Results 101 to 110 of about 1,851,314 (299)

Carbon and nutrient losses during manure storage under traditional and improved practices in smallholder crop-livestock systems - evidence from Kenya [PDF]

open access: yes, 2009
In the absence of mineral fertiliser, animal manure may be the only nutrient resource available to smallholder farmers in Africa, and manure is often the main input of C to the soil when crop residues are removed from the fields.
Giller, Ken E.   +12 more
core   +1 more source

Long‐Term Analysis of Winter Wheat Yield and Climatic Influences in Ukraine

open access: yesInternational Journal of Climatology, EarlyView.
Long‐term field data (1968–2024) show that winter wheat yields in central Ukraine increased despite warming, but yield stability declined. Rising temperatures, more frequent soil moisture droughts and shortened winter calm increasingly limit productivity.
Tetiana Grabovska   +4 more
wiley   +1 more source

NITROGEN-ASSIMILATING ORGANISMS IN MANURE [PDF]

open access: yesJournal of Bacteriology, 1917
H L, Fulmer, E B, Fred
openaire   +2 more sources

Biochar and Hydrochar as Soil‐Based Carbon Sequestration Technologies: Implications for Greenhouse Gas Mitigation

open access: yesJournal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Biochar and hydrochar have emerged as promising carbon‐based amendments for enhancing soil carbon sequestration and mitigating greenhouse gas emissions. This review synthesizes and critically compares current knowledge on the production technologies, physicochemical properties, stabilization mechanisms, carbon persistence, and life‐cycle ...
João Marcos Rodrigues dos Santos
wiley   +1 more source

Effects of Organic Manures and Non-chemical Weed Control on Wheat: I-Plant Growth and Grain Yield

open access: yesJournal of Agricultural Sciences, 2012
Organic wheat yield is limited by climatic and agronomic factors including nutrient deficiency, weed competition and no suitable cultivars. The effects of organic manures and non-chemical weed control on grain yield of wheat were investigated during the ...
Ali Öztürk   +3 more
doaj   +1 more source

Edaphic Controls Override Climatic and Management Effects on Soil Organic Carbon in Southern African Agroecosystems

open access: yesJournal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background Understanding the relative importance of climatic, edaphic, and management controls on soil organic carbon (SOC) is essential for improving SOC prediction and land management in data‐scarce agroecosystems. Aim This study quantified SOC drivers across Southern African agroecosystems using 655 observations covering climatic variables,
Samuel Ayodele Mesele   +4 more
wiley   +1 more source

The influence of organic and conventional production on yield and quality of carrots [PDF]

open access: yes, 2013
Although numerous experiments have been carried out to compare nutrient and contaminant contents of organically and conventionally produced vegetables, further research is recommended (Rembialkovska 2007, Hoefkens et al. 2009).
Ingver, A., Bender, I.
core   +1 more source

Effet de l’engrais « CETEP » sur le rendement des cultures de haricot nain dans le Sud-Kivu

open access: yesVertigO, 2013
This chapter describes the results of a comparative trial of yields of bushbean (variety M’sole) cultivated on plots amended with organic manure “CETEP” and plots covered with conventional manure “NPK”.
Innocent Karhagomba Balagizi   +6 more
doaj   +1 more source

Nitrogen Fertilizer Application in Grass–Clover Elevated Nitrate Leaching in the Follow‐on Maize Crop

open access: yesJournal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background: Grass–clover and silage maize are key for dairy feed production and frequently occur within the same crop rotations. Fertilizer management in grass–clover may leave residual effects that influence both environmental outcomes and the performance of subsequent maize crops.
Henrik Thers   +3 more
wiley   +1 more source

ECONOMICS OF MAIZE PRODUCTION UNDER DIFFERENT COWPEA-BASED GREEN MANURE PRACTICES IN DERIVED SAVANNA ZONE OF NIGERIA [PDF]

open access: yes, 2012
There is a challenge in Nigeria of how to sustainably increase land productivity in the face of land pressures, un-availability and/or high cost of fertilizers, and reduced fallow periods.
Fabunmi, Thomas. O., Agbonlahor, Mure. U
core   +1 more source

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