Effects of soil compaction and arbuscular mycorrhiza on corn (Zea mays L.) nutrient uptake

Miransari, Mohammad; Bahrami, H A; Rejali, Farhad; Malakouti, M. J.

doi:10.1016/j.still.2008.10.015

Cited by 109 publications

(51 citation statements)

References 61 publications

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“…AM fungi are able to enhance plant P uptake, which can contribute to the production of energy in the plant. In addition P can also substantially increase root growth, which can improve plant growth under stress by enhancing water and nutrient uptake (Miransari et al 2007(Miransari et al , 2008(Miransari et al , 2009a. When conditions are unfavorable to plant growth, for example under high level of drought stress, the host plant may not be able to develop a symbiosis with AM fungi, as the plant prefer to spend its energy to alleviate the stress rather than developing a symbiosis with AM fungi (Miransari et al 2007(Miransari et al , 2008.…”

Section: Discussionmentioning

confidence: 99%

Yield and yield components of hybrid corn (Zea mays L.) as affected by mycorrhizal symbiosis and zinc sulfate under drought stress

Sajedi

Ardakani

Rejali³

et al. 2010

Physiol Mol Biol Plants

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With respect to the significance of improving hybrid corn performance under stress, this experiment was conducted at the Islamic Azad University, Arak Branch, Iran. A complete randomized block design with three levels of irrigations (at 100%, 75% and 50% crop water requirement), two levels of arbuscular mycorrhizal (AM) fungi (Glumus intraradisis) (including control), and three levels of zinc (Zn) sulfate (0, 25 and 45 kg ha −1 ), was performed. Results of the 2-year experiments indicated that irrigation treatment significantly affected corn yield and its components at P=1%. AM fungi and increasing Zn levels also resulted in similar effects on corn growth and production. Although AM fungi did not significantly affect corn growth at the non-stressed irrigation treatment, at moderate drought stress AM fungi significantly enhanced corn quality and yield relative to the control treatment. The combined effects of AM fungi and Zn sulfate at 45 kg haapplication significantly affected corn growth and production. In addition, the tripartite treatments significantly enhanced corn yield at P=1%. Effects of Zn and AM fungi on plant growth under drought stress is affected by the stress level.

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Section: Discussionmentioning

confidence: 99%

Yield and yield components of hybrid corn (Zea mays L.) as affected by mycorrhizal symbiosis and zinc sulfate under drought stress

Sajedi

Ardakani

Rejali³

et al. 2010

Physiol Mol Biol Plants

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“…Thus, AM fungi can be used as a source of biological fertilization, since they are able to develop symbiotic associations with most terrestrial plants. They are able to alleviate the effects of different stresses both on growth and yield, by significantly increasing the uptake of water and nutrients (including N) by the host plant [123][124][125][126][127][128]. In particular, it has been reported that the hyphae of AM are able to use inorganic N more efficiently, thus enabling the host plant to indirectly have access to soil N through its fungal partner [129].…”

Section: Nitrogen Assimilation By Plantsmentioning

confidence: 99%

Improving Nitrogen Use Efficiency in Crops for Sustainable Agriculture

et al. 2011

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Abstract:In this review, we present the recent developments and future prospects of improving nitrogen use efficiency (NUE) in crops using various complementary approaches. These include conventional breeding and molecular genetics, in addition to alternative farming techniques based on no-till continuous cover cropping cultures and/or organic nitrogen (N) nutrition. Whatever the mode of N fertilization, an increased knowledge of the mechanisms controlling plant N economy is essential for improving NUE and for reducing excessive input of fertilizers, while maintaining an acceptable yield and sufficient profit margin for the farmers. Using plants grown under agronomic conditions, with different tillage conditions, in pure or associated cultures, at low and high N mineral fertilizer input, or using organic fertilization, it is now possible to develop further whole plant agronomic and physiological studies. These can be combined with gene, protein and metabolite profiling to build up a comprehensive picture depicting the different steps of N uptake, assimilation and recycling to produce either biomass in vegetative organs or proteins in storage organs. We provide a critical overview as to how our understanding of the agro-ecophysiological, physiological and molecular controls of N assimilation in crops, under varying environmental conditions, has been improved. We have used combined approaches, based on agronomic studies, whole plant physiology, quantitative genetics, forward and reverse genetics and the emerging systems biology. Long-term sustainability may require a gradual transition from synthetic N inputs to legume-based crop rotation, including continuous cover cropping systems, where these may be possible in certain areas of the world, depending on climatic conditions. Current knowledge and prospects for future agronomic development and application for breeding crops adapted to lower mineral fertilizer input and to alternative farming techniques are explored, whilst taking into account the constraints of both the current world economic situation and the environment.

