suggested the critical S concentration for corn ear leaf at silking was 1.0 g kg −1 , yet S concentrations were considered low between 1.0 and 2.0 g kg −1 . An increase in tissue S concentration early in corn growth (e.g., before V6) followed by moderate declines (from ≥2.1 g kg −1 at V6 to no less than 1.7 g kg −1 by R1) may increase opportunities for a positive yield response to S tissue concentrations but this early increase in tissue S may also be accomplished with sufficient N fertilization rates.…”

Section: Resultsmentioning

confidence: 99%

“…To determine optimum N and S management regimes in corn, research has investigated the use of N/S ratios, tissue sufficiency ranges at various growth stages, and partitioning of N and S in vegetative tissue and grain. Nitrogen and S plant ratios have been considered optimal between 16 to 25:1 while sufficient V6 and R1 plant tissue S concentrations have been considered to range from 2.1 to 4.0 g kg −1 (Reneau, 1983; Kline et al, 1989; Oenema and Postma, 2003; Chen et al, 2008). A range of S rates and higher degrees of soil S deficiency (soil organic matter [OM] < 49 g kg −1 ) have been suggested for further investigation in corn S management (Pagani et al, 2009).…”

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Corn Response to Nitrogen at Multiple Sulfur Rates

2015

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Early planting into cooler soils, increased nutrient removal by higher yielding hybrids, and reduced atmospheric S depositions suggest reassessing S application strategies for corn (Zea mays L.) in Michigan. In 2012 and 2013, fi eld studies were initiated to evaluate corn response to S and N applications by measuring S and N plant concentrations, uptake, grain yield, and agronomic effi ciency (AE). Th e study was arranged as a split-plot randomized complete block with four replications. Main plots consisted of three S rates (0, 23, and 45 kg S ha -1 ) while subplots consisted of six N rates (0, 56, 112, 169, 225, and 281 kg N ha -1 ). Corn tissue V6 S concentrations were in the suffi ciency range for optimal corn growth without S in 1 of 2 yr. Without N fertilizer, signifi cant yield diff erences were observed among the 0, 23, and 45 kg S rates in 2012 (6.7, 7.7, and 9.5 Mg ha -1 , respectively) and 2013 (3.2, 5.7, and 3.5 Mg ha -1 , respectively). In 2013, signifi cant yield increases to S applications occurred only at ≤56 kg N ha -1 . Data suggest fi ne-textured soils with organic matter ≥ 28 g kg -1 and residual S ≥ 6-8 mg kg -1 are suffi cient for maximum corn yield without S when N application rates exceed 56 kg N ha -1 . Choosing optimal corn N application rates may satisfy physiological S requirements under these fi eld conditions indicating N/S ratio may not have been suffi cient at N rates ≤ 56 kg N ha -1 .

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Section: Resultsmentioning

confidence: 99%

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confidence: 99%

Corn Response to Nitrogen at Multiple Sulfur Rates

2015

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“…e ratio of nitrogen to sulphur in proteins is regarded as a reliable indicator of sulphur supply in plants. According to Oenema and Postma [92], its proper value amounts to 15 : 1. In a study by Klikocka and Cybulska [4], the average N : S ratio in spring wheat was greater by about 21 : 1.…”

Section: Interactions and Correlation Between Nutrientsmentioning

confidence: 99%

Sulphur and Nitrogen Fertilization as a Potential Means of Agronomic Biofortification to Improve the Content and Uptake of Microelements in Spring Wheat Grain DM

Klikocka

Marks

2018

Journal of Chemistry

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The aim of the field experiment was to analyze the impact of various nitrogen and sulphur doses on the content and uptake of spring grains of iron, manganese, copper, and zinc. The study was conducted in southeastern Poland (2009–2011) on Cambisols (WRB 2007), in conditions of low soil sulphur content. The experiment included 4 doses of N fertilization (0, 40, 80, and 120 kg/ha) and 2 doses of S application (0 and 50 kg/ha). The analysis showed that fertilization with nitrogen and sulphur had a positive effect on the studied features of spring wheat. The combination resulted in beneficial content of Fe, Mn, Zn, and Cu (Fe 45.00, Mn 35.67, Zn 34.63, and Cu 3.65 mg/kg) and beneficial uptake of microelements by grain DM (Fe 216.1, Mn 171.3, Zn 166.4, and Cu 17.52 g/ha). The highest grain yield (5.43 t/ha) was obtained after the application of nitrogen at a dose of 80 kg/ha and sulphur at a dose of 50 kg/ha. In relation to control, this increase of grain yield amounted to 13.3%. Significant correlations were also found between grain yield and the content and uptake of all microelements, as well as between elements. No significant correlation was found only between the content and uptake of Fe and the content of Mn and between the content of Mn and Cu. Sulphur supplementation of NPK fertilization can be a good means of agronomic biofortification for spring wheat in order to increase the content and uptake of micronutrients such as Fe, Mn, Zn, and Cu.

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“…Our results are similar to those reported by Khalid et al (21) who showed that an increase in ammonium sulfate significantly increased the concentration of S in canola biomass. Ammonium sulfate is immediately available for plant uptake and sulfates can accumulate more than what is needed by the plant (29 available sulfate by microbially mediated S oxidation, which is contingent upon temperature, moisture, and particle size, making sulfate S gradually available throughout the season and possibly the following season (13). The lack of tissue S response to the application of elemental sulfur could be due to the delay in availability of sulfate sulfur.…”

Section: Effects Of S Rates and Sources On Canola Tissue Sulfur And Nmentioning

confidence: 99%

Soil Testing Determines the Lack of Sulfur Response in Canola Grown in Oklahoma

et al. 2012

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Canola (Brassica napus) production in Oklahoma has sharply increased in recent years due to its benefits as a winter rotation crop for continuous wheat producers. However, limited research exists about sulfur requirements of canola in the Southern Great Plains and producers are being encouraged to apply S regardless of soil test results. The objectives of this two‐year study were to evaluate the effect of two sources of S and four application rates of 0, 11.2, 22.4, and 33.6 kg/ha on yield, seed oil content, and tissue N and S concentrations of two canola cultivars. Field experiments were conducted during the 2009‐2010 and 2010‐2011 growing seasons in Lahoma and Perkins, OK. In 2009 and 2010, the combined average total soil sulfate sulfur for the experimental site was 48 and 63 kg/ha at Perkins and 51 and 108 kg/ha at Lahoma, respectfully. There were no statistical yield differences between S sources and among rates for either canola cultivar over both growing seasons. The lack of canola yield and oil content response to applied S was probably due to the adequate supply of sulfate sulfur in the soil. Therefore, it is important to take soil samples before deciding if S fertilizer is needed.

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Managing Sulphur in Agroecosystems

Cited by 13 publications

References 19 publications

Corn Response to Nitrogen at Multiple Sulfur Rates

Corn Response to Nitrogen at Multiple Sulfur Rates

Sulphur and Nitrogen Fertilization as a Potential Means of Agronomic Biofortification to Improve the Content and Uptake of Microelements in Spring Wheat Grain DM

Soil Testing Determines the Lack of Sulfur Response in Canola Grown in Oklahoma

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