Effect of zero-tillage on organic carbon and total nitrogen content, and their distribution in different N-fractions in loessial soils

Fleige, Heiner; Baeumer, K.

doi:10.1016/0304-3746(74)90004-3

Cited by 54 publications

(17 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The occurrence of a lower concentration of extractable nutrients and organic C in the surface layers of the soil, when the crop was sown into a cultivated seedbed compared with direct drilling, has been found by many authors for various environments (Triplett and Van Doren 1969;Fleige and Baeumer 1974;Ellis et al 1977;Drew and Saker 1978;Ellis and Howse 1980;Cornish 1987). The effects of the different tillage systems on the concentration of nutrients in the soil, which occurred in the present experiment, are generally similar to effects shown by these authors.…”

Section: Processes Involved In the Effect Of Tillage On The Nutrient supporting

confidence: 90%

“…Most of the work related to the effect of tillage on the chemical fertility of the soil has been performed on fine-textured soils (clays, clay-loams and silt-loams) (Fleige and Baeumer 1974;Dowdell and Cannell 1975;Moschler et al 1975;Blevins et al 1977;Drew and Saker 1978) and much of the work has been performed on soils of neutral to alkaline pH (Fleige and Baeumer 1974;Dowdell and Cannell 1975;Drew and Saker 1978;Dowdell et al 1983;Cornish 1987). Few studies have investigated the effect of tillage on the chemical fertility of acid sandy soils in mediterranean environments with higher winter rainfall and spring drought.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The influence of alternative tillage systems on the distribution of nutrients and organic-carbon in some common Western Australian wheatbelt soils

White¹

1990

Soil Res.

View full text Add to dashboard Cite

The effect of reduced cultivation on the chemical fertility of three agricultural soils important in Western Australia was investigated.The experiment compared the effect of different tillage systems for continuously cropping wheat on the distribution of extractable P, extractable K, total N, organic C and pH for soils ranging from a sand to a sandy clay loam. Three tillage systems were applied (conventional cultivation, direct drilled with a combine, direct drilled with a triple disc drill) and the distribution of nutrients was measured to a depth of 25 cm. Developments were monitored for a period of 9 years.Clear differences between treatments were evident within the first 3 years of the experiment. Relative differences between treatments remained constant after this time. The concentrations of extractable P, extractable K, total N and organic C in the soil were all higher with direct drilling than with conventional cultivation, regardless of soil type or environment. The concentration of these elements declined in all treatments throughout the duration of the experiment. Major differences between treatments occurred in the surface 5-10 cm of the soil, although trends differed slightly depending on the element measured. Ammonium nitrate application substantially reduced the pH of the sandy soil, regardless of tillage treatment, but had no effect on the other soil types. Conventionally cultivated sandy and sandy clay loam soils also had a slightly higher pH than the direct drilled soils. The yield of plants was not directly related to the concentration in the soil of any elements measured.Accumulation of nutrients near the surface indicated that, if the surface soil is dry, then nutrients may be less available to plants established with direct drilling than with conventional cultivation. Further research is needed to establish whether present 'soil testing-P recommendation' relationships, based on conventional cultivation systems, are appropriate under direct drilling systems in Western Australia. Changes in pH with different tillage systems may have a bearing on fertilizer application strategies. Finally, the decline in organic C with conventional cropping indicates that the structure of soils in this experiment remains fragile even with direct drilling.

show abstract

Section: Processes Involved In the Effect Of Tillage On The Nutrient supporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

The influence of alternative tillage systems on the distribution of nutrients and organic-carbon in some common Western Australian wheatbelt soils

White¹

1990

Soil Res.

View full text Add to dashboard Cite

show abstract

“…Several studies have compared the microbial biomass between conventionally tilled and non-tilled plots in agricultural systems; most of these find that microbial biomass in plots with minimal tillage (and direct drilling of crops) is highest at the surface where plant residues remain while in conventionally tilled plots microbial biomass is more equitably distributed down the profile (Lynch & Panting, 1980a, 1982Carter & Rennie, 1982, 1984Carter, 19866, 1991 ;Doran 1987;Granatstein et al, 1987;Haynes & Knight, 1989;Saffigna et al, 1989;Haines & Uren, 1990;Dalal et a / . This is coincident with greater organic carbon and nitrogen at the surface of non-tilled systems (Fleige & Baumer, 1974;Doran, 1980). This is coincident with greater organic carbon and nitrogen at the surface of non-tilled systems (Fleige & Baumer, 1974;Doran, 1980).…”

