Effect of mineral fertilization on the yield of maize in the climatic conditions from ARDS Turda

Sfechiş, Susana; Vidican, Roxana; Haş, Ioan; Ignea, Mircea; Deac, Valeria; Pop, Adrian

doi:10.15835/buasvmcn-agr:10677

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Corn is a globally important crop plant for human consumption [4], but also for animal feed; it depends on a high intake of mineral fertilizers [5]. Due to population growth, but also to the excessive use of agricultural land, it is necessary to apply efficient fertilizer techniques to increase crop productivity [6]. Conventional production is based on the use of chemical fertilizers [7], which can increase crop yields, but can also degrade soils, leading to certain losses at the agroecosystem level [8].…”

Section: Introductionmentioning

confidence: 99%

Divergence in Corn Mycorrhizal Colonization Patterns Due to Organic Treatment

Pop-Moldovan

Vârban

Corcoz

et al. 2021

Plants

Self Cite

View full text Add to dashboard Cite

Excessive application of chemical fertilizers and other agrochemicals can cause large imbalances in soils and agricultural ecosystems. In this context, mycorrhizae represent a viable solution to mitigate these negative effects. Arbuscular mycorrhizae are vital symbionts due to the multiple benefits they bring to both crops and the entire agroecosystem. The main purpose of this study was to observe whether differentiated fertilization has an influence on mycorrhizal colonization patterns in corn. Observed frequencies and intensities of colonization varied widely between phenophases and treatments, with 20% variation for frequency and 14% for intensity, which implies the constant development of both partners during the vegetation period. Arbuscules and vesicles were present in all development stages, but the overall mean was lower than 4% for arbuscules and 1% for vesicles in the analyzed root fragments. Intensity was highly correlated with frequency of colonization compared with arbuscules, where the coefficient was 0.54, and vesicles, with a coefficient of 0.16. Both PCA and NMDS provided good graphical solutions, with a high resolution due to explained variance and good spatial position of vectors. The use of mycorrhizal maps permits the full exploration of colonization patterns and fungal strategy, and the assessment of mycorrhizae-free areas. For the untreated variant, the strategy was oriented toward a longitudinal colonization followed by an irregular development of hyphae with multiple non-colonized areas. Treatment acts to stimulate the appearance of mycorrhizal spots, which further develop radially.

show abstract