Results 31 to 40 of about 1,851,314 (299)

Poultry and cattle manure effects on sunflower performance, grain yield and selected soil properties in Limpopo Province, South Africa

open access: yesSouth African Journal of Science, 2019
The application of organic manures as alternatives to reduce the use of mineral fertilisers is considered a good agricultural practice for smallholder farmers.
Matome J. Mokgolo   +2 more
doaj   +1 more source

EFFECT OF SOME SOURCES OF ORGANIC FERTILIZERS ON GRAPE NUTRITION, YIELD AND FRUIT QUALITY OF FLAME SEEDLESS GRAPEVINES [PDF]

open access: yesJournal of Plant Production, 2007
This study was carried out during 2003, 2004 and 2005 seasons to study the effect of some sources of organic fertilizers on yield, fruit quality and the residues of the nitrate and nitrite in berry juice of Flame Seedless grapevines growing in a clay ...
A. Sakr, Sawsan Bondok, Enas Abbas,
doaj   +1 more source

EFFECT OF ORGANIC AMENDMENTS ON SOIL FERTILITY AND CABBAGE YIELD IN KARNALI PROVINCE [PDF]

open access: yesJournal CleanWAS
This study assessed the impact of various organic amendments on soil fertility and cabbage yield in Bheriganga Municipality, Surkhet, Karnali Province, Nepal.
Dhirendra Man Thapa   +8 more
doaj   +1 more source

Multiple benefits of manure: the key to maintenance of soil fertility and restoration of depleted sandy soils on African smallholder farms [PDF]

open access: yes, 2008
Manure is a key nutrient resource on smallholder farms in the tropics, especially on poorly buffered sandy soils, due to its multiple benefits for soil fertility. Farmers preferentially apply manure to fields closest to homesteads (homefields), which are
Nyamangara, J.   +3 more
core   +1 more source

Response of ‘criolla’ potato (Solanum tuberosum) cultivar Colombia to mineral organic fertilization

open access: yesRevista U.D.C.A Actualidad & Divulgación Científica, 2023
The ‘Criolla’ potato (Solanum tuberosum) phureja group cultivated in the inter-Andean valleys of the high tropics, is commonly fertilized only with mineral nutrients in conventional production, without the use of soil test and use of organic fertilizers.
Jorge Alberto Alvarado-Barrera   +3 more
doaj   +1 more source

Whole-rotation dry matter and nitrogen grain yields from the first course of an organic farming crop rotation experiment [PDF]

open access: yes, 2002
The possibilities for increasing total grain yield in organic cereal production through manipulation of crop rotation design were investigated in a field experiment on different soil types in Denmark from 1997 to 2000.
Olesen, Jørgen E.   +3 more
core   +2 more sources

THE EFFECT OF COMBINATIONS OF ORGANIC MATERIALS AND BIOFERTILISERS ON PRODUCTIVITY, GRAIN QUALITY, NUTRIENT UPTAKE AND ECONOMICS IN ORGANIC FARMING OF WHEAT [PDF]

open access: yes, 2012
Organic farming often has to deal with a scarcity of readily available nutrients, and this is in contrast to chemical farming which relies on soluble fertilisers.
Davari, Mohammadreza   +2 more
core   +1 more source

Effects of Pig Manure and Its Organic Fertilizer Application on Archaea and Methane Emission in Paddy Fields

open access: yesLand, 2022
Paddy fields account for 10% of global CH4 emissions, and the application of manure may increase CH4 emissions. In this study, high-throughput sequencing technology was used to investigate the effects of manure application on CH4 emissions and ...
Jianqiang Wu   +10 more
doaj   +1 more source

A Global Methane Observation System to Reduce Uncertainty for Anthropogenic and Natural Sources and Sinks for Detecting and Attributing Climate Feedbacks

open access: yesAdvanced Science, EarlyView.
Conceptual illustration of a Global Ecosystem Methane Observing System (GEM‐OS) integrating satellites, aircraft, atmospheric networks, and ecosystem measurements to quantify methane emissions from anthropogenic and natural sources. The multi‐scale observing framework improves source attribution, reduces uncertainty in regional methane budgets, and ...
P. Ciais   +32 more
wiley   +1 more source

Manure fertilizer-derived soil emerging pollutants compromises its fertility benefits for vegetable quality: At the scale of soil aggregates

open access: yesEcotoxicology and Environmental Safety
Substituting chemical fertilizers with organic manure in farmland management is a standard practice to alleviate soil degradation while improving soil quality and crop performance.
Rui Guo   +11 more
doaj   +1 more source

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