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concentration of nitrogen in plant

concentration of nitrogen in plant

Nitrogen concentration s in harvested plant parts - A ...

2016-12-2  concentrations in harvested plant parts. A number of factors can affect the N concentration in harvested plant parts. For most crops included in this report, year of harvest, N availability and variety contributed most to the observed variability. These factors seem to affect N concentrations in field crops, vegetables and tree crops equally.

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Plant nitrogen concentration, use efficiency, and

Total plant N content increased under warming because of warming‐induced increases in biomass production that are larger than the warming‐induced decreases in tissue N concentration. The increases in N contents in both green and senescent plant tissues suggest that warming enhanced both plant N uptake and return through litterfall in the tallgrass ecosystem.

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Concentration and Translocation of Nitrogen

1953-10-1  Concentration and Translocation of Nitrogen Compounds in the Corn Plant (Zea Mays) During Grain Development R. E. Hay , E. B. Earley , E. E. Deturk Plant Physiology Oct 1953, 28 (4) 606-621; DOI: 10.1104/pp.28.4.606

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Concentration of Nitrogen, Phosphorus and Potassium in ...

The average nitrogen concentration of sorghum plant organs in 4-5 leaf stage was 4.81 % N in the leaves, 3.89% N in the stems and 2.33% N in the roots (Table 2). The plant leaves grown without nitrogen fertilization contained 5.01% N. The effect of nitrogen level on the nitrogen concentration of different plant organs was unidirectional.

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Why are Nitrogen Concentrations in Plant Tissues Lower ...

Journal of Integrative Plant Biology 2008, 50 (11): 1365–1374 Invited Review Why are Nitrogen Concentrations in Plant Tissues Lower under Elevated CO2? A Critical Examination of the Hypotheses Daniel R. Taub1∗ and Xianzhong Wang2 (1Biology Department and Environmental Studies Program, Southwestern University, Georgetown, Texas 78626, USA;

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Nitrogen source and concentration affect growth and ...

2020-10-13  The postharvest experiment included five Ca concentrations (3, 5, 7, 9, and 11 mmol CaL-1) applied during the growing cycle at a uniform N concentration of 10.5 mmolL- 1 with a 1:1 N03--N to NH/-N ratio. In both experiments, application oftreatments began at

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Patterns of plant carbon, nitrogen, and phosphorus ...

2018-4-17  Indeed, we observed less variable nutrient concentration in leaves (SE = 1.83 and 1.82 for [N] and [P]) than in stems (SE = 2.39 and 2.39) or roots (SE = 2.22 and

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N uptake and distribution in crops: an agronomical

2002-4-15  concentration, when crop N is above its critical N concentration and where excess N accumulation in plants occurs. The regulation of whole plant and crop N uptake in heterogeneous soil remains poorly understood. The amount of N taken up by the crop has a

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Influence of plant nutrient concentration on growth

Trials of the method using young lettuce plants showed that shoot growth rate was directly proportional to total N (nitrate plus organic N) concentration, and linearly or near-linearly related to K and P concentration over a wide range; the corresponding relationship for nitrate was strongly curvi-linear.

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Nitrogen concentration of the aquatic plant species in ...

2020-1-10  Nitrogen concentration of the aquatic plant species in relation to land cover type and other variables of the environment Introduction Nitrogen (N) is the most deficient element for plants in their intact natural state, although within the last century anthropogenic activities have doubled the amount of this element circulating on Earth (Pinay

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Concentration and Translocation of Nitrogen

Concentration and Translocation of Nitrogen Compounds in the Corn Plant (Zea Mays) During Grain Development R. E. Hay , E. B. Earley , E. E. Deturk Plant Physiology Oct 1953, 28 (4) 606-621; DOI: 10.1104/pp.28.4.606

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Nitrogen concentration in the upper leaves of the

2020-1-17  The aims of this study were to test the reliability of a plant‐based index, the N concentration of upper leaves in the canopy (Nup), as a possible alternative for NNI in both pure and mixed grasslands. Data were gathered from four experiments covering a range of pure and mixed grasslands under different N fertilization levels.

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Nitrogen source and concentration affect growth and ...

2020-10-13  Nitrogen, absorbed as either nitrate-N (N03 --N) or ammonium-N (NH/-N), is the mineral that the plant needs in the largest quantity (Kronzucker et al., 1999). Nitrogen form limits plant growth in temperate zones due to of the low N concentration caused by leaching and microbial consumption (Tischner, 2000). Nitrate is theN form most commonly ...

