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You searched for: Journal Journal of plant nutrition Remove constraint Journal: Journal of plant nutrition Publication Year 2011 Remove constraint Publication Year: 2011 Source 2011 v.34 no.14 Remove constraint Source: 2011 v.34 no.14
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1. Above- and below-ground nutrient tissue concentration and leaf pigment changes in patagonian woody seedlings grown under light and soil moisture gradients

Author:
Esteban, Rosina Soler; Pastur, Guillermo Martínez; Lencinas, María Vanessa; Moretto, Alicia; Peri, Pablo Luis
Source:
Journal of plant nutrition 2011 v.34 no.14 pp. 2222-2236
ISSN:
1532-4087
Subject:
Nothofagus pumilio; belowground biomass; calcium; carbon; carotenoids; chlorophyll; ecophysiology; greenhouses; leaves; light intensity; magnesium; natural regeneration; nitrogen; nutrients; phosphorus; pigments; potassium; seedlings; soil water
Abstract:
... To understand the ecophysiology of natural regeneration above- and below-ground nutrient tissue concentration and leaf pigment changes in Nothofagus pumilio (lenga) seedlings grown in three light intensities (4%, 26% and 64% of natural irradiance) and two soil moisture levels (40–60% and 80–100% soil capacity) under greenhouse controlled conditions were evaluated. Carbon (C), nitrogen (N), phospho ...
DOI:
10.1080/01904167.2011.618580

2. Detection and discrimination of nutrient deficiencies in sunflower by blue-green and chlorophyll-a fluorescence imaging

Author:
Cadet, Émilie; Samson, Guy
Source:
Journal of plant nutrition 2011 v.34 no.14 pp. 2114-2126
ISSN:
1532-4087
Subject:
Helianthus annuus; chlorophyll; fluorescence; growth retardation; image analysis; leaves; nitrogen; nutrient deficiencies; phosphorus; potassium
Abstract:
... Fluorescence imaging was utilized to demonstrate the potential of blue-green fluorescence (BGF) and chlorophyll-a fluorescence (ChlF) to discriminate nitrogen (N), phosphorus (P), and potassium (K) deficiencies in sunflower plant showing similar growth inhibition. Only K-deficient leaves displayed significant increase of the BGF intensity. The epidermal UV-transmittance estimated by the ratio of C ...
DOI:
10.1080/01904167.2011.618572

3. Effect of foliar boron application on growth, reproduction, and oil quality of olive trees conducted under a high density planting system

Author:
Larbi, Ajmi; Gargouri, Kamel; Ayadi, Mohamed; Dhiab, Ali Ben; Msallem, Monji
Source:
Journal of plant nutrition 2011 v.34 no.14 pp. 2083-2094
ISSN:
1532-4087
Subject:
Olea europaea; boron; crop yield; flowering; fruit set; leaves; lipid content; oils; olives; planting; reproduction; trees; vegetative growth
Abstract:
... Boron (B) foliar treatments (300 mg L⁻¹ as Solubor DF) were applied at two different dates in 2006 and 2007, prior to flowering and just after fruit set, on olive (Olea europaea L.) trees with no visual symptoms of B deficiency. Leaf B level increased after the first application as compared to control (−B). After July treatment, leaf B levels in −B and +B treated trees increased when compared to t ...
DOI:
10.1080/01904167.2011.618570

4. Effect of nitrogen and sulfur fertilization on yield components, seed and oil yields of canola

Author:
Ahmad, Gulzar; Jan, Amanullah; Arif, Muhammad; Jan, Mohammad Tariq; Shah, H.
Source:
Journal of plant nutrition 2011 v.34 no.14 pp. 2069-2082
ISSN:
1532-4087
Subject:
application methods; branches; canola; field experimentation; nitrogen; pods; seed oils; seed yield; sulfur; yield components
Abstract:
... Field experiments were conducted to evaluate the effects of nitrogen (N) and sulfur (S) levels and their methods of application on canola. Branches plant⁻¹, pods plant⁻¹ and biological yield significantly increased with increase in nitrogen level and no significant increase in seed pod⁻¹ and seed and oil yields occurred beyond 120 kg N ha⁻¹. However, thousand seed weight consistently decreased wit ...
DOI:
10.1080/01904167.2011.618569

