Results 21 to 30 of about 250,754 (309)

Characterization and Application of Magnetic Biochars from Corn Stalk by Pyrolysis and Hydrothermal Treatment

open access: yesBioResources, 2016
Two novel magnetic biochar composites (FeC-H and FeC-P) were synthesized using corn stalks and ferrous sulfate through hydrothermal method and traditional pyrolysis, respectively. The samples were characterized by Fourier transform infrared spectroscopy (
Yuting Tu   +6 more
doaj   +1 more source

Effects of Increased Acidification on Soil Available Cd and Rice

open access: yesGuangdong nongye kexue, 2023
【Objective】The acidification materials were used to intensify soil acidification and the impacts of changes in soil pH on Cd activity in soil and rice yield and quality after acidification of Cd contaminated soil were explored, with a view to providing ...
Siyi WEI   +5 more
doaj   +1 more source

Sensitivity Analysis of N2O and CH4 Emissions in a Winter Wheat–Rice Double Cropping System

open access: yesAgriculture
The sensitivity of model outputs to parameter variations is crucial for effective model calibration and application. This study assessed the sensitivity of N2O and CH4 emissions to varying weather conditions and fertilization practices in a winter wheat ...
Chuang Liu   +5 more
doaj   +1 more source

On-Farm Assessment of Biosolids Effects on Nitrogen and Phosphorus Accumulation in Soils

open access: yesJournal of Integrative Agriculture, 2012
A field plot experiment in a calcareous soil with wheat and maize rotation was carried out for 2 yr. The study aimed to investigate the effects of biosolids (sewage sludge or chicken manure) application on nitrogen (N) and phosphorus (P) accumulation in ...
Qiong LI   +4 more
doaj   +1 more source

Mycorrhizas and biomass crops: opportunities for future sustainable development [PDF]

open access: yes, 2009
Central to soil health and plant productivity in natural ecosystems are in situ soil microbial communities, of which mycorrhizal fungi are an integral component, regulating nutrient transfer between plants and the surrounding soil via extensive mycelial ...
Angela Hodge   +83 more
core   +1 more source

Soil quality, elemental stoichiometry and crop yield under partial substitution of chemical fertilizers with organic inputs in Vertisols: a six-site field study

open access: yesFrontiers in Plant Science
Partial substitution of chemical fertilizers with organic amendments represents a promising approach to sustainable soil management, yet its integrated effects on soil quality and elemental stoichiometry in Vertisols remain insufficiently understood ...
Fahui Jiang   +10 more
doaj   +1 more source

Jasmonic acid-mediated enhanced regulation of oxidative, glyoxalase defense system and reduced chromium uptake contributes to alleviation of chromium (VI) toxicity in choysum (Brassica parachinensis L.)

open access: yesEcotoxicology and Environmental Safety, 2021
The cultivation of leafy vegetables on metal contaminated soil embodies a serious threat to yield and quality. In the present study, the potential role of exogenous jasmonic acid (JA; 0, 5, 10, and 20 µM) on mitigating chromium toxicity (Cr; 0, 150, and ...
Muhammad Kamran   +11 more
doaj   +1 more source

Nutrient cycling on organic farms [PDF]

open access: yes, 2000
This paper examines the sustainability of nutrient cycling on organic farms. After a brief consideration of the principles of nutrient cycling in organic agriculture, data on soil P and K indices and farm nutrient budgets is used to assess the integrity ...
Fortune, Sharon   +3 more
core  

The role and implications of mammalian cellular circadian entrainment

open access: yesFEBS Letters, EarlyView.
At their most fundamental level, mammalian circadian rhythms occur inside every individual cell. To tell the correct time, cells must align (or ‘entrain’) their circadian rhythm to the external environment. In this review, we highlight how cells entrain to the major circadian cues of light, feeding and temperature, and the implications this has for our
Priya Crosby
wiley   +1 more source

Soil bacterial communities associated with multi-nutrient cycling under long-term warming in the alpine meadow

open access: yesFrontiers in Microbiology, 2023
IntroductionThe functions of terrestrial ecosystems are mainly maintained by bacteria, as a key component of microorganisms, which actively participate in the nutrient cycling of ecosystems.
Xiaorong Zhou   +13 more
doaj   +1 more source

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