Relationships between Grain Nitrogen Concentrations and the Nitrogen Status of Corn

Cerrato, M. E.; Blackmer, A. M.

doi:10.2134/agronj1990.00021962008200040019x

Cited by 34 publications

(34 citation statements)

References 11 publications

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“…N, and High N treatments, respectively. These values correspond approximately to corn grain N contents when fertilizer is applied 150 kg ha -1 below, at, and 150 kg ha -1 above the economic optimum N rate, respectively, as reported by Cerrato and Blackmer (1990). Rates of return were estimated by linear regression based on annual grain yield as reported in Bundy et al (2011) and Supplemental Table S1.…”

Section: Calculations and Statistical Analysismentioning

confidence: 90%

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Apparent Stability and Subtle Change in Surface and Subsurface Soil Carbon and Nitrogen under a Long‐Term Fertilizer Gradient

Collier

Ruark

Naber

et al. 2017

Soil Science Soc of Amer J

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Uncertainty exists regarding the depth and extent to which agricultural practices affect soil properties, in particular soil organic C (SOC). In this study we examined the impact of 53 yr of continuous corn (Zea mays L.) receiving varying rates of inorganic N fertilizer with complete stover return on soil properties including SOC, total N, and bulk density (BD) to a depth of 1 m. In the treatment receiving virtually no applied N there was a significant reduction in soil N content at 0 to 30 cm over the study period, while the treatment receiving N in excess of recommended application levels was similar to the treatment receiving recommended rates of N fertilizer. Trends in SOC content were similar to those for total N, but a significant treatment effect was detectable throughout the entire 1-m soil profile sampled. Over the course of the study, all experimental fields appeared to have lost approximately 6 cm of topsoil through erosion, with the lowest N rate plots subsiding a further 2 cm due to compaction. Despite using disruptive management practices (moldboard plowing and application of anhydrous ammonia), declines in soil C and N content were not apparent for this soil type under conditions of low slope and the linear gains in productivity realized under the two higher N rate treatments. Thus N fertilizer was a benefit to this cropping system, rather than a detriment, and was sufficient to allow maintenancebut not building-of SOC.

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Section: Calculations and Statistical Analysismentioning

confidence: 90%

“…‡ Based on grain N and C content, with estimates as follows: grain C content = 0.45, grain N content = 0.0115, 0.013, and 0.0135 for Low N, Rec. N, and High N, respectively (Cerrato and Blackmer, 1990). at 30 to 100 cm (Table 4), a proportion consistent with those reported by Gray et al (2015) for wet climate zones in eastern Australia.…”

Section: Treatmentmentioning

confidence: 98%

Apparent Stability and Subtle Change in Surface and Subsurface Soil Carbon and Nitrogen under a Long‐Term Fertilizer Gradient

Collier

Ruark

Naber

et al. 2017

Soil Science Soc of Amer J

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“…There is, however, only little information about the impact of N fertilization on the accumulation and redistribution of mineral nutrients. In numerous experiments, N fertilization increased the N concentration in the grains of maize (BEN- NET et al 1953, PIERRE et al 1977, MEISINGER et al 1985 CERRATO and BLACKMER 1990). At ' $ Dedicated to Professor Dr. G. GEISLER.…”

Section: Introductionmentioning

confidence: 99%

Effect of Nitrogen Fertilization on Grain Yield and Accumulation of Nitrogen, Phosphorus and Potassium in the Grains of Tropical Maize*

