Efecto De La Cero Labranza Sobre Algunas Actividades Biológicas en Un Alfisol Del Sur De Chile

Z, Marysol Alvear; B, Mario Pino; R, Carlos Castillo; Cepeda, Carmen Trasar; Sotres, Fernando Gil

doi:10.4067/s0718-27912006000200004

Cited by 8 publications

(8 citation statements)

References 38 publications

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“…Speir et al (1980) established that enzymatic activity decreases rapidly in fallow soils while maintained in soils with crops because of enzymes released by plant roots and soil microorganisms. Indeed, only the presence of plant residues favors enzymatic activity by increasing OM content in Alfisol soils in southern Chile (Alvear et al, 2006). Furthermore, Tang and Yu's (1999) data indicate that the leguminous rhizosphere helps enzymatic activity, and suggest the possibility that this crop has unique, inherent characteristics that stimulate this activity (Bandick and Dick, 1999).…”

Section: Treatmentsmentioning

confidence: 99%

Biological Activity in a Degraded Alfisol Amended with Sewage Sludge and Cropped with Yellow Serradela (Ornithopus compressus L.)

Celis¹,

H²,

E³

et al. 2011

Chilean J. Agric. Res.

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There are few studies about the impact of sewage sludge on the biological properties in Alfisols of the Chilean Coastal Range drylands. Hence, the objective of this study was to evaluate its effect on the microbial respiration and enzymatic activities of a degraded Alfisol located in the Bío Bío Region (Chile) that was cropped with yellow serradela (Ornithopus compressus L.). Sludge was added to the soil at rates of 15, 30, and 60 t ha -1 ; he following treatments were defined: L15-P = 15 t ha -1 sludge + O. compressus; L30-P = 30 t ha -1 sludge + O. compressus; L60-P = 60 t ha -1 sludge + O. compressus; L15 = 15 t ha -1 sludge; L30 = 30 t ha -1 sludge; L60 = 60 t ha -1 sludge; CP = non-amended soil, cropped; and C = non-amended soil, no crop. Soil microorganism activity was evaluated by respirometry. Hydrolytic enzyme activity representative of soil C, N, and P cycles was determined. Crop phytomass development was also evaluated. The amount of C-CO2 produced by soil microorganisms was directly proportional to the dose of amended sludge (p ≤ 0.05). Similarly, greater β-glucosidase, urease, and acid phosphatase were more active at 60 t sludge ha -1 . However, both respiratory and enzymatic activities were greater (p ≤ 0.05) in treatments with sludge-amended soil cropped with O. compressus. This greater activity was notorious when the legumes achieved greater phytomass development, thus highlighting the root's stimulating effect on soil biological activity.

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Section: Treatmentsmentioning

confidence: 99%

Biological Activity in a Degraded Alfisol Amended with Sewage Sludge and Cropped with Yellow Serradela (Ornithopus compressus L.)

Celis¹,

H²,

E³

et al. 2011

Chilean J. Agric. Res.

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“…Pesticides can be classified in a number of ways: by target pest, their mode of action or chemical family. Several studies have shown that chemical products used in farming (e.g., fertilisers, pesticides, herbicides) have a marked influence on the soil enzyme activity (Alvear 2006 Arachis hypogaea L.) is one of the vastly produced oilseed crop, cultivated in more than 100 countries in the world, referred as a universal crop. India is one of the largest producers and consumer of groundnut in the world.…”

Section: Introductionmentioning

confidence: 99%

“…Pesticides fied in a number of ways: by target pest, their mode of action or chemical family. Several studies at chemical products used in farming (e.g., fertilisers, pesticides, herbicides) have a marked influence on the soil enzyme activity (Alvear et al, 2006 Anantapuramu District, a semiarid region of Andhra Pradesh, ranks first in the area of groundnut (Arachis hypogaea L.) cultivation, but its productivity is low and fluctuates around 9q/ ha −1 on average (Anonymous 2014). Enzymes in soils mainly come from plants, soil animals and microorganisms and connected covalently, crosslinked, copolymerized, adsorbed and included in the microcapsules of soil particles (Girish S., Ajit V., 2011).…”

Section: Introductionmentioning

confidence: 99%

Activity of soil protease enzyme as influenced by dimethomorph and pyraclostrobin fungicides to groundnut Arachis hypogaea L. soil.

