نتایج جستجو برای: manures

تعداد نتایج: 1280  

2018
Somen Acharya Hitesh Kumar

A field experiment was conducted to investigate effects of four organic manure sources (vermicompost, poultry manure, sheep & goat manure and cattle FYM) on growth and yield attributing characters of garlic in greenhouse condition during extreme winter months (October to May) at Leh-Ladakh, India with three application rates of organic manures viz. 10, 20 and 30 tons ha-1. The results revealed ...

1999
F. A. Nicholson B. J. Chambers J. R. Williams R. J. Unwin

In this study, 183 livestock feeds and 85 animal manure samples were collected from commercial farms in England and Wales and analysed to determine their heavy metal (zinc, copper, nickel, lead, cadmium, arsenic, chromium and mercury) contents. Zinc and copper concentrations ranged from 150±2920 mg Zn/kg dm (dry matter) and 18±217 mg Cu/kg dm in pig feeds, depending on the age of the pigs. In p...

Journal: :Bioresource technology 2007
F J Salazar R C Saldana

This study aims to characterize salmonid manures and to determine their potential use in agricultural soils. Sampling was carried out below salmon and trout cages in farms located in lakes and in the sea in the South of Chile during 2002-2003. Manure was analyzed for macronutrients, micronutrients and heavy metals. Results showed a high variability between samples and differences between sea an...

Journal: :Environmental science & technology 2004
Benjamin L Turner April B Leytem

Pollution of water bodies by phosphorus in runoff from soil amended with animal manures is one of the greatest threats to water quality in developed countries. The environmental fate of manure phosphorus is determined in part by its chemical composition, yet extraction procedures to assess this are poorly developed and provide no structural information. We used solution 31P NMR spectroscopy to ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2010
Cheryl A Palm Sean M Smukler Clare C Sullivan Patrick K Mutuo Gerson I Nyadzi Markus G Walsh

Potential interactions between food production and climate mitigation are explored for two situations in sub-Saharan Africa, where deforestation and land degradation overlap with hunger and poverty. Three agriculture intensification scenarios for supplying nitrogen to increase crop production (mineral fertilizer, herbaceous legume cover crops--green manures--and agroforestry--legume improved tr...

2014
M. S. Chowdhury Z. Hasan K. Kabir M. Shah Jahan M. H. Kabir

A study was conducted at the Horticulture Farm, Sher-e-Bangla Agricultural University, Bangladesh during April to September, 2012 to determine the suitability of selected plant growth regulators and the proper use and effectiveness of selected organic manures and also their suitable combinations for successful okra production. The experiment consisted of two factors: factor A: growth regulators...

Journal: :Bioresource technology 2010
J O Azeez W Van Averbeke

Laboratory incubation was conducted for 120 days to study the fate of phosphorus in poultry (PM), cattle (CM) and goat manures (GM). Phosphorus mineralized from manure was dependent on total P, Al and Fe content. Manures improved P availability in the order: PM>CM>GM; however, the highest amount of P was fixed or immobilized between 10 and 70 days of incubating with CM and GM. Fixation and immo...

Journal: :Journal of nematology 2002
T L Widmer N A Mitkowski G S Abawi

Organic matter and its replenishment has become a major component of soil health management programs. Many of the soil's physical, chemical, and biological properties are a function of organic matter content and quality. Adding organic matter to soil influences diverse and important biological activities. The diversity and number of free-living and plant-parasitic nematodes are altered by rotat...

Journal: :International Journal of Enviornment and Climate Change 2023

A field experiment was conducted to study the effect of different organic manures and their levels on nutrient status soil microbial activity in rose at Hisar during 2020-21. The treatments comprised 3 types viz., farm yard manures, vermicompost poultry manure 4 control, kg/m2, 5 kg/m2 6 kg/m2. carried out split plot design with three replications. Observation carbon, dehydrogenase alkaline pho...

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