5. Effect of soil amendment with thin stillage and glycerol on plant growth and soil properties

Author:
Qian, Peiyuan; Schoenau, Jeff; Urton, Ron
Source:
Journal of plant nutrition 2011 v.34 no.14 pp. 2206-2221
ISSN:
1532-4087
Subject:
soil organic carbon; soil properties; wheat; soil amendments; crop yield; nutrients; bioenergy industry; phosphorus; dry matter accumulation; soil fertility; hydrogen; metals; oxygen; plant growth; canola; glycerol; byproducts; ethanol production; biodiesel; biomass; salinity; nitrogen; fertilizers; microorganisms; pH; urea; Saskatchewan
Abstract:
... Controlled environment experiments were set up in 2007 and 2008 to evaluate the potential of using by-products of the biofuel industry as soil amendments to improve fertility and plant growth in Saskatchewan soils. Trials were run with thin stillage (a by-product of ethanol production) and glycerol (by-product of biodiesel production). Canola (B. napus L.) and wheat (T. aestivum) were grown as the ...
DOI:
10.1080/01904167.2011.618579

6. Leaf photosynthesis, biomass production and water and nitrogen use efficiencies of two contrasting naked vs. hulled oat genotypes subjected to water and nitrogen stresses

Author:
Zhao, B. P.; Ma, B. L.; Hu, Y. G.; Liu, J. H.
Source:
Journal of plant nutrition 2011 v.34 no.14 pp. 2139-2157
ISSN:
1532-4087
Subject:
Avena sativa; biomass production; chlorophyll; genotype; grain yield; leaves; nitrogen; nitrogen content; nutrient use efficiency; oats; photosynthesis; pot culture; water stress
Abstract:
... Water and nitrogen (N) are the two most important factors influencing the growth and yield of oat (Avena sativa). A pot culture study was conducted to determine the physiological and biomass production of contrasting oat genotypes to water and N supply conditions. With sufficient water, biomass yield of the naked ‘Shadow’ was 12.4% and 10.0% greater than ‘Bia’ in the treatments 750 and 1250 mg N p ...
DOI:
10.1080/01904167.2011.618574

7. Modeling rice grain yield response to nitrogen fertilization for delayed-flood production

Author:
Harrell, Dustin L.; Walker, Timothy W.; Salassi, Michael E.; Bond, Jason A.; Gerard, Patrick D.
Source:
Journal of plant nutrition 2011 v.34 no.14 pp. 2158-2171
ISSN:
1532-4087
Subject:
costs and returns; cultivars; economists; environmental stewardship; farms; grain yield; models; nitrogen; nitrogen fertilizers; planning; rice; Louisiana; Mississippi
Abstract:
... Nitrogen (N) fertilization decisions are important for farm profit and environmental stewardship. The objective of this research was to evaluate and compare three models (linear-plateau, quadratic-plateau, and quadratic) that can potentially be used to describe rice yield response to N fertilization. Fertilizer N response trials of four newly released rice cultivars from seven sites located in bot ...
DOI:
10.1080/01904167.2011.618575

8. Seasonal changes in nutrient availability for sulfur-amended everglades soils under sugarcane

Author:
Ye, Rongzhong; Wright, Alan L.; McCray, J. Mabry
Source:
Journal of plant nutrition 2011 v.34 no.14 pp. 2095-2113
ISSN:
1532-4087
Subject:
buffering capacity; growing season; nutrient availability; phosphorus; potassium; seasonal variation; soil pH; sugarcane; sugars; sulfur; zinc
Abstract:
... The objective of this study was to evaluate effects of elemental sulfur (S) addition on soil pH and availability of macro- and micronutrients during the sugarcane growing season. Sulfur application did not significantly reduce soil pH when applied at 0 to 448 kg S ha⁻¹ due to the high soil buffering capacity. Water extractable phosphorus (P) and potassium (K) for soils receiving the highest S rate ...
DOI:
10.1080/01904167.2011.618571

