Effects of long-term tillage, terminating no-till and cropping system on organic C and N, and available nutrients in a Gleysolic soil in Québec, Canada

Malhi, S. S.; Légère, Anne; Vanasse, Anne; Parent, Gaétan

doi:10.1017/s0021859618000448

Cited by 21 publications

(10 citation statements)

References 63 publications

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“…One of the key requirements for the success of no-till systems is the amount of biomass on the soil surface. Soil OM improves soil properties and is a source of both plant nutrients and energy for microorganisms (Malhi et al ., 2018). The quantity and quality of soil organic C and N are affected by soil and crop management practices (Liu et al ., 2006).…”

Section: Discussionmentioning

confidence: 99%

Brachiaria and Panicum maximum in an integrated crop–livestock system and a second-crop maize system in succession with soybean

et al. 2020

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Owing to its contribution to the maintenance of carbon stocks, soil nitrogen and nutrient cycling for subsequent crops, the integrated systems become increasingly important for agricultural conservation. Thus, the objective of this study was to evaluate the biomass production of and total nutrient in Brachiaria spp. and Panicum maximum forage grasses used as mulch and soybean yields in an integrated crop–livestock system and second-crop maize succession system. The treatments consisted of the following cropping systems: Xaraes palisadegrass intercropped with soybean, Congo grass intercropped with soybean, Mombaça guinea grass intercropped with soybean, Tamani guinea grass intercropped with soybean and a soybean/maize succession system. The forage grasses were established during the soybean R6–R7 stage. Compared with Congo grass, Xaraes palisadegrass, Mombaça guinea grass and Tamani guinea grass produced more biomass and equivalent amounts of fertilizer returned to the soil and resulted in greater nutrient cycling, indicating the benefits of these grasses for use as mulch in integrated production systems. Maize had a greater C/N ratio, but the forage grasses also exhibited high potential by protecting the soil until the end of the soybean development cycle. The use of an integrated crop–livestock system combined with a forage cropping system provided greater soil nutrient cycling than the maize cropping system did, which resulted in increased soybean yields, thus contributing to the sustainability of agricultural systems.

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Section: Discussionmentioning

confidence: 99%

Brachiaria and Panicum maximum in an integrated crop–livestock system and a second-crop maize system in succession with soybean

et al. 2020

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“…The cover crops cultivation promotes the increase of microbial P and labile P forms, in addition, the slow and gradual residue mineralization in the no-till system causes the release and redistribution of organic P forms, more stable and less susceptible to adsorption reactions (Malhi et al, 2018). Different from T system, the P decomposition rates (k) and times of 50 and 95% nutrients release were significantly different between PCs and NV (P<0.01) in NT.…”

Section: Nutrients Released From Plant Residuesmentioning

confidence: 94%

Nutrient cycling in multifunctional agroecosystems with the use of plant cocktail as cover crop and green manure in the semi-arid

Filho¹,

Filho²,

Salviano³

et al. 2019

Afr. J. Agric. Res.

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Plant cocktails used as cover crop present a significant multifunctional resource compared to monoculture, which may increase functional diversity within crop rotation and is particularly effective for designing mixtures with characteristics that increase the multifunctionality and sustainability of the agroecosystem. The objective was to evaluate sustainable agroecosystems models that improve the efficiency of nutrient cycling for crops. The treatments were arranged in four blocks in a split-plot design with two soil management (tillage and no-till) systems and three cropping systems (2 plant cocktails [PCs] and 1 natural vegetation [NV]). C/N ratio, lignin content, dry biomass (DB) production and decomposition, nutrients accumulation and mineralization by PCs and NV were evaluated. Decomposition and release of nutrients were monitored by the litterbag-method. PCs had a DB production twice higher than NV, essential for the adoption of no-tillage systems. The order of nutrient release was K> N> Ca> P> Mg. PCs as cover crops and green manure, with or without predominance of legumes and use of a no-tillage system, could be a technological strategy in agroecosystems for nutrients cycling in semi-arid regions.

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“…However, this trend has not been mathematically confirmed. Malhi et al 49 . obtained similar results in their studies, explaining that the lower content of nitrate‐nitrogen after moldboard ploughing compared to the No‐till method is a result of its more intensive movement down the soil profile and leaching into the lower soil layers.…”

Section: Resultsmentioning

confidence: 60%

Nitrogen state of Haplic Chernozem of the European part of Southern Russia in the implementation of resource‐saving technologies

et al. 2020

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BACKGROUND The prolonged use of traditional moldboard ploughing often results in soil degradation and, ultimately, has an impact on national food security. Therefore, the implementation of resource‐saving technologies (minimal and No‐till) is a promising approach in the development of agriculture, especially in drought regions. The present study reports the results of long‐term research on the effect of various tillage methods (moldboard ploughing, minimal tillage and No‐till technique) on the nitrogen content of Haplic Chernozem of the European part of Southern Russia. The revealed regularities can be used as a theoretical basis for the effective use of resource‐saving technologies, including No‐till, in the zone of insufficient moisture. RESULTS Long‐term (59 years) cultivation of winter wheat using traditional moldboard ploughing has decreased the soil organic material (SOM) by 35% and total nitrogen by 32% in the soil. Minimization of tillage, in contrast, recovers the nitrogen potential of the soil in winter wheat agrocenoses. There is a statistically confirmed dependence of the content of SOM and total nitrogen on the tillage method of the upper soil horizon, with no significant effect of the tillage methods on intensity ammonification and nitrification. However, the content of nitrate‐nitrogen during resource‐saving tillage methods (22.8–24.4 mg kg−1) was higher than that after ploughing (20.3 mg kg−1) during all the years of the study, indicating the higher content of easily mineralizable nitrogen‐containing compounds in the soil after minimal tillage. CONCLUSION The use of resource‐saving tillage technologies under conditions of insufficient moisture stabilizes the nitrogen content in soil and can improve nitrogen nutrition of plants. © 2020 Society of Chemical Industry

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Effects of long-term tillage, terminating no-till and cropping system on organic C and N, and available nutrients in a Gleysolic soil in Québec, Canada

Cited by 21 publications

References 63 publications

Brachiaria and Panicum maximum in an integrated crop–livestock system and a second-crop maize system in succession with soybean

Brachiaria and Panicum maximum in an integrated crop–livestock system and a second-crop maize system in succession with soybean

Nutrient cycling in multifunctional agroecosystems with the use of plant cocktail as cover crop and green manure in the semi-arid

Nitrogen state of Haplic Chernozem of the European part of Southern Russia in the implementation of resource‐saving technologies

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