Comparison of Nitrogen Constituents as Indicators of the Nitrogen Status of Italian Ryegrass, and Relation of Top to Root Growth<sup>1</sup>

Hylton, L. O.; Ulrich, Albert; Cornelius, Donald R.

doi:10.2135/cropsci1965.0011183x000500010009x

Cited by 15 publications

(11 citation statements)

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“…Italian ryegrass positive responded to N fertilizer, as already related by Hylton, Ulrich, and Cornelius (1965), Wilman (1965Wilman ( , 1975, and Keating and O'Kiely (2000) with increases around 85% in dry-matter yield comparing to control. The best yield (6.3 and 6.33 g and per pot) was obtained with ammonium nitrate and urea-NBPT, which were statistically equivalent to urea incorporated in 5 cm deep and urea coated with zeolite (200g kg −1 ) ( Table 1).…”

Section: Downloaded By [Simon Fraser University] At 10:30 18 Novembersupporting

confidence: 55%

“…Leaves are associated with metabolic activity, such as photosynthesis (Jarvis, Scholefield, and Pain 1995). Levels considered adequate for N in Italian ryegrass tiller ranged from 31.5 and 44 g kg −1 (Hylton, Ulrich, and Cornelius 1965). Keating and O'Kiely (2000) in the absence of fertilizer N input found N concentrations ranging from 21.1 to 24.5 g kg −1 .…”

Section: Downloaded By [Simon Fraser University] At 10:30 18 Novembermentioning

confidence: 97%

“…The increasing yield of ryegrass under grazing as a function of N rates was assessed in South Brazil by Lupatini et al (1998). From a forage quality standpoint, N fertilization increased whole-plant crude protein concentration (or total N levels) but effects on other forage quality variables were less consistent (Hylton, Ulrich, and Cornelius 1965;Wilman 1965Wilman , 1975Keating and O'Kiely 2000).…”

Section: Introductionmentioning

confidence: 99%

“…In general, the nutrient that is the most limiting for plant growth and affects the productivity of pastures is nitrogen (N) (Jarvis, Scholefield, and Pain 1995). Many authors pointed out that N fertilization increases ryegrass dry-matter yield (Hylton, Ulrich, and Cornelius 1965;Wilman 1965Wilman , 1975Høgh-Jensen and Schjoerring 1997;Keating and O'Kiely 2000). The increasing yield of ryegrass under grazing as a function of N rates was assessed in South Brazil by Lupatini et al (1998).…”

Section: Introductionmentioning

confidence: 99%

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Ammonia Volatilization from Soil, Dry-Matter Yield, and Nitrogen Levels of Italian Ryegrass

Bernardi

Mota²,

Cardosa³

et al. 2013

Communications in Soil Science and Plant Analysis

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Nitrogen (N) loss by ammonia (NH 3 ) volatilization is the main factor for poor efficiency of urea fertilizer applied to the soil surface. Losses can be suppressed by addition of zeolite minerals to urea fertilizer. The objective of this study was to evaluate ammonia volatilization from soil and dry-matter yield and nitrogen levels of Italian ryegrass.A greenhouse experiment was carried out with the treatments of urea, urea incorporated into soil, urea + urease inhibitor, urea + zeolite, ammonium nitrate, and unfertilized treatment. Ammonia was captured by a foam absorber with a polytetrafluoroethylene tape. There were few differences between zeolite and urease inhibitor amendments concerning NH 3 volatilization from urea. Results indicate that zeolite minerals have the potential to improve the N-use efficiency and contributed to increasing N uptake. Zeolite and urea mixture reduced 50% the losses by volatilization observed with urea.