Ramanamma¹,

Rangaswamy²

2017

IJTSRD

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Soil microbial diversity is indispensable to maintain functional diversity and enzyme-mediated critical soil processes that detoxify soil from environmental pollutants, like pesticides. Thus, the present study was carried out to assess the effect of different concentrations of the fungicides on the activity of protease, in clay and sandy loam groundnut soils of Anantapuramu District of Andhra Pradesh , India. The use of pesticides in agriculture has highly increased during the last 40 years to increase crop yields. However, today most pesticides are polluting water, soil, atmosphere and food. Pesticides are also impact soil enzymes, which are essential catalysts ruling the quality of soil life. A laboratory experiment was conducted to study the effect of selected fungicides, dimethomorph and pyraclostrobin, at concentrations ranging from 0 to10 kg ha-1 on the activity of protease. The activities of protease were significantly more at pyraclostrobin and dimethomorph levels of 5.0 and 2.5 kg ha-1 , respectively. But at higher concentrations of 7.5 and 10 kg ha-1 respectively, dimethomorph and pyraclostrobin were toxic to protease activities. In soil samples receiving 2.5-5.0 kg ha-1 of the fun accumulation of reducing sugar was pronounced more at 20 days, and the activity of the protease was drastically decreased with increasing period of incubation up to 30 and 40 days. The results of the present study thus, clearly, indicate that a the Fungicides in cultivation of groundnut, at field application rates improved the activity of protease in soils.

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“…Crop species and the use of chemicals have asignificant influence on the enzymatic activity in soil (Acosta-Martínez and Tabatabai, 2000). Several studies have shown that chemical products used in farming (e.g., fertilisers, pesticides, herbicides) have a marked influence on the soil enzyme activity (Alvear et al, 2006). In this context, the potato crop is particularly important, as it is one of the top ten major crops worldwide.…”

Section: Introductionmentioning

confidence: 99%

Enzymatic activities of potato crop soils subjected to conventional management and grassland soils

Avellaneda-Torres

Melgarejo

Narváez‐Cuenca

et al. 2013

J. Soil Sci. Plant Nutr.

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The effect of soil management on the activities of urease, phosphodiesterase, arylsulphatase, and β-glucosidase in soil samples from three municipalities in the Cundinamarca department of Colombia,Tausa (T), Villapinzón (V), and Zipaquirá (Z), was evaluated in this study. Two types of samples were taken in each municipality: 1) soils with a history of potato (Solanum tuberosum) farming using conventional soil managementand agrochemical application (P) and 2) grassland soils that had not been treated with agrochemicals (G). The urease activity for T, V, and Z was higher int he G samples. The phosphodiesterase and arylsulphatase activities for T and V were greater in the G samples, while the β-glucosidase activity for T and Z was greater in the P samples. The phosphodiesterase and β-glucosidase activities for T were lower than for the other two municipalities, indicating a possible effect of the site on these enzymatic activities. The differences in the enzymatic activities among the samples indicate an important effect of soil use and management on the soil's biochemical properties.

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Efecto De La Cero Labranza Sobre Algunas Actividades Biológicas en Un Alfisol Del Sur De Chile

Cited by 8 publications

References 38 publications

Biological Activity in a Degraded Alfisol Amended with Sewage Sludge and Cropped with Yellow Serradela (Ornithopus compressus L.)

Biological Activity in a Degraded Alfisol Amended with Sewage Sludge and Cropped with Yellow Serradela (Ornithopus compressus L.)

Activity of soil protease enzyme as influenced by dimethomorph and pyraclostrobin fungicides to groundnut Arachis hypogaea L. soil.

Enzymatic activities of potato crop soils subjected to conventional management and grassland soils

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