搜索结果: 31-45 共查到“农学 phosphorus”相关记录164条 . 查询时间(0.052 秒)
Phosphorus fractions in arable and mountain soils and their humic acids
inorganic P organic P soil types humic acids 31P NMR
2015/1/30
Soil phosphorus (P) can exist in various inorganic (Pi) and organic forms (Po). Specific determination of Pi can be obtained by fractionate methods. However, the discrimination between the chemically ...
The Quantitative Estimate of Bioavailable Inorganic Phosphorus Content in Forest Soils by the Modification of the Anion-Exchange Resin Method
soil phosphorus forest soils available P determination
2015/1/28
The anion-exchange resin (AER) method for the estimation of bioavailable phosphorus was slightly optimised for soils with high contents of readily soluble organic compounds as well as for those having...
Effects of calcium and/or phosphorus sprays with different commercial preparations on quality and storability of Šampion apples
Š ampion apple calcium and phosphorus sprays
2015/1/21
Investigations on the effect of spraying trees with various calcium, phosphorus and calcium-phosphorus preparations were carried out in 1999–2001. Effects of sprays depended on the type of preparation...
Effect of nitrogen, phosphorus, potassium fertilizers and manure on growth and productivity of the peach cultivars Springtime and Redhaven
manure fruit set fruit weight
2015/1/21
The response of the peach cvs. Springtime and Redhaven to nitrogen, phosphorus, potassium fertilizers and manure is reported. The research was conducted during a period of 10 years. The following fert...
Retrofitting Suburbs: Prioritizing BMP Implementation to Reduce Phosphorus Runoff
Stormwater managment phosphorus loading BMP Charles River Watershed
2014/11/7
Increasing suburban development has impaired water resources in the Charles River Watershed. Growing populations in the suburban fringes of Boston, Massachusetts have had a significant impact on ecosy...
Retrofitting Suburbs: Prioritizing BMP Implementation to Reduce Phosphorus Runoff
Stormwater managment phosphorus loading BMP Charles River Watershed
2014/11/4
Increasing suburban development has impaired water resources in the Charles River Watershed. Growing populations in the suburban fringes of Boston, Massachusetts have had a significant impact on ecosy...
Estimation of national and regional phosphorus budgets for agriculture in Turkey
phosphorus surplus phosphorus use efficiency
2014/10/23
This paper presents national and regional phosphorus (P) budgets for agriculture in Turkey by using Eurostat/OECD common methodology. Regional P budgets presented in this paper are the first estimatio...
Retrofitting Suburbs: Prioritizing BMP Implementation to Reduce Phosphorus Runoff
phosphorus loading BMP Charles River Watershed
2014/10/20
Increasing suburban development has impaired water resources in the Charles River Watershed. Growing populations in the suburban fringes of Boston, Massachusetts have had a significant impact on ecosy...
Effects of Dietary Supplementation of Magnesium Hydrogen Phosphate (MgHPO4) as an Alternative Phosphorus Source on Growth and Feed Utilization of Juvenile Far Eastern Catfish (Silurus asotus)
Feed Efficiency Phosphorus Availability Alternative Phosphorus Plasma Phosphorus
2016/5/17
The present study was conducted to investigate a supplemental effect of magnesium hydrogen phosphate (MHP, MgHPO4) as an alternative phosphorus (P) source on growth and feed utilization of juvenile fa...
Comparison of Methodologies to Quantify Phytate Phosphorus in Diets Containing Phytase and Excreta from Broilers
Myo-inositol Phosphate Phosphorus Phytase Phytate Phytic Acid
2016/5/17
The use of a suitable methodology to quantify the phytate phosphorus (Pphy) content in both the feed and the excreta from broilers is required to enable accurate calculation of the catalytic efficienc...
Effects of Benzoic Acid and Dietary Calcium:Phosphorus Ratio on Performance and Mineral Metabolism of Weanling Pigs
Benzoic Acid Calcium Bone Characteristics Pig
2016/5/16
In a 2×2 factorial experiment the hypotheses tested were that the metabolic acid load caused by benzoic acid (BA) added to the feed affects bone mineralization of weanling pigs, and that a wide dietar...
Short Communication. Effect of phosphorus nutrition and grain position within maize cob on grain phosphorus accumulation
grain P grain position P contents P application
2014/10/24
Nutritional status of grains may vary due to external nutrient supply and their position within parent maize cob. Phosphorus (P) is the least mobile nutrient in the soil and therefore newly growing se...
Effect of High Phytase Inclusion Rates on Performance of Broilers Fed Diets Not Severely Limited in Available Phosphorus
Broiler Phytase Phytate Performance
2016/5/11
Phytate is not only an unavailable source of phosphorus (P) for broilers but it also acts as an anti-nutrient, reducing protein and mineral absorption, increasing endogenous losses and reducing broile...
Influence of phosphocompost application on phosphorus availability and uptake by maize grown in red soil of Ishigaki Island, Japan
Phosphocompost Rock Phosphate Available P Maize Red Soil
2013/2/28
Phospho compost application is important with respect to soil fertility and plant nutrition. Therefore, the objective was to evaluate the influence of phospho compost application on P availability and...
Storm phosphorus concentrations and fluxes in artificially drained landscapes of the US Midwest
Total Phosphorus Dissolved Reactive Phosphorus
2013/2/28
This study investigates phosphorus (P) concentrations and fluxes in tile drains, overland flow, and streamflow at a high temporal resolution during 7 spring storms in anagricultural watershed in India...