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Section: Downloaded By [Simon Fraser University] At 10:30 18 Novembersupporting

confidence: 55%

Section: Downloaded By [Simon Fraser University] At 10:30 18 Novembermentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Ammonia Volatilization from Soil, Dry-Matter Yield, and Nitrogen Levels of Italian Ryegrass

Bernardi

Mota²,

Cardosa³

et al. 2013

Communications in Soil Science and Plant Analysis

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“…Since N occurs in the plant in a variety of forms, determination of N status could involve measuring total N or a specific form of N. Results of Hanway ( 1962) and Hylton et a!. ( 1965) suggest that, early in the growing season, stalk N03 is better than total N as an estimator of available N at the time of sampling.…”

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confidence: 99%

The Relationships of Nitrate Concentrations in Young Corn Stalks to Soil Nitrogen Availability and Grain Yields¹

Iversen¹,

Fox²,

Piekielek

1985

Agronomy Journal

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The importance of N in crop production makes accurate estimation of the available N in the soil desirable, especially with increasing costs of N fertilizers and concern for environmental hazards associated with excessive fertilization. Although several soil N availability indices have been developed, none of those tested has had wide success in Pennsylvania. A 2-yr study was conducted in central Pennsylvania to determine if nitrate (NO)) analysis of young corn plants (Ze11 mllys L.) was significantly related to soil N availability. The N03 contents of basal stalks were determined weekly for several weeks after emergence in two N fertilizer response experiments in 1982 and 1983. The soil in sites in 1982 and 1983 were Murrill silt loam, a Typic Hapludult, and Hagerstown silt loam, a Typic Hapludalf, respectively. Stalk N03 -N increased with increasing N fertilizer rates. The effect of plant age on stalk N03 concentration varied between the 2 yr, probably due to hail damage or available water differences. Differences in stalk NO) among N fertilizer treatments increased with time in both years. The optimum time for sampling appeared to be approximately 30 days after emergence (DAE). Correlations of stalk N03 at this time with relative grain yield and N uptake were significant (r>0.94) both years. Based on regression lines, at approximately 30 DAE, the critical concentration of stalk N03-N (for 95% of the plateau yield) was about 11 g N03-N kg-• in 1982, and 16 g N03-N kg-• in 1983. Combined data from both years had a significant but lower correlation (r=0.754) between stalk N03 and relative grain yield, with an apparent critical concentration of 15.7 g N03-N kg-•. The potential for predicting soil N availability from NO] tissue testing appears possible if the environmental factors that affect tissue NO] accumulation can be identified and quantified.

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Guiding fall fertilization of cool‐season turfgrass lawns with verdure tissue‐N tests

Guillard

Miele

Sürer³

et al. 2021

Crop Science

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Comparison of Nitrogen Constituents as Indicators of the Nitrogen Status of Italian Ryegrass, and Relation of Top to Root Growth¹

Cited by 15 publications

References 0 publications

Ammonia Volatilization from Soil, Dry-Matter Yield, and Nitrogen Levels of Italian Ryegrass

Ammonia Volatilization from Soil, Dry-Matter Yield, and Nitrogen Levels of Italian Ryegrass

The Relationships of Nitrate Concentrations in Young Corn Stalks to Soil Nitrogen Availability and Grain Yields¹

Guiding fall fertilization of cool‐season turfgrass lawns with verdure tissue‐N tests

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Comparison of Nitrogen Constituents as Indicators of the Nitrogen Status of Italian Ryegrass, and Relation of Top to Root Growth1

Cited by 15 publications

References 0 publications

Ammonia Volatilization from Soil, Dry-Matter Yield, and Nitrogen Levels of Italian Ryegrass

Ammonia Volatilization from Soil, Dry-Matter Yield, and Nitrogen Levels of Italian Ryegrass

The Relationships of Nitrate Concentrations in Young Corn Stalks to Soil Nitrogen Availability and Grain Yields1

Guiding fall fertilization of cool‐season turfgrass lawns with verdure tissue‐N tests

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Comparison of Nitrogen Constituents as Indicators of the Nitrogen Status of Italian Ryegrass, and Relation of Top to Root Growth¹

The Relationships of Nitrate Concentrations in Young Corn Stalks to Soil Nitrogen Availability and Grain Yields¹