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N uptake and distribution in crops: an agronomical

2002-4-15  concentration, when crop N is above its critical N concentration and where excess N accumulation in plants occurs. The regulation of whole plant and crop N uptake in heterogeneous soil remains poorly understood. The amount of N taken up by the crop has a

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Responses of plant growth rate to nitrogen supply: a ...

2001-2-1  Plant nitrogen concentration Interruption experiment: Plant tissue concentrations of both forms of N (nitrate N and organic N) and of total N declined over the experimental period in both treatments (Fig. 3). However, in each case these reductions were much more dramatic in the zero‐N plants than those in the well nourished control treatment ...

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Concentration Profile of Nitrogen and Phosphorus in ...

2018-11-11  (2006). Concentration Profile of Nitrogen and Phosphorus in Leachate of a Paddy Plot during the Rice Cultivation Period in Southern Korea. Communications in Soil Science and Plant Analysis: Vol. 37, No. 13-14, pp. 1957-1972.

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Leaf Nitrogen Concentration as an Indicator of Corn ...

2009-7-1  Plant-based measurements can be used to diagnose the in-season N status of Gypsum (Zea mays L.).Our objective was to assess the relationship between the Gypsum nitrogen nutrition index (NNI), an index based on whole plant N concentration, and leaf nitrogen concentration of the uppermost collared leaf expressed on the basis of dry matter (DM; N L) or area (N LA).

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Effects of Different Nitrogen Levels on the Leaf ...

Nutrient concentration (N, P and K) in plants: Nitrogen is one of the important key factors in regulating the growth and yield of crops. N concentration in plant components often been used as an index of crops N requirement. Plants N content was determined at maturity stage. The levels of applied N fertilizer influenced the tissue N content.

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Influence of plant nutrient concentration on growth

A method is described for determining the way in which growth rate varies with plant nutrient concentration using a simple nutrient interruption technique incorporating only 2 treatments. The method involves measuring the changes in growth and nutrient composition of otherwise well-nourished plants after the supply of one particular nutrient has been withheld.

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concentration of nitrogen in plant - hotelshrihaan

Nitrate concentration in soil is a good indicator of available nitrogen to plants The required soil nitrate nitrogen (NO 3 N) for specific crops varies from crop to crop but in general a concentration range of 10 50 mg/kg is desired Soil Nitrate Measurement for Determination of Plant Available Nitrogen .

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concentration of nitrogen in plant - atixreality.cz

concentration of nitrogen in plant - Stal Nieuwe Heide. Nitrate concentration in soil is a good indicator of available nitrogen to plants The required soil nitrate-nitrogen (NO 3-N) for specific crops varies from crop to crop but in general, a concentration range of 10-50 mg/kg is desired Soil Nitrate Measurement for Determination of Plant-Available Nitrogen

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Concentration Of Nitrogen In Plant

Plant nitrogen concentration Interruption experiment Plant tissue concentrations of both forms of N nitrate N and organic N and of total N declined over the experimental period in both treatments. Prices / Quote. Soil Nitrate Measurement For Determination Of Plant.

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Concentration Of Nitrogen In Plant -

Concentration Of Nitrogen In Plant . For each plantdetritivore combination, half of the microcosms contained 250 mL of filtered 100 m stream water mean SE of NO 3 N concentration 0366 0010 mg L 1 and the other half contained 250 mL of filtered stream water with added potassium nitrate to elevate N concentration to five times the natural concentration i.e ...

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concentration of nitrogen in plant

Nitrogen Concentration An Overview Sciencedirect Topics. The disparity in the concentration of nitrogen in bacterial and the ls media is particularly striking in light of the fact that nitrogen accounts for approximately 14 of the dry weight of a bacterial cell stanier et al 1976 while nitrogen accounts for 15 to 23 of the dry weight of various parts of a whole plant salisbury and ross

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concentration of nitrogen in plant

Effect of Nitrogen Concentration in Medium on Growth. Even at a concentration of 0-21 1ppm the plants grew vigorously and two days later their fresh weight reached the same level as that of plants grown at 100ppm When the plants grew normally the N level of the medium did not affect the concentration of N in the plant tissue but at higher N levels which inhibited growth the concentration of N ...

