Results 11 to 20 of about 1,527,997 (304)

South American tomato moth (Tuta absoluta) and tomato protection measures in the conditions of the Northern Steppe of Ukraine

open access: yesМеліорація і водне господарство, 2021
Cultivation of nightshade family crops (Solanaceae) requires sufficient amount of moisture and heat. In Ukraine, the most available conditions for that are in the southern regions: Kherson, Mykolaiv, Odesa, Zaporizhia and AR of Crimea, where the average ...
F. S. Melnychuk   +4 more
doaj   +1 more source

Contamination [PDF]

open access: yes, 2011
Soil contamination occurs when substances are added to soil, resulting in increases in concentrations above background or reference levels. Pollution may follow from contamination when contaminants are present in amounts that are detrimental to soil ...
Bacon, J.   +7 more
core   +1 more source

Mitigating N2O Peaks in Rice–Wheat Rotations: Targeting Wheat-Season Windows with Straw Return

open access: yesAgronomy
Nitrous oxide (N2O) emissions in cereal-based rotations often show short-lived peaks after fertilization, but their contribution to annual budgets and their responsiveness to straw management remain poorly quantified.
Xiangyu Xu   +10 more
doaj   +1 more source

Evaluation of nutrient stoichiometric relationships among ecosystem compartments of a subtropical treatment wetland. Do we have “Redfield wetlands”?

open access: yesEcological Processes, 2019
Background Evaluation of carbon (C), nitrogen (N), and phosphorus (P) ratios in aquatic and terrestrial ecosystems can advance our understanding of biological processes, nutrient cycling, and the fate of organic matter (OM) in these ecosystems ...
Paul Julian   +7 more
doaj   +1 more source

Reduced tillage, but not organic matter input, increased nematode diversity and food web stability in European long‐term field experiments [PDF]

open access: yes, 2019
Soil nematode communities and food web indices can inform about the complexity, nutrient flows and decomposition pathways of soil food webs, reflecting soil quality.
De Caceres M.   +22 more
core   +1 more source

Enhanced soil quality with reduced tillage and solid manures in organic farming - a synthesis of 15 years [PDF]

open access: yes, 2020
Demands upon the sustainability of farming are increasing in step with climate change and diversity loss. Organic farming offers a viable approach. To further improve organic management, three strategies with potential to enhance soil quality are being ...
Berner, Alfred   +5 more
core   +1 more source

Changes on microbial C and enzyme activities in soil with amendment of composted tannery sludge after 9 years

open access: yesInternational Journal of Recycling of Organic Waste in Agriculture
Purpose The consecutive amendment of composted tannery sludge (CTS) could promote changes in the status of soil microorganisms. Thus, this study evaluated the changes on microbial C and enzyme activities in soil after 9 years of CTS amendment.
Antonio Victor Cavalcante Rocha Silva   +6 more
doaj   +1 more source

Genome-Wide Association Study Reveals Complex Genetic Architecture of Cadmium and Mercury Accumulation and Tolerance Traits in Medicago truncatula

open access: yesFrontiers in Plant Science, 2022
Heavy metals are an increasing problem due to contamination from human sources that and can enter the food chain by being taken up by plants. Understanding the genetic basis of accumulation and tolerance in plants is important for reducing the uptake of ...
Timothy Paape   +5 more
doaj   +1 more source

Special Issue “Natural Plant Substances—Structural and Application Aspects: A Theme Issue in Honor of Professor Wieslaw Oleszek”

open access: yesMolecules, 2022
Dear Colleagues, [...]
Jerzy Żuchowski   +4 more
doaj   +1 more source

The Crop Phosphorus Uptake, Use Efficiency, and Budget under Long-Term Manure and Fertilizer Application in a Rice–Wheat Planting System

open access: yesAgriculture
Little is known about the effect of the long-term application of organic and inorganic fertilizers on P-use efficiency, P budget, and the residual effect of P fertilizer. To clarify the effect of different fertilization on soil P balance in a rice (Oryza
Donghai Liu   +6 more
doaj   +1 more source

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