The Effects of Inorganic Nitrogen form and CO(2) Concentration on Wheat Yield and Nutrient Accumulation and Distribution.
The Effects of Inorganic Nitrogen form and CO(2) Concentration on Wheat Yield and Nutrient Accumulation and Distribution.
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DOI：
10.3389/fpls.2012.00195
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发表时间：
2012
影响因子：
5.6
通讯作者：
Bloom A
中科院分区：
文献类型：
--
作者：
Carlisle E;Myers S;Raboy V;Bloom A
植物可以从土壤中以铵和硝酸盐的形式吸收无机氮。我们研究了在受控环境室中水培到衰老的小麦在生物量、产量以及养分积累和分配方面如何受到氮形式（与 ）和二氧化碳浓度（“低于常温”、“常温”和“高浓度”）的影响。作为唯一氮源的小麦对二氧化碳浓度的响应最强。暴露于低于环境和环境二氧化碳浓度的植物通常在两种氮形式下具有最大的生物量和养分积累。一般来说，提供的植物具有较高浓度的总氮、磷、钾、硫、钙、锌、铁和铜，而提供的植物具有较高浓度的镁、硼、锰，并且提供的植物含有与提供的植物相似的植酸含量，但具有更高的生物可利用的锌，这可能对人类健康产生影响。提供-的植物将更多的养分和生物量分配给地上组织，而-提供的植物将更多的养分分配给根部。这两种无机氮形式对植物生长和营养状况的影响非常明显，因此应将它们视为单独的营养物质。此外，植物生长和营养状况随大气二氧化碳浓度呈非线性变化。
Inorganic N is available to plants from the soil as ammonium and nitrate . We studied how wheat grown hydroponically to senescence in controlled environmental chambers is affected by N form ( vs. ) and CO2 concentration (“subambient,” “ambient,” and “elevated”) in terms of biomass, yield, and nutrient accumulation and partitioning. Wheat supplied with as a sole N source had the strongest response to CO2 concentration. Plants exposed to subambient and ambient CO2 concentrations typically had the greatest biomass and nutrient accumulation under both N forms. In general -supplied plants had higher concentrations of total N, P, K, S, Ca, Zn, Fe, and Cu, while -supplied plants had higher concentrations of Mg, B, Mn, and -supplied plants contained amounts of phytate similar to -supplied plants but had higher bioavailable Zn, which could have consequences for human health. -supplied plants allocated more nutrients and biomass to aboveground tissues whereas -supplied plants allocated more nutrients to the roots. The two inorganic nitrogen forms influenced plant growth and nutrient status so distinctly that they should be treated as separate nutrients. Moreover, plant growth and nutrient status varied in a non-linear manner with atmospheric CO2 concentration.
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DOI：
10.2136/sssaj1970.03615995003400020024x
发表时间：
1970-01-01
期刊：
SOIL SCIENCE SOCIETY OF AMERICA PROCEEDINGS
影响因子：
--
作者：
BENNETT, AC;ADAMS, F
通讯作者：
ADAMS, F
影响因子：
2.1
作者：
GASHAW, L;MUGWIRA, LM
通讯作者：
MUGWIRA, LM
影响因子：
2.3
作者：
Guttieri, M. J.;Peterson, K. M.;Souza, E. J.
通讯作者：
Souza, E. J.
影响因子：
4.1
作者：
HAUG, W;LANTZSCH, HJ
通讯作者：
LANTZSCH, HJ
影响因子：
4.8
作者：
Bloom, Arnold J.;Rubio-Asensio, Jose Salvador;Carlisle, Eli A.
通讯作者：
Carlisle, Eli A.