Section: A Wardlementioning

confidence: 81%

A Comparative Assessment of Factors Which Influence Microbial Biomass Carbon and Nitrogen Levels in Soil

1992

View full text Add to dashboard Cite

“…9). This more pronounced aggregation increase does, however, not seem to lead to an [3,26,[30][31][32]35,38,59,65,77,79,109,111,113,114,139,164,172,173,177,194,Paustian and Elliott,unpublished,214,219,220,241] for (sub)tropical soils and from [2,11,22,42,50,[54][55][56]58,67,72,78,84,85,89,93,95,96,104,105,133,134,136,146,…”

Section: Mechanisms Of C Sequestration Under No-tillagementioning

confidence: 99%

Soil organic matter, biota and aggregation in temperate and tropical soils - Effects of no-tillage

Feller²,

et al. 2002

View full text Add to dashboard Cite

-The long-term stabilization of soil organic matter (SOM) in tropical and temperate regions is mediated by soil biota (e.g. fungi, bacteria, roots and earthworms), soil structure (e.g. aggregation) and their interactions. On average, soil C turnover was twice as fast in tropical compared with temperate regions, but no major differences were observed in SOM quality between the two regions. Probably due to the soil mineralogy dominated by 1:1 clay minerals and oxides in tropical regions, we found a higher aggregate stability, but a lower correlation between C contents and aggregate stability in tropical soils. In addition, a smaller amount of C associated with clay and silt particles was observed in tropical versus temperate soils. In both tropical and temperate soils, a general increase in C levels (≈ 325 ± 113 kg C·ha -1 ·yr -1 ) was observed under no-tillage compared with conventional tillage. On average, in temperate soils under no-tillage, compared with conventional tillage, CH 4 uptake (≈ 0.42 ± 0.10 kg C-CH 4 ·ha -1 ·yr -1 ) increased and N 2 O emissions increased (≈ 1.95 ± 0.45 kg N-N 2 O·ha -1 ·yr -1 ). These increased N 2 O emissions lead to a negative global warming potential when expressed on a CO 2 equivalent basis. La stabilisation à long terme de la matière organique du sol (MOS) dans les régions tempérées et intertropicales est sous la dépendance de l'activité biologique (champignons, bactéries, macrofaune et racines), de la structure du sol (agrégation) et de leurs interactions. En moyenne, si le turnover du carbone du sol (C) est environ deux fois plus rapide en régions intertropicales qu'en régions tempérées, peu de différences apparaissent toutefois quant à la qualité de la MOS sous ces climats différents. La stabilité de l'agrégation est plus élevée pour les sols des régions intertropicales, ceci étant probablement dû à leur minéralogie dominée par des argiles de type 1:1 associés à des oxihydroxides métalliques. Toutefois, pour les sols tropicaux, la corrélation entre teneur en C et stabilité de l'agrégation est plus faible et de moindres quantités de C sont associées avec les éléments fins (argile+limon). Aussi bien sous climats tempéré que tropical et subtropical, une augmentation générale des stocks de C du sol (≈ 325 ± 113 kg C·ha -1 ·an -1 ) est observée avec les pratiques de non labour. Pour les sols des régions tempérées, si une fixation de CH 4 (≈ 0.42 ± 0.10 kg C-CH 4 ·ha -1 ·an -1 ) est mesurée sous non-labour, parallèlement une émission de N 2 O est observée (≈ 1.95 ± 0.45 kg N-N 2 O·ha -1 ·an -1 ), conduisant finalement à un bilan négatif en terme de réchauffement global exprimé en équivalents de flux de C-CO 2 .carbone du sol / agrégation / émissions N 2 O / non-labour / régions tempérées et intertropicales INTRODUCTIONThe conservation of sufficient soil organic matter (SOM) levels is crucial for the biological, chemical and physical soil functioning in both temperate and tropical ecosystems. Appropriate levels of SOM ensure soil fertility and minimize agricultural impac...

show abstract

Effect of zero-tillage on organic carbon and total nitrogen content, and their distribution in different N-fractions in loessial soils

Cited by 54 publications

References 7 publications

The influence of alternative tillage systems on the distribution of nutrients and organic-carbon in some common Western Australian wheatbelt soils

The influence of alternative tillage systems on the distribution of nutrients and organic-carbon in some common Western Australian wheatbelt soils

A Comparative Assessment of Factors Which Influence Microbial Biomass Carbon and Nitrogen Levels in Soil

Soil organic matter, biota and aggregation in temperate and tropical soils - Effects of no-tillage

Contact Info

Product

Resources

About