Micronutrient uptake and distribution in mycorrhizal or phosphorus-fertilized soybeans

Pacovsky, R. S.

doi:10.1007/bf02374618

Cited by 114 publications

(70 citation statements)

References 21 publications

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“…A close inspection of Table 1 revealed interesting characteristic of AP, which higher levels tended to occur in the soils under the orchard and on the intercropping land with fruit trees. This pattern of AP may be due to the fact that more mycorrhizal roots in crops especially in leguminous crops compared to apple trees increase the efficiency of P absorption (Pacovsky, 1986;Gnekow and Marschner, 1989).…”

Section: Discussionmentioning

confidence: 99%

Analysis on soil nutrient characteristics for sustainable land use in Danangou catchment of the Loess Plateau, China

Wang

Yang

et al. 2003

CATENA

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Understanding of the characteristics of soil organic matter (SOM) and soil nutrients at the field and catchment scale is important for refining agricultural management practices and for improving sustainable land use. In order to analyze on SOM and nutrient differences among different land use types and their relationships between land use, landscape position and slope aspect, 94 sampling sites including 7 land uses were selected along 6 transects in the Danangou catchment with an area of 3.5 km 2 on the Loess Plateau of China. Significant differences in SOM, total N (TN), available N (AN) and available P (AP) among these land uses were found. Higher values in SOM, TN and AN were measured in soils from woodland and grassland, but lower values in the soils from fallow land and cropland. Compare SOM and TN with cropland, intercropping land had high contents. The adjusted R 2 values of regression models for SOM and nutrients with land use, landscape position and slope aspect ranged from 0.501 (SOM) to 0.134 (AP). A comparison between average predicted and measured values for SOM and each soil nutrient revealed that the predicted values in TP and AN for each land use, in SOM and TN except for fallow land and in AP except for intercropping land, shrub land and woodland, fell with in a 95% confidence interval about the measured values. The simplified predicted models of soil nutrients combined with the key value of SOM for soil quality can serve to improve agricultural practices and to provide useful information on sustainable land use. Improvement in SOM and nutrients would be expected from more C inputs including manure and crop residues and alternative cultivation practices such as developing intercropping system, building terrace for soil and water conservation, return the cropland with SOM content less than a key value of 0.44% to the grassland and woodland on the hilly areas similar to the Loess Plateau of China. the same time, it is recommended that nitrogen fertilization addition could be decreased in the foot slope and increased on the upper slope. D

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Section: Discussionmentioning

confidence: 99%

Analysis on soil nutrient characteristics for sustainable land use in Danangou catchment of the Loess Plateau, China

Wang

Yang

et al. 2003

CATENA

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“…This view is supported by the fact that increasing available fertilizer phosphorus frequently increases N 2 fixation by Rhizobium in the absence of mycorrhizae. It is also thought that the plant-Rhizobium system benefits from the presence of arbuscular mycorrhizae because the mycorrhizae correct not only P deficiency but also any nutrient deficiency in the plant that might be limiting to the Rhizobium (Pacovsky 1986 ;O'Hara et al 1988). Increased mineral nutrient levels in the plant would not only benefit Rhizobium directly, but would also lead to increased photosynthesis, making a greater proportion of photosynthates available to the Rhizobium nodules (Pang and Paul 1980 ;Harris et al 1985).…”

Section: Introductionmentioning

confidence: 99%

Plant mediated interactions between Pseudomonas fluorescens, Rhizobium leguminosarum and arbuscular mycorrhizae on pea

Andrade

Leij

Lynch

1998

Letters in Applied Microbiology

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G . A ND R AD E, F .A .A . M. DE L EI J A N D J .M . LY NC H . 1998. Using undisturbed sandy loam soil cores heavily infested with mycorrhizae, the effects of the antibiotic-producing Pseudomonas fluorescens strain F113 and its non-antibiotic derivative Ps. fluorescens F113G22 on nodulation by introduced and indigenous Rhizobium were studied. Furthermore, the effects of the different microbial inocula on the colonization of the pea roots by mycorrhizae were studied. It was found that Ps. fluorescens F113 enhanced nodulation by Rhizobium fourfold, while the nodules produced were much larger and strongly pigmented (pink) compared with those in other treatments. The proportion of roots colonized by arbuscular mycorrhizae was not significantly affected by the different treatments.

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“…Mycorrhizal colonization of dry bean roots can also alleviate Zn deficiencies and increase plant Zn uptake (Leggett and Westermann, 1986). In addition to direct benefit to the plant, arbuscular mycorrhizal fungi (AMF) can increase nutrient availability to benefit N2 fixation (Mosse, 1973;Pacovsky and Fuller, 1986;AzconAguilar and Barea, 1992;Hwang et al, 1993).…”

Section: Introductionmentioning

confidence: 99%

Mycorrhizal colonization and nutrient uptake of dry bean in manure and compost manure treated subsoil and untreated topsoil and subsoil

Tarkalson

Jolley

Robbins

et al. 1998

Journal of Plant Nutrition

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Eroded or leveled Portneuf silt loam soils (coarse-silty mixed mesic Durixerollic Calciorthid) have been restored to topsoil productivity levels by manure application, but not by other organic sources such as cheese whey. In dry bean (Phaseolus vulgaris L. cv. Viva), only soil organic matter and Zn concentration of leaf tissue correlated with improved yields. Manure application could potentially increase or decrease mycorrhizal colonization depending on which factors dominate. Manured and unmanured soils from a long-term field experiment were sampled and mycorrhizal spores were quantified, but there was no significant manure treatment effect on spore numbers. A greenhouse study was conducted to see if manure or composted manure freshly applied to subsoils would facilitate mycorrhizal colonization in dry bean roots compared to untreated topsoil or conventionally fertilized subsoil. Low level colonization (< 5%) was observed 21 days after planting 1867

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Micronutrient uptake and distribution in mycorrhizal or phosphorus-fertilized soybeans

Cited by 114 publications

References 21 publications

Analysis on soil nutrient characteristics for sustainable land use in Danangou catchment of the Loess Plateau, China

Analysis on soil nutrient characteristics for sustainable land use in Danangou catchment of the Loess Plateau, China

Plant mediated interactions between Pseudomonas fluorescens, Rhizobium leguminosarum and arbuscular mycorrhizae on pea

Mycorrhizal colonization and nutrient uptake of dry bean in manure and compost manure treated subsoil and untreated topsoil and subsoil

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