Genotypic variation in response and dependency of <i>Cajanus cajan</i> (L.) Millsp., on arbuscular mycorrhizal fungi in a tropical Alfisol

Nagaraj, Kakanahalli; Vanishree, S.; Muthukumar, Thangavelu

doi:10.1080/11263504.2020.1810802

Cited by 4 publications

(1 citation statement)

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“…The cover crop acts as a protective element of the soils, which reduces evapotranspiration, minimizing crop irrigation [55,56], and not being necessary the breakages that destroy the soil mycorrhizae that allow the nitrogen entry into nodular systems [57][58][59][60][61]. Nitrogen fixation by mycorrhizal fungi is essential for sustainable cultivation to be productive [62][63][64]: for this, it is essential to know certain edaphic parameters, since within the Fabaceae family, there are species indifferent edaphic to pH, being able to be acidophilic exclusively or basophilic. Jakubus and Graczyk [65] studied the variability of edaphic microelements in fields with Lupinus albus L., oscillating the soil pH between 6.5-7.0, soils in which some of the associations that we study growth (TP, TT, PA and LR): favoring this type of cover crop, it would not be necessary to carry out organic and inorganic fertilizations [66].…”

Section: Discussionmentioning

confidence: 99%

Indicative Value of the Dominant Plant Species for a Rapid Evaluation of the Nutritional Value of Soils

et al. 2020

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A study was conducted on 14 grassland communities located in the south of the Iberian Peninsula and their edaphology, which is identified as specific plant associations. The edaphic study of each association allows a rapid evaluation of the nutrient content in the soil without the need for laboratory edaphic analysis. For each phytosociological relevé and soil, samplings were carried out. The field data were subjected to various statistical analysis—canonical correspondence analysis (CCA), Bayesian networks, and decision trees—to establish nutrient content. When the abundance value of the species is 9 in the Van der Maarel scale, there is an increase in the values of several soil parameters. In the case of Hordeum leporinum, when the Van der Maarel index is 9, the Kc (exchangeable potassium in cmol/kg) undergoes the greatest variation, to a value of up to 0.729 cmol/kg. The application of the decision tree to this species reveals that the soil attributes with the greatest influence in the classification are conductivity, %_si (silt texture), pH, and pF 15 atm (pressure at 15 atmospheres (water retention capacity) in %). Indeed, this interlaced edaphic and phytosociological study provides us with a high-value tool to obtain quick information on the content of nutrients in the soil.

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