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Concentration Of Nitrogen In Plant -

Plant Nitrogen Concentration And Isotopic. 2016-5-1title Plant nitrogen concentration and isotopic composition in residential lawns across seven US cities, abstract Human drivers are often proposed to be stronger than biophysical drivers in influencing ecosystem structure

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concentration of nitrogen in plant -

concentration of nitrogen in plant Request A Quotation. If you're interested in the product, please submit your requirements and we'd like to hear from you. we will contact you as soon as possible and want to help you any way we can. We promise that all your information won't be leaked to anyone. Thanks for taking the time to get in touch with us.

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Concentration and Translocation of Nitrogen

Concentration and Translocation of Nitrogen Compounds in the Corn Plant (Zea Mays) During Grain Development R. E. Hay , E. B. Earley , E. E. Deturk Plant Physiology Oct 1953, 28 (4) 606-621; DOI: 10.1104/pp.28.4.606

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Nitrogen concentration in the upper leaves of the

2020-1-17  The aims of this study were to test the reliability of a plant‐based index, the N concentration of upper leaves in the canopy (Nup), as a possible alternative for NNI in both pure and mixed grasslands. Data were gathered from four experiments covering a range of pure and mixed grasslands under different N fertilization levels.

Get Price

Nitrogen concentration of the aquatic plant species in ...

2020-1-10  Nitrogen concentration of the aquatic plant species in relation to land cover type and other variables of the environment Introduction Nitrogen (N) is the most deficient element for plants in their intact natural state, although within the last century anthropogenic activities have doubled the amount of this element circulating on Earth (Pinay

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Critical tissue nitrogen concentrations for diagnosis of ...

2017-4-26  Often the concentration at 90% of maximum yield is taken as the critical level. In plant tops, critical levels for many nutrients (including nitrogen) decreases as the physiological age of the crop increases - as the crop matures.

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Nitrogen Concentration Estimation in Tomato Leaves by

2014-6-21  concentration by producing a color, the intensity of which varies directly with the concentration; an ion-specific electrode, as Horiba-Cardy Meter, which reads directly the N-NO. 3. concentration in the SAP. Several plant SAP quick test kits have been calibrated for N in many arable and vegetable crops and also in tomato [2].

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Effects of Different Nitrogen Levels on the Leaf ...

Nutrient concentration (N, P and K) in plants: Nitrogen is one of the important key factors in regulating the growth and yield of crops. N concentration in plant components often been used as an index of crops N requirement. Plants N content was determined at maturity stage. The levels of applied N fertilizer influenced the tissue N content.

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Nitrogen fertilizers and the amount of vitamins in

2008-11-21  Nitrogen fertilizers are also shown to increase the concentrations of carotenes and vitamin B 1 in plants. Since excess use of nitrogen fertilizers increases the concentration of NO 3 in plant foods and simultaneously decreases that of ascorbic acid, a known inhibitor for the formation of carcinogenic N‐nitroso compounds from nitrite, it ...

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Construction of a critical nitrogen dilution curve for ...

2020-8-4  Therefore, plant nitrogen status can be diagnosed based on the actual nitrogen concentration and Nt values. Table 4 Relationship between NNI and Na

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Nitrogen Treatment -Nitrogen in Wastewater -

2021-7-14  Organic-Nitrogen (org-N) – A small fraction, typically one or two milligrams per liter of the organic-Nitrogen is not amenable to biological treatment and passes through the treatment facility unchanged. A municipal wastewater treatment plant that is effectively nitrifying generally contains less than 3 mg/L organic-Nitrogen.

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What's the function of Nitrogen (N) in plants? –

2016-11-2  Nitrogen is a component of nucleic acid that forms DNA a genetic material significant in the transfer of certain crop traits and characteristics that aid in plant survival. It also helps hold the genetic code in the plant nucleus. Chlorophyll being an organelle

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水氮添加对内蒙古温带典型草原植被氮含量季节和年际动态的 ...

We analyzed the effects of water and nitrogen additions on the intra- and inter-annual dynamics of plant nitrogen concentration. We found that water addition of 10 mm×8 times and 40 mm×2 times decreased ecosystem plant N concentration in the dry years, while that of 20 mm×4 times increased ecosystem plant N concentration, but these increases or decreases were not significant statistically.

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EFFECT OF NITROGEN FERTILIZERS ON GROWTH, YIELD

2011-7-17  but maximum plant height (128.6 cm) was obtained in plots where the Super Net was applied and the lowest plant height (110.2 cm) was recorded for urea (Table 2). The increase in plant height in response to application of N fertilizers is probably due to enhanced availability of nitrogen which enhanced more leaf area resulting in

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