Thiraporn

Feil

Stamp

1992

J Agronomy Crop Science

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To investigate the effect of increasing rates of N on grain yield and the accumulation of N, P and K in the grains of maize, three experiments were conducted at Farm Suwan (Kasetsart University), Thailand (latitude 14.5°N). Grain yields and biomass increased considerably up to 80 kg N ha‐1. Higher doses (160 kg N) did not enhance the biomass and improved the grain yield only slightly. The harvest index did not respond uniformly to increasing rates of N. Nitrogen fertilization increased yields of grain N, P and K. The concentration of N in the grains generally increased with increasing N fertilization. The effect of increasing rates of N on P and K concentrations in the grains was different in the experiments. The total uptake of N and P increased up to 160 kg N, that of K up to 80 kg N. The N harvest index was only slightly affected by N fertilization whereas the K harvest index tended to increase and the P harvest index increased strongly with increasing rates of N. Kernel weights were higher at high levels of N. The weights of kernel N, P and K remained either almost stable or increased slightly with increasing rates of N fertilizer. Zusammenfassung Effekt der Stickstoff‐Düngung auf den Kornertrag und die Akkumulation von Stickstoff, Phosphor und Kalium in den Körnern von tropischem Mais Um den Effekt von steigenden Stickstoffgaben auf den Kornertrag und die Akkumulation von Stickstoff, Phosphor und Kalium in den Körnern von Mais zu untersuchen, wurden drei Versuche auf Farm Suwan (Kasetsart University), Thailand (14,5° nördlicher Breite), durchgeführt. Die Kornerträge stiegen bis zu einer Düngermenge von 80 kg N ha‐1 beträchtlich. Höhere N‐Gaben (160 kg N) führten zu etwas höheren Kornerträgen, vermochten jedoch die Biomasse nicht mehr zu steigern. Der Ernteindex reagierte auf steigende N‐Gaben uneinheitlich. Die N‐Düngung erhöhte die N, P und K‐Mengen in den Körnern. Die N‐Kon‐zentration in den Körnern stieg mit steigender N‐Versorgung. Der Effekt einer steigenden N‐Düngung auf die P und K‐Konzentration in den Körnern war in den Experimenten verschieden. Die gesamte Aufnahme von N und P stieg bis 160 kg N, die von K nur bis 80 kg N. Der N‐Ernteindex wurde von der N‐Düngung nur gering beeinflußt, der K‐Ernteindex tendierte zu einem Anstieg und der P‐Ernteindex zeigte einen deutlichen Anstieg mit sich erhöhendem N‐Angebot. Die N‐Düngung erhöhte das TKG. Die N, P und K‐Massen der Körner waren entweder fast unverändert oder stiegen geringfügig mit erhöhter N‐Zufuhr.

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“…Macy's approach was not successful in determining a critical grain N concentration for maximum maize (Zea mays L.) yields in Iowa, and could not separate zones of luxury consumption from zones of poverty adjustment (Cerrato and Blackmer, 1990). Macy's approach was not successful in determining a critical grain N concentration for maximum maize (Zea mays L.) yields in Iowa, and could not separate zones of luxury consumption from zones of poverty adjustment (Cerrato and Blackmer, 1990).…”

Section: Defining Sufficiency Levels Of Nitrogen In Cool-season Turfgmentioning

confidence: 99%

Defining Sufficiency Levels of Nitrogen in Cool‐Season Turfgrass Lawns Using Macy's Concept

et al. 2014

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Few correlation or calibration studies have been conducted to determine or validate sufficiency levels of N concentrations in the clippings of turfgrass for color and growth responses. In a series of field experiments conducted across six consecutive growing seasons (2007–2012) in Connecticut, clipping samples of Kentucky bluegrass (Poa pratensis L.) and tall fescue (Festuca arundinacea Schreb.) lawns were used to estimate yields and then analyzed for N concentrations. Chlorophyll and normalized difference vegetative index (NDVI) meters were used to quantify turf color before sampling. Macy's concept of three nutritional zones of plant tissue nutrient concentration was used to identify minimum and critical concentrations of N in the clippings that define sufficiency ranges for color and growth responses, in addition to luxury consumption. Averaged across all variables and seasons (spring, summer, and fall), the sufficiency ranges of N concentration in the clippings were estimated to be 32 to 46 g kg–1 for Kentucky bluegrass, and 28 to 42 g kg–1 for tall fescue. Differences in minimum and critical concentrations among seasons and between species were thought to be due to demand‐driven nutrient uptake. Luxury consumption of N was observed in both species. When used in context with local conditions, tissue analysis for N concentrations in cool‐season turfgrass clippings can provide an objective basis for guiding N fertilization.

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Relationships between Grain Nitrogen Concentrations and the Nitrogen Status of Corn

Cited by 34 publications

References 11 publications

Apparent Stability and Subtle Change in Surface and Subsurface Soil Carbon and Nitrogen under a Long‐Term Fertilizer Gradient

Apparent Stability and Subtle Change in Surface and Subsurface Soil Carbon and Nitrogen under a Long‐Term Fertilizer Gradient

Effect of Nitrogen Fertilization on Grain Yield and Accumulation of Nitrogen, Phosphorus and Potassium in the Grains of Tropical Maize*

Defining Sufficiency Levels of Nitrogen in Cool‐Season Turfgrass Lawns Using Macy's Concept

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