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“…Borges et al (1998) em solo de textura franco-arenosa verificaram que a compactação afetou negativamente a nodulação da soja e por isso acarretou menor teor de N na parte aérea da cultura, mas, houve incremento nos teores de P, provavelmente devido à baixa capacidade de retenção de P naquele solo. Por outro lado, Miransari et al (2009) verificaram limitações na nutrição do milho em solo compactado, sugerindo a utilização de micorrizas para atenuar esta condição. Cabral et al (2012) encontraram que o N é o elemento mais limitado pela compactação do solo quando estudaram a absorção de N, P e K pelos capins Mombaça e Piatã.…”

Section: Introductionunclassified

Teor de macronutrientes e produtividade da soja influenciados pela compactação do solo e adubação fosfatada

et al. 2017

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R E S U M OO objetivo neste trabalho foi avaliar a influência da compactação e adubação fosfatada sobre o teor de macronutrientes e produtividade de grãos de soja na Chapada dos Parecis-MT. O estudo foi realizado em Latossolo Vermelho, em delineamento em blocos casualizados, esquema fatorial 2x4x4 e três repetições, sendo duas formas de adubação fosfatada (a lanço e no sulco), quatro doses de P 2 O 5 (0, 50, 100 e 150 kg ha -1 ) e quatro estados de compactação (PT0, PT2, PT4 e PT8 -semeadura direta com compactação induzida por tráfego de trator em zero, duas, quatro e oito passadas, respectivamente). A compactação, a forma de adubação e as doses de P 2 O 5 influenciaram a disponibilidade de fósforo no solo e a absorção do elemento pela planta, sendo que nos sistemas mais compactados adubados a lanço os teores de P na soja ficaram abaixo dos limites considerados adequados. A compactação reduziu os teores N, P, Ca e Mg e aumentou ou teores de K e S e as doses de P 2 O 5 aumentaram os teores de Mg da parte aérea da soja. A adubação a lanço em áreas compactadas reduziu a eficiência da adubação fosfatada com consequente redução da produtividade de grãos da soja.Palavras-chave: adubação a lanço, Glycine max, nutrição mineral, resistência do solo à penetração. A B S T R A C TThe objective of this study was to evaluate the influence of compaction and phosphorus fertilization on the macronutrient tenor and productivity of soybeans in Chapada dos Parecis-MT. The study was conducted on Latossolo Vermellho, in a randomized block design, factorial 2x4x4 and three repetitions, two forms of phosphorus fertilization (broadcasted and groove), four doses of P 2 O 5 (0, 50, 100 and 150 kg ha -1 ) and four compaction levels (PT0, PT2, PT4 and PT8 -tillage with compression-induced tractor traffic at zero, two, four and eight strides, respectively). Compaction, the form of fertilizer and P 2 O 5 levels influenced the availability of phosphorus in the soil and the absorption of the element by the plant, and in the more compressed systems fertilized by throwing the P levels in soybeans were below the limits considered appropriate. The compaction reduced N, P, Ca and Mg and increased or K and S and P 2 O 5 doses increased the Mg content of the soybean shoot. Fertilization by throwing in compacted areas reduced the efficiency of phosphorus fertilization with consequent reduction in soybean yield.

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Effects of soil compaction and arbuscular mycorrhiza on corn (Zea mays L.) nutrient uptake

Cited by 109 publications

References 61 publications

Yield and yield components of hybrid corn (Zea mays L.) as affected by mycorrhizal symbiosis and zinc sulfate under drought stress

Yield and yield components of hybrid corn (Zea mays L.) as affected by mycorrhizal symbiosis and zinc sulfate under drought stress

Improving Nitrogen Use Efficiency in Crops for Sustainable Agriculture

Teor de macronutrientes e produtividade da soja influenciados pela compactação do solo e adubação fosfatada

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