搜索结果: 1-14 共查到“农学 N-mineralization”相关记录14条 . 查询时间(0.314 秒)
Effects of pelleting temperature of phytase supplemented broiler feed on tibia mineralization, calcium and phosphorus content of serum and performance
pelleting temperature broiler phytase tibia mineralization growth
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2015/6/2
The present study was conducted to determine the effects of different pelleting temperature on tibia mineralization, calcium, phosphorus content of serum and growth performance of broilers fed phytase...
Moisture effect on carbon and nitrogen mineralization in topsoil of Changbai Mountain, Northeast China
soil moisture soil C and N mineralization incubation experiment Changbai Mountain Northