Effect of cropping sequence, fertilizers and farmyard manure on vesicular-arbuscular mycorrhizal fungi in different crops over three consecutive seasons

Harinikumar, K. M.; Bagyaraj, D. J.

doi:10.1007/bf00292578

Cited by 59 publications

(13 citation statements)

References 13 publications

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“…Although the increase of glomalin levels is usually related to greater AMF activity in systems with organic substances (Oehl et al, 2004), or adding organic nutrient sources, such as cattle manure, compost, and crop stubble, which significantly stimulate mycorrhizal development (Harinikumar and Bagyaraj, 1989;Douds et al, 1997;Joner, 2000;Castillo et al, 2004), the increase of glomalin levels could be due to interferences produced by determining protein by the Bradford reactive, effect that has recently been demonstrated when significant quantities of some organic materials are added to soils (Rosier et al, 2006).…”

Section: Compost Ph P-olsen Organic C Whc Cropsmentioning

confidence: 99%

Effect of Compost Application on Some Properties of a Volcanic Soil from Central South Chile

Valarini

Curaqueo

Seguel

et al. 2009

Chilean J. Agric. Res.

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Soil compost application is a common soil management practice used by small farmers of Central-South Chile that produces positive effects on soil properties and also promotes presence and activity of arbuscular mycorrhizal fungi (AMF). This fungi form symbiosis with plant roots improving plant nutrition, as well as producing glomalin, a glycoprotein that has been associated with soil aggregation stability. Therefore, the aim of this study was to evaluate, in an Ultisol from Central-South Chile, the effect of different doses of compost on some soil characteristics at the end of the third year of a crop sequence including wheat (Triticum aestivum L.), bean (Phaseolus vulgaris L.), and grassland (Lolium multiflorum Lam. associated with Trifolium repens L.). Studied soil characteristics included chemical (pH, available-P, organic C), biological (C and N biomass, AMF spore number, root colonization percentage, mycelium length, and glomalin content), as well as physical parameters (water holding capacity [WHC], and water stable aggregates [WSA]). Results showed that, in general, compost application increased soil pH, mycorrizal roots, mycelium length, glomalin levels, and WSA. Significant relationships were found between C and N biomass, C biomass and WSA, C biomass and glomalin, WSA and WHC, among others. Results suggest that compost application to this type of soil is a feasible option as a fertilizer substitute, and a way to avoid soil erosion by small local farmers involved in organic agriculture.

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Section: Compost Ph P-olsen Organic C Whc Cropsmentioning

confidence: 99%

Effect of Compost Application on Some Properties of a Volcanic Soil from Central South Chile

Valarini

Curaqueo

Seguel

et al. 2009

Chilean J. Agric. Res.

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“…Severe effects of N-based mineral fertilizer on AM colonization have additionally been reported [49][50][51][52], inconsistent with other findings [53,54]. However, organic nutrient sources, such as those applied in organic farming, are reported to stimulate AMF [49,[55][56][57][58][59][60][61][62], further emphasizing the importance of maintaining a healthy soil microbial community. The issue of whether specific indigenous microorganisms should be selectively stimulated in soil or selected microbial strains added in the form of mixed inocula to large-scale crop fields remains to be established.…”

Section: Microorganisms Stimulating Plant Nutrient Uptakementioning

confidence: 82%

Utilization of Natural Farm Resources for Promoting High Energy Efficiency in Low-Input Organic Farming

Arthurson

Jäderlund

2011

Energies

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Both organic and conventional farming processes require energy input in the form of diesel fuel for farming equipment, animal feed, and fertilizer compounds. The most significant difference between the two methods is the use in conventional farming of mineral fertilizers and pesticides that are minimally employed in organic management. It is argued that organic farming is more environmentally friendly, given that synthetic fertilizers mainly used at conventional farms are replaced with animal manure and cover crops. Nutrient uptake by plants is additionally enhanced by the effective use of rhizobia and other types of plant growth-promoting bacteria, in combination with arbuscular mycorrhizal fungi. This article aims to compare the amounts and/or types of energy and nutrients required for both farming systems and provide feasible suggestions for the sustainable use of farm resources in combination with good crop yields.

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“…Addition of manure or green manure to low organic matter soils increased colonization and performance of vesicular arbuscular mycorrhiza, whereas they were suppressed by manure additions to soils with moderate to high SOM contents (Ellis et al, 1992;Baltruschat and Dehne, 1988;Harinikumar and Bagyaraj, 1989;Brechelt, 1987Brechelt, , 1989Lambert and Weidensaul, 1991). Sojka and Upchurch (1999) asked, in light of publication of Milnear and Amy (1996), what negative weighting should be assigned to SOM for its role in trihalomethane (THM) contamination of chlorinated drinking water sources?…”

Section: Quality Soil Management 31mentioning

confidence: 99%

Quality soil management or soil quality management : performance versus semantics

Sojka

Upchurch

Borlaug

2003

Advances in Agronomy

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Effect of cropping sequence, fertilizers and farmyard manure on vesicular-arbuscular mycorrhizal fungi in different crops over three consecutive seasons

Cited by 59 publications

References 13 publications

Effect of Compost Application on Some Properties of a Volcanic Soil from Central South Chile

Effect of Compost Application on Some Properties of a Volcanic Soil from Central South Chile

Utilization of Natural Farm Resources for Promoting High Energy Efficiency in Low-Input Organic Farming

Quality soil management or soil quality management : performance versus semantics

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