Abstract
Soil structure has major influence on ecosystem sustainability and plant growth. Arbuscular mycorrhizal fungi (AMF) are an important functional group of soil microbiota, acting in the process of aggregation, especially in agroecosystems and related to the production and plant diversity. AMF are widely distributed in tropical agroecosystems and are extremely important for development of many agricultural crops. The present study evaluated the effect of inoculation with Glomus macrocarpum in different crop sequences on plant growth, microbial activity and aggregation of a Cerrado Oxisol. The study was conducted in a completely randomized design in a4 x 4 factorial scheme. Treatments consisted of four conditions of elimination and/or introduction of AMF (NS-NI: non-sterilized and non-inoculated; NS-I: non-sterilized and inoculated; S-NI: sterilized and non-inoculated; andS-I: sterilized and inoculated) and four crop sequences (Panicum maximum/Panicum maximum, Brachiaria ruziziensis/ soybean, sorghum/soybean and Stylosanthes spp./soybean). Inoculation favored growth of Stylosanthes spp. by increasing plant growth in up to 91% when inoculated. None of the grasses benefited from G. macrocarpum introduction. We observed that G. macrocarpum inoculation associated with indigenous AMF increased microbial biomass, phosphatase activity, mean geometric diameter and mean weighted diameter. The results indicated the beneficial effects of inoculation, which reflected in soil structure improvement and, hence, to agroecosystems sustainability.
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Claims 6
Claim · model-written summary
Glomus macrocarpum inoculation increased Stylosanthes growth by up to 91%.
- Taxon
- Stylosanthes spp.
Stylosanthese0 - Treatment
- inoculation with Glomus macrocarpume1
- Interactor
- Glomus macrocarpum
Glomus macrocarpume1symbiont - Outcome
- plant growthe0
- Direction
- increasinge0
- Value
- up to 91%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inoculation favored growth of Stylosanthes spp. by increasing plant growth in up to 91% when inoculated”
e1“inoculation with Glomus macrocarpum”
Claim · model-written summary
None of the grasses benefited from G. macrocarpum introduction.
- Taxon
- grassese0
- Treatment
- G. macrocarpum introductione0
- Interactor
- G. macrocarpumGlomus macrocarpume0symbiont
- Outcome
- benefitede0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“None of the grasses benefited from G. macrocarpum introduction”
e1“Panicum maximum/Panicum maximum, Brachiaria ruziziensis/ soybean, sorghum/soybean”
Claim · model-written summary
Inoculation with G. macrocarpum alongside indigenous AMF increased soil microbial biomass.
- Taxon
- Panicum maximum
.jpg?width=60)
Megathyrsus maximuse1 - Treatment
- G. macrocarpum inoculation associated with indigenous AMFe0
- Interactor
- G. macrocarpumGlomus macrocarpume0symbiont
- Outcome
- microbial biomasse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“G. macrocarpum inoculation associated with indigenous AMF increased microbial biomass, phosphatase activity, mean geometric diameter and mean weighted diameter”
e1“four crop sequences (Panicum maximum/Panicum maximum, Brachiaria ruziziensis/ soybean, sorghum/soybean and Stylosanthes spp./soybean)”
Claim · model-written summary
Inoculation with G. macrocarpum alongside indigenous AMF increased soil phosphatase activity.
- Taxon
- Panicum maximumMegathyrsus maximuse1
- Treatment
- G. macrocarpum inoculation associated with indigenous AMFe0
- Interactor
- G. macrocarpumGlomus macrocarpume0symbiont
- Outcome
- phosphatase activitye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“G. macrocarpum inoculation associated with indigenous AMF increased microbial biomass, phosphatase activity, mean geometric diameter and mean weighted diameter”
e1“four crop sequences (Panicum maximum/Panicum maximum, Brachiaria ruziziensis/ soybean, sorghum/soybean and Stylosanthes spp./soybean)”
Claim · model-written summary
Inoculation with G. macrocarpum alongside indigenous AMF increased mean geometric soil-aggregate diameter.
- Taxon
- Panicum maximumMegathyrsus maximuse1
- Treatment
- G. macrocarpum inoculation associated with indigenous AMFe0
- Interactor
- G. macrocarpumGlomus macrocarpume0symbiont
- Outcome
- mean geometric diametere0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“G. macrocarpum inoculation associated with indigenous AMF increased microbial biomass, phosphatase activity, mean geometric diameter and mean weighted diameter”
e1“four crop sequences (Panicum maximum/Panicum maximum, Brachiaria ruziziensis/ soybean, sorghum/soybean and Stylosanthes spp./soybean)”
Claim · model-written summary
Inoculation with G. macrocarpum alongside indigenous AMF increased mean weighted soil-aggregate diameter.
- Taxon
- Panicum maximumMegathyrsus maximuse1
- Treatment
- G. macrocarpum inoculation associated with indigenous AMFe0
- Interactor
- G. macrocarpumGlomus macrocarpume0symbiont
- Outcome
- mean weighted diametere0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“G. macrocarpum inoculation associated with indigenous AMF increased microbial biomass, phosphatase activity, mean geometric diameter and mean weighted diameter”
e1“four crop sequences (Panicum maximum/Panicum maximum, Brachiaria ruziziensis/ soybean, sorghum/soybean and Stylosanthes spp./soybean)”
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See all 6 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.