Influence of reduced tillage and fertilisation regime on soil quality indicators in an organic potato production system

Drakopoulos, Dimitrios; Scholberg, J.M.S.; Lantinga, E.A.

doi:10.1080/01448765.2017.1404495

Cited by 11 publications

(9 citation statements)

References 25 publications

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“…Also, this is connected to a sharp decrease in the estimated SOM mineralization rate (i.e. 127 vs. 192 kg N ha −1 for RT and ST, respectively) in control plots (Drakopoulos 2014). As a consequence, the efficiency of N use in terms of tuber productivity was 44.1 % higher for RT compared to ST.…”

Section: Discussionmentioning

confidence: 92%

“…In addition, use of RT resulted in higher N concentration in the 0-15-cm soil layer compared to ST, which may increase initial nutrient uptake (Drakopoulos 2014). Whereas, N concentration was higher in the 15-30-cm soil layer with use of ST due to soil inversion practices (Drakopoulos 2014). Consequently, it was evident that RT favoured crop emergence and initial crop growth.…”

Section: Discussionmentioning

confidence: 97%

“…Similarly, Holmstrom et al (2006) reported more shallow seed depth with use of reduced tillage compared to conventional tillage in a potato production system. In addition, use of RT resulted in higher N concentration in the 0-15-cm soil layer compared to ST, which may increase initial nutrient uptake (Drakopoulos 2014). Whereas, N concentration was higher in the 15-30-cm soil layer with use of ST due to soil inversion practices (Drakopoulos 2014).…”

Section: Discussionmentioning

confidence: 98%

“…Crop emergence was faster for RT despite the fact that ST resulted in slightly higher soil temperatures (≈1°C) in the upper 15-cm soil layer during the first 3 WAP (Drakopoulos 2014). It was observed that the use of mouldboard plough (i.e.…”

Section: Discussionmentioning

confidence: 99%

“…Therefore, RT-based systems may be more vulnerable to drought stress especially on sandy soils which have limited water storage capacity. Also, the higher soil bulk density that was found under RT possibly hampered root elongation in deeper soil layers (Drakopoulos 2014). Thus, potato plants in RT plots were more susceptible to water stress during initial tuber formation (i.e.…”

Section: Discussionmentioning

confidence: 99%

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Influence of reduced tillage and fertilization regime on crop performance and nitrogen utilization of organic potato

et al. 2015

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The majority of Dutch farmers perceive that mouldboard ploughing prior to potato planting is necessary, despite its negative impacts on inherent soil fertility and soil structure. An innovative agronomic practice in Dutch organic agriculture is the use of cut-and-carry fertilizers with which above-ground biomass of crops with high nitrogen content (e.g. grass/clover) is harvested and transferred to other fields as plant-based fertilizers. The objective of this study was to investigate the interactive effects of two tillage systems (reduced tillage (RT), standard tillage (ST)) and three organic fertilizer amendments (solid cattle manure (SCM), lucerne pellets (LP), grass/clover silage (GCS)) on crop performance and nitrogen utilization of organic potato. Use of RT decreased tuber yield by 13.4 % compared to ST due to lower average tuber size which was related to higher soil bulk density and increased vulnerability to drought stress during tuber bulking. On the other hand, use of RT positively affected nitrogen utilization and tuber quality in terms of specific gravity, dry matter and starch contents. However, the price premium associated with enhanced tuber quality may not offset the observed yield gap between RT and ST. Plant-based fertilizers enhanced nitrogen utilization in terms of apparent nitrogen recovery compared to animal-based. Although use of LP resulted in the highest yield for both tillage systems, its high price may be cost-inhibitive. An integrated approach taking into account N release patterns, environmental conditions, final yields, and production costs is needed in order to optimize resource use efficiency and overall profitability for farmers.

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Section: Discussionmentioning

confidence: 92%

Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Influence of reduced tillage and fertilization regime on crop performance and nitrogen utilization of organic potato

et al. 2015

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Organic nitrogen fertilization benefits selected soil fauna in global agroecosystems

2022

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Soil fauna plays an essential role in agricultural productivity as it mediates nutrient cycling and soil organic matter dynamics, alters soil physicochemical properties and supports plant growth. Nitrogen fertilization may have a positive or negative influence on soil fauna in a manner that alters ecosystem functioning, but these links have not yet been quantified. We present the results of a global meta-analysis of available literature data on the effects of N fertilization on taxonomic and ecological groups of soil fauna. Our results show that organic N fertilization increases the density of springtails, mites and earthworms, as well as the biomass of earthworms compared to when no fertilizer is applied. The meta-analysis for different nematode feeding groups and ecological categories of springtails and earthworms as well as different mite orders showed that organic fertilization has an overall positive effect on most groups as opposed to inorganic fertilization, which has neutral or negative effects on most groups, alone or in combination with organic fertilizers. Additional meta-analyses showed that the effects of N fertilization on soil fauna depend on the N application rate, on soil texture and on climatic conditions. Our findings suggest that the adoption of less intense farming practices such as organic fertilization combined with site-specific N fertilization regimes is a suitable strategy for protecting and enhancing functional communities of soil fauna.

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Tillage Practices in Potato (Solanum tuberosum L.) Production: A Review

Djaman

Koudahe

Koubodana³

et al. 2022

Am. J. Potato Res.

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Influence of reduced tillage and fertilisation regime on soil quality indicators in an organic potato production system

Cited by 11 publications

References 25 publications

Influence of reduced tillage and fertilization regime on crop performance and nitrogen utilization of organic potato

Influence of reduced tillage and fertilization regime on crop performance and nitrogen utilization of organic potato

Organic nitrogen fertilization benefits selected soil fauna in global agroecosystems

Tillage Practices in Potato (Solanum tuberosum L.) Production: A Review

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