[PDF] Top 20 Soil Nitrogen: research and extension
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Soil Nitrogen: research and extension
... An additional trial, an organic one, was established in 1991 on two sites with contrasting soils and climate in the NE of Scotland, one at Craibstone (Tulloch) and one near Elgin (Woodside). It is these trials that will ... See full document
35
Participatory research and extension in agriculture : Organisation of learning in participatory research and extension approaches
... first research question: What are the characteristics of the organisations implementing PRE? Participatory approaches to agricultural research, extension and development are ...agricultural ... See full document
77
RESEARCH ARTICLE Cover crops prove effective at increasing soil nitrogen for organic potato production
... dependable nitrogen sources to meet the needs of vegetable and grass crops, especially in fields with low soil ...increasing soil nitrogen for potato production at the Intermountain ... See full document
11
Research update article center for extension, research and study on chronic diseases (NEPEdc)
... the research described, were divided as follows: cereals, tubers, roots and breads; vegetables; fruits; milk and milk products; Meat and eggs; oilseeds; oil and fat; sweets and sugars; drinks; and ... See full document
12
Effects of Fertilizer Placement and Nitrogen Forms on Soil Nitrogen Diffusion and Migration of Red Yellow Soil in China
... of nitrogen (N) fertilizer have led to low N-use effi- ciencies (NUEs) and great N losses [1] [2], and have caused environmental problems, such as groundwater and surface water contamination, greenhouse gas ... See full document
12
Microorganisms and nitrogen turnover in the soil dried by ridged plowing
... spring soil drying up to its tilth, creates favorable conditions for biological events ...All-Russian Research Institute of Reclaime Lands that suggest an effect of autumn ridged plowing on the ... See full document
6
Nitrogen deposition and its contribution to nitrogen cycling and associated soil processes
... the nitrogen cycle through increased fixation by legumes, by energy and fertilizer production, and by the mobilization of N from long-term storage ...in research on N cycling in ecosystems since its ... See full document
11
Wet and Dry Season Effects on Select Soil Nutrient Contents of Upland Farms in North Bank Region of the Gambia
... in soil moisture as a result of erratic rainfall and also low in fertility due to continuous crop- ping, without much replenishment of soil nutrients by the ...of nitrogen (N), ...was research ... See full document
7
John Bremner 1922-2007
... many soil scientists of his era, worked on the basics in an emerging field that had to be understood before soil biochemistry could advance to the level is has now ...of nitrogen research ... See full document
27
Research Paper Effects of three kinds of improved substrates on soil nutrients and ginseng yield and quality in farmland
... of soil pH value, EC, organic matter content, total nitrogen, ammonium nitrogen, nitrate nitrogen, total phosphorus, available phosphorus, total potassium and available potassium, were Bao ... See full document
8
Effect of Tillage and Nitrogen on Wheat Production, Economics, and Soil Fertility in Rice Wheat Cropping System
... [2]. Research results showed that CT practices declined soil structure and stability over years due to depletion of SOM, which is already low in the soils of northwestern Pakistan affecting crop yield [3] ... See full document
9
Soil acidification of alfisols influenced by nitrate and ammonium nitrogen level in tea plantation
... the soil pH. With the increase application of chemical nitrogen fertilizer and the extension of application time, soil acidification was obviously ...garden soil acidification affected ... See full document
5
Effects of seasons on soil organic carbon and nitrogen pool dynamics in different land uses of Delhi NCR region of India
... environment. Soil C and N are often influenced by the variation of ...in soil C and N ...of soil organic carbon (SOC), soil total Nitrogen (TN), C/N ratio, oil EC and to provide basic ... See full document
10
The Woburn Organic Manuring Experiment II. Soil Analyses, 1964-72, With Special Reference to Changes in Carbon and Nitrogen
... II. Soil Analyses, 1964-72, With Special Reference to Changes in Carbon and ...Agricultural Research Council and Ministry of Agriculture Rothamsted Experimental ... See full document
20
INVESTIGATION OF THE NUTRITIONAL VALUES AND QUALITY OF SOIL IN THE FARM OF THE FLOATING REGION
... of soil quality are key roles for the production of effective and healthy food ...This research work involved the investigation of physico-chemical properties of soils collected from Yenangyaung Township in ... See full document
13
Effect of Orchard Management Practices on Peach Tree Growth, Yield, and Soil Ecology.
... on soil microbial biomass carbon (MBC), microbial biomass nitrogen (MBN), soil microbial respiration (SMR), net nitrogen mineralization (NNM), and endomycorrhizal fungal colonization of peach ... See full document
151
Effects of soil substrate quantity and nitrogen fertilizer on soil chemical properties and nutrients uptake by cocoa (Theobroma cacao Linn ) seedlings in Togo
... Improving the fertility of the soils under the cocoa trees has been subject to several studies (Akanbi et al., 2014; Koko, 2012; Ayeni, 2010; Ojeniyi, 2010; Koko Koudjega and Tossah 2009; Ayeni, 2008; Ayeni et ., 2008; ... See full document
6
Autumn nitrogen effects on perrenial ryegrass (Lolium perenne L.) and cocksfoot (Dactylis glomerata L.) pastures in dryland Canterbury.
... of nitrogen, with sheep urine depositing between 173 and 448 kg N/ha (Peri et ...autumn nitrogen may therefore interfere with the autumn re-establishment of subterranean ... See full document
106
Changes in soil quality after converting Pinus to Eucalyptus plantations in southern China
... in soil chemical and biological properties and SQIs among these ...the soil indi- cators obeyed standard normal ...and soil parent material, and were similar in planting history (Pinus plantation ... See full document
9
Balancing the use of maize residues for soil amendment and forage
... Experimental design. The study was based on a 10-year no-till (NT) and residue management experiment, which began in 2002 and the data used in this study were collected from 2010–2012. The area was cultivated with a crop ... See full document
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