Results 71 to 80 of about 218,824 (309)

Modelling risk in farm planning [PDF]

open access: yes
In this article a mathematical model is presented to assist management decisions on an integrated crop and livestock farm. Risk is incorporated into the model as the negative deviation of the actual gross income from the expected value of an activity's ...
Ghebretsadik, A.H., Visagie, S.E.
core   +1 more source

Effects of the second crop on maize yield and yield components in organic agriculture [PDF]

open access: yes, 2008
The second crop use in organic agriculture is a known method of maintaining the soil tilth, soil protection against environmental deterioration, soil nutrients conservation and even the weed control.
Birkás, Márta   +6 more
core  

Balancing Electrons to Break the Activity‐Selectivity Trade‐Off in H2O2 Electrosynthesis

open access: yesAdvanced Functional Materials, EarlyView.
Carrier‐concentration balancing in CuS is achieved by coupling cobalt dopants with cobalt vacancies, converting CuS from p‐ to n‐type to accelerate 2e− ORR while withdrawing excess carriers to optimize *OOH binding for H2O2 desorption. The catalyst reaches 8.14 mol g−1 h−1 with >84% selectivity in 1.0 M KOH and drives robust electro‐Fenton dye ...
Hangning Liu   +11 more
wiley   +1 more source

Effects of Different Phosphorus Application Rates in Wheat Season on Crop Yield and Phosphorus Efficiency in Wheat-Maize and Wheat-Soybean Rotation Systems

open access: yesShuitu Baochi Xuebao
[Objective] In order to study the effects of different phosphorus application rates in wheat season on crop yield and phosphorus fertilizer efficiency in different crop rotation systems in Guanzhong area of Shaanxi Province, the appropriate phosphorus ...
KOU Xinyue, SANG Lizhi, SHEN Yufang
doaj   +1 more source

Feasibility of different crop rotations for cultivation in salt affected soils

open access: yesActa Agriculturae Slovenica, 2019
Crop rotation can be used as an effective technique for managing salt-affected soils, however selection of suitable crop rotation at farmer field is very intricate decision which depends on expected net revenue, available resources and preserving the ...
Khalil AHMED   +6 more
doaj   +1 more source

Constraints to the sustainability of a stockless arable rotation [PDF]

open access: yes, 2006
The sustainability of an organic stockless arable rotation on a fertile soil in eastern England was assessed from 1990 to 2005. The good water and nutrient holding characteristics of the silty clay loam soil were well suited to a stockless organic ...
Cormack, W F
core  

Coagulative Granular Hydrogels with an Enzyme Catalyzed Fibrin Network for Endogenous Tissue Regeneration

open access: yesAdvanced Healthcare Materials, EarlyView.
Coagulative granular hydrogels are composed of packed thrombin‐functionalized microgels that catalyze the conversion of fibrinogen into a secondary fibrin network, filling the interstitial voids. This bio‐inspired approach stabilizes the biomaterial to match the robustness of bulk hydrogels without compromising injectability, mimicking the initial ...
Zhipeng Deng   +16 more
wiley   +1 more source

Accounting for agronomic rotations in crop production: A theoretical investigation and an empirical modeling framework [PDF]

open access: yes
As far as crop acreage choices are concerned, a consensus seems to exist among agricultural scientists and extension agents: crop rotation effects and the related constraints are major determinants of farmers’ crop choices.
Carpentier, Alain   +2 more
core   +1 more source

Targeting Post‐Irradiation Thyroid Dysfunction: Electrospun Scaffolds As A Dual‐Action Approach for Antioxidant and Immune Modulation

open access: yesAdvanced Healthcare Materials, EarlyView.
Radiation‐induced hypothyroidism follows head and neck radiotherapy due to oxidative stress and inflammation. Electrospun polycaprolactone scaffolds containing adenosine have potential to modulate thyroid repair. Scaffolds enhance thyrocyte proliferation, antioxidant enzymes glutathione peroxidase and catalase, reduce senescence and apoptosis markers ...
Maria Heim   +5 more
wiley   +1 more source

Soil microbial community composition by crop type under rotation diversification

open access: yesBMC Microbiology
Background Crop rotation is an important agricultural practice that often affects the metabolic processes of soil microorganisms through the composition and combination of crops, thereby altering nutrient cycling and supply to the soil.
Donglin Zong   +5 more
doaj   +1 more source

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