Influence of conservation tillage and glyphosate on soil structure and organic carbon fractions through the cycle of a 3-year potato rotation in Atlantic Canada

Carter, M.R.; Sanderson, J. B.; Holmstrom, D. A.; Ivany, J. A.; DeHaan, K. R.

doi:10.1016/j.still.2006.04.004

Cited by 15 publications

(15 citation statements)

References 44 publications

(54 reference statements)

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“…The mean and standard error for background soil properties measured in the spring at each site were similar between the two management systems; thus the data were combined (Table 3). The background values would be indicative of the preceding barley and red clover phases in the 3-yr potato rotation and are similar to those found for recent studies on temporal change of soil properties in the phases of potato rotations on the same soil type (Carter and Sanderson 2001;Carter et al 2007).…”

supporting

confidence: 85%

Soil micro-arthropod communities and microbial parameters in the potato ridge under two field management systems on sandy loams in Atlantic Canada

Carter¹,

Noronha²

2007

Can. J. Soil. Sci.

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Intensive forms of soil management occur in potato (Solanum tuberosum L.) production systems, but little is known about the influence of such practices on soil biological properties. Microbial biomass C, phosphatase activity, and the abundance (number), richness (family groups), and diversity of soil micro-arthropods (Collembola and mites) were compared in conventional and adjacent integrated pest management (IPM) systems of 3-yr potato rotations, established on fine sandy loams in Prince Edward Island, Atlantic Canada. The study was conducted at two sites over a 2-yr period. Soil microbial parameters were generally similar between management systems. Management differences showed some effect on micro-arthropod abundance and richness in three of the eight comparisons. Under optimum soil-water conditions, both Collembola and mite communities increased over the growing season regardless of management system. Key words: Soil management for potato, Collembola, mites, soil microbial biomass carbon, acid phosphatase, integrated pest management

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supporting

confidence: 85%

Soil micro-arthropod communities and microbial parameters in the potato ridge under two field management systems on sandy loams in Atlantic Canada

Carter¹,

Noronha²

2007

Can. J. Soil. Sci.

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“…to soil are well recognized. In potato systems, these amendments increase soil carbon and nitrogen, improve soil structural characteristics, improve moisture-holding capacity, and may confer disease-suppressive advantages [3][4][5][6][7][8][9]. These attributes may be especially appealing to producers with limited water and/or degraded soil resources.…”

Section: Introductionmentioning

confidence: 99%

Economic Potential of Compost Amendment as an Alternative to Irrigation in Maine Potato Production Systems

Halloran¹,

Larkin²,

DeFauw³

et al. 2013

AJPS

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Potato productivity in the northeastern US has been relatively constant for over 50 years, raising questions about what factors are limiting productivity. Research was initiated in 2004 to identify key constraints to potato productivity by evaluating Status Quo (SQ), Soil Conserving (SC), and Soil Improving (SI) cropping systems under both rainfed and irrigated management, and it was found that addition of compost or irrigation substantially increased yield. In this study, we employed partial budgeting to determine cost differences and their impact on net revenue for these cropping systems. Differences in systems were primarily associated with rotation length, tillage operations, compost and application expenses, and water management practices. When compost (as composted dairy manure) was annually applied at 19 Mg·ha −1 and evaluated over the entire 3-year crop rotation cycle, the compost-amended rainfed SI system was more expensive to maintain than the irrigated SC system if compost cost exceeded $3.63 Mg . Average marketable yields were used to calculate gross and net revenue for each system. Because average potato yield for the irrigated SQ system (28.4 Mg·ha ), we were able to compare cost of irrigation versus compost for achieving comparable yield. The compost-amended SI system under rainfed management generated more net revenue from the potato crop than the irrigated SQ system when compost costs were less than $7.42 Mg . When compared to the commonly used rainfed SQ system, rainfed SI achieved higher net revenue as long as compost cost was less than $22.95 Mg . The rainfed SI system achieved higher net revenue than the irrigated SC system when compost cost was $9.43 Mg −1 or less, but generated greater net revenue than the rainfed SC system regardless of compost costs, due to substantially higher yields associated with compost amendment. This investigation demonstrates that compost is a potentially viable substitute to irrigation for potato in the northeastern US; however, such potential is highly dependent on suitable compost sources and application costs.

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“…18,19 On the other hand, Tsui et al 20 showed that GPS and its commercial formulations can control the toxicity as well as the bioavailability of heavy metals in aquatic ecosystems. According to Carter et al 21 no GPS and tillage interactions is observed.…”

Section: Glyphosate (Gps) (mentioning

confidence: 94%

Adsorption of glyphosate in a forest soil: a study using Mössbauer and FT-IR spectroscopy

Benetoli¹,

Carneiro²,

Zaia³

et al. 2010

Quím. Nova

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Recebido em 28/5/09; aceito em 25/11/09; publicado na web em 23/3/10We studied the adsorption of glyphosate (GPS) onto soil mineral particles, using FT-IR and Mössbauer spectroscopy. From IR measurements for samples collected under native vegetation of a forest reserve, bands at 1632 and 1407 cm -1 could be attributed to the interaction between the carboxylic group of GPS and structural Al 3+ and Fe 3+ on the surface of mineral particles; bands at 1075 and 1000 cm -1 were observed only for cultivated soil. Mössbauer spectra for these soils were definitely fitted using a broad central doublet in addition to the magnetic component. This multiple quadrupolar component may be attributed to all non-magnetic Fe 3+ contributions, including that of the GPS/Fe 3+ complex.

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Influence of conservation tillage and glyphosate on soil structure and organic carbon fractions through the cycle of a 3-year potato rotation in Atlantic Canada

Cited by 15 publications

References 44 publications

Soil micro-arthropod communities and microbial parameters in the potato ridge under two field management systems on sandy loams in Atlantic Canada

Soil micro-arthropod communities and microbial parameters in the potato ridge under two field management systems on sandy loams in Atlantic Canada

Economic Potential of Compost Amendment as an Alternative to Irrigation in Maine Potato Production Systems

Adsorption of glyphosate in a forest soil: a study using Mössbauer and FT-IR spectroscopy

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