The influence of ammonia in nutrient solution on growth and metabolism of cucumber plants

Wehrmann, J.

doi:10.1007/bf02185583

Cited by 36 publications

(15 citation statements)

References 16 publications

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“…In soils that have been acidic for longer time, nitrification rates may be higher due to the development of acid-resistant N reducers (De Boer and Kowalchuk, 2001). In soils with a high pH (>8.5), a significant proportion of

{NH}_{4}^{+}

(ammonium) is present as ammonia (NH 3 ; pK = 9.25), which is highly toxic to plant roots (Schenk and Wehrmann, 1979). Similarly, high pH values of surface water, e.g., as a result of aquatic photosynthesis (pH >10), can lead to NH 3 toxicity to submerged vegetation and fauna in N loaded aquatic systems (Thurston et al, 1981).…”

Section: Nitrogen: a Mobile Nutrient That May Become Toxicmentioning

confidence: 99%

Microbial Transformations of Nitrogen, Sulfur, and Iron Dictate Vegetation Composition in Wetlands: A Review

Lamers¹,

Diggelen²,

Camp³

et al. 2012

Front. Microbio.

111

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The majority of studies on rhizospheric interactions focus on pathogens, mycorrhizal symbiosis, or carbon transformations. Although the biogeochemical transformations of N, S, and Fe have profound effects on vegetation, these effects have received far less attention. This review, meant for microbiologists, biogeochemists, and plant scientists includes a call for interdisciplinary research by providing a number of challenging topics for future ecosystem research. Firstly, all three elements are plant nutrients, and microbial activity significantly changes their availability. Secondly, microbial oxidation with oxygen supplied by radial oxygen loss from roots in wetlands causes acidification, while reduction using alternative electron acceptors leads to generation of alkalinity, affecting pH in the rhizosphere, and hence plant composition. Thirdly, reduced species of all three elements may become phytotoxic. In addition, Fe cycling is tightly linked to that of S and P. As water level fluctuations are very common in wetlands, rapid changes in the availability of oxygen and alternative terminal electron acceptors will result in strong changes in the prevalent microbial redox reactions, with significant effects on plant growth. Depending on geological and hydrological settings, these interacting microbial transformations change the conditions and resource availability for plants, which are both strong drivers of vegetation development and composition by changing relative competitive strengths. Conversely, microbial composition is strongly driven by vegetation composition. Therefore, the combination of microbiological and plant ecological knowledge is essential to understand the biogeochemical and biological key factors driving heterogeneity and total (i.e., microorganisms and vegetation) community composition at different spatial and temporal scales.

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{NH}_{4}^{+}

Section: Nitrogen: a Mobile Nutrient That May Become Toxicmentioning

confidence: 99%

Microbial Transformations of Nitrogen, Sulfur, and Iron Dictate Vegetation Composition in Wetlands: A Review

Lamers¹,

Diggelen²,

Camp³

et al. 2012

Front. Microbio.

111

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“…..-uptake and -assimilation. With pH-KCl-values resulting from the decomposition of cyandiamide into urea, DCD and NH 4 , ammonia-toxicity [Schenk & Wehrmann, 1979] is highly probable and accounts for the low yields.…”

Section: Comparison Of the Performances Of Different N-carriers As Rementioning

confidence: 99%

Environmental factors and cultural measures affecting the nitrate content in spinach