9. Survey of evaluation techniques for studying rangeland grass species nutritional values

Author:
Askarizadeh, D.; Heshmati, G. A.; Pessarakli, M.; Jouri, M. H.
Source:
Journal of plant nutrition 2011 v.34 no.14 pp. 2172-2182
ISSN:
1532-4087
Subject:
DNA; cattle; databases; deer; diet; elks; forbs; goats; grasses; grazing; laboratory animals; nutritive value; philosophy; rabbits; range management; rangelands; sheep; shrubs; stomach; surveys; vision; wildlife; Iran; North America
Abstract:
... Studying the philosophy of animal grazing and diet selection in rangelands is crucial. There are vast activities regarding animal diet that have gradually been developed since the beginning of rangeland research studies. Survey of the investigation of the animal diets throughout the world can assist in gathering and categorizing the compiled information on this subject. The present study is done b ...
DOI:
10.1080/01904167.2011.618576

10. Threshold model in studies of ecological recovery in bermudagrass (cynodon dactylon l.) under nutrient stress conditions

Author:
Heshmati, G. A.; Pessarakli, M.
Source:
Journal of plant nutrition 2011 v.34 no.14 pp. 2183-2192
ISSN:
1532-4087
Subject:
Cynodon dactylon; case studies; color; culture media; grazing; longevity; models; nutrient content; nutrients; roots; shoots; turf grasses
Abstract:
... Bermudagrass (Cynodon dactylon L.), an important turfgrass as well as a grazing species, was used as a case study for the threshold model in this paper. The growth of this grass in terms of root and shoot lengths and general quality (i.e., color) were evaluated under various levels (full, 1/4, 1/8, and 1/16 N) of nutrients in the culture medium. The concept of a simplified threshold model was desc ...
DOI:
10.1080/01904167.2011.618577

11. Using tissue analysis as a tool to predict bahiagrass phosphorus fertilization requirement

Author:
Silveira, Maria L.; Obour, Augustine K.; Vendramini, Joao M.; Sollenberger, Lynn E.
Source:
Journal of plant nutrition 2011 v.34 no.14 pp. 2193-2205
ISSN:
1532-4087
Subject:
Paspalum notatum; greenhouse experimentation; nitrogen; phosphorus; soil analysis; tissue analysis; Florida
Abstract:
... Tissue analysis in combination with soil testing has been recently incorporated in the fertilization recommendations for bahiagrass in Florida; however, limited research is available to validate the proposed critical tissue phosphorus (P) level. A greenhouse experiment was conducted to identify the critical minimum tissue P concentration below which bahiagrass dry matter (DM) yield is impacted. Tr ...
DOI:
10.1080/01904167.2011.618578

12. Variation in phosphorus efficiency among brassica cultivars ii: changes in root morphology and carboxylate exudation

Author:
Aziz, Tariq; Steffens, D.; Rahmatullah*,; Schubert, S.
Source:
Journal of plant nutrition 2011 v.34 no.14 pp. 2127-2138
ISSN:
1532-4087
Subject:
Brassica; alkalinity; biomass production; calcium; citric acid; cultivars; dry matter accumulation; exudation; fineness; malic acid; phosphorus; rock phosphate; root growth; roots; secretion; shoots; tartaric acid
Abstract:
... Increased phosphorus (P) efficiency is needed to sustain agriculture productivity on soils with low available P. Significant differences were found among Brassica cultivars for growth, P utilization, and remobilization under P deficiency (see our companion paper, Aziz et al., 2011a). To identify the possible mechanisms of P acquisition from low soluble P compounds, four cultivars (‘Rainbow’, ‘CON- ...
DOI:
10.1080/01904167.2011.618573