Breimer¹

1982

Fertilizer Research

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3. Gezien de relatief grote spreiding in nitraatgehalten van b.v. spinazie mogen stikstofbemestingsadviezen die erop gericht zijn het overschrijden van een bepaald nitraatgehalte in het geoogste gewas te voorkomen niet gebaseerd worden op de gemiddelde nitraatgehalten die in bemestingsproeven per stikstoftrap worden gevonden.Dit proefschrift.4. Verschuiving van de oogst van spinazie van 's ochtends vroeg naar een later tijdstip op de dag leidt niet noodzakelijkerwijs tot lagere nitraatgehalten en biedt in verband met de verdere verwerking van het produkt eerder na-dan voordelen.5. De overwegend hoge nitraatgehalten van kasgroenten in de wintermaanden zijn eerder een gevolg van de heersende lichtomstandigheden en het kasklimaat dan van het gevoerde bemestingsbeleid.6. In het kader van de nitraatproblematiek is het aanbevelen van een gevarieerde voedselkeuze en het opstellen van richtlijnen ten aanzien van het bewaren en bereiden van bepaalde groenten vooralsnog zinvoller dan het aan een maximum binden van het nitraatgehalte van een aantal 'probleem'groenten.7. Bij de huidige stand van kennis omtrent het verband tussen voeding en kanker is het opstellen van globale richtlijnen ten aanzien van voedselbereiding en -gebruik juister dan het selectief uitsluiten dan wel aanbevelen van bepaalde voedingsmiddelen. page 55, heading of Table 11: read "on" for "in" page 61, equation in section 5.4.1: read "(0-60 cm)" for "(6-60)"and "(0-6 cm)" , "harvested" for "havested"Woord vooraf Een speciaal woord van dank wil ik richten tot de heer Matser voor de voortreffelijke wijze waarop hij het tekenwerk heeft verricht.Alle anderen die op een of andere wijze aan het onderzoek hebben bijgedragen en hier niet met name zijn genoemd wil ik bij deze ook bedanken.Tenslotte wil ik alle instellingen die faciliteiten hebben geboden om de in dit proefschrift beschreven proeven uit te voeren hartelijk danken. VI PrefaceThe present investigation was carried out in the period 1977-1981 at the Department of Soil Science and Plant Nutrition of the Agricultural University Wageningen, Netherlands. This university supplied the major financial support through a research grant, with additional financial support rendered by the Dutch Nitrogen Fertilizer Industry and Unilever Research, Netherlands. This support is gratefully acknowledged. In the present form this report is the author's doctoral dissertation submitted to the Faculty of the Agricultural University.The author hereby wishes to thank prof.dr.ir. A. van Diest for his critical reading and correction of the English text, and dr.ir. J.H.G. Slangen for his valuable advices during the investigations and in the course of the preparation of this report. The author also acknowledges the valuable support received from several Agricultural Research Institutes and University Departments which made facilities and manpower available to conduct the experiments and to transform the results obtained into the present report. VII Curriculum vitaeTibbe Breimer werd in 1949 geboren te Beilen. Na het behalen va...

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“…Hydroponic culture is the most common culture method for cucumber grown in greenhouse or plant production factory (Grewal et al 2011). Therefore, the nutrient solution which contains all necessary nutrients that the cucumber needs would be a key factor on the growth (Adams 1979;Schenk & Wehrmann 1979;Daum & Schenk 1998). The primary principle for establishing a nutrient solution is the nutrient composition, which is designed based on fertilizer absorption rule.…”

Section: Introductionmentioning

confidence: 99%

Hoagland nutrient solution promotes the growth of cucumber seedlings under light-emitting diode light

Cheng

2014

Acta Agriculturae Scandinavica, Section B — Soil & Plant Sc

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Light-emitting diode (LED), as an efficient, energy-saving light source, has been widely used in artificial light plant production systems. It is confirmed that the combination of red and blue LED lights shows good performance on plant growth and development. Based on the hydroponic culture system in plant production factory, selection of a suitable nutrient solution for specific crop would be very important. In this study, four different widely used nutrient solutions (Hoagland, Garden-style, Yamasaki, and SCAU) were tested in perlite culture cucumber seedlings during 40-day growth under 2:1 ratio of LED lights with 12 h photoperiod at 100 ± 5 μmol m −2 s −1 irradiance. The plant growth, morphology, pigments, biomass, photosynthetic characteristics, and nitrogen (N), phosphorus (P), and potassium (K) content were measured. Cucumber seedlings treated with formula SCAU showed weak appearance, less biomass, and reduced photosynthetic activity compared with those supplied with Hoagland. However, the differences between formulae Garden-style and Yamasaki were not obvious, but both of them showed significantly higher plant height, leaf area, total leaf number, and shoot N content compared to SCAU. It is concluded that formula Hoagland shows better performance regarding cucumber seedling growth under LED light.

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The influence of ammonia in nutrient solution on growth and metabolism of cucumber plants

Cited by 36 publications

References 16 publications

Microbial Transformations of Nitrogen, Sulfur, and Iron Dictate Vegetation Composition in Wetlands: A Review

Microbial Transformations of Nitrogen, Sulfur, and Iron Dictate Vegetation Composition in Wetlands: A Review

Environmental factors and cultural measures affecting the nitrate content in spinach

Hoagland nutrient solution promotes the growth of cucumber seedlings under light-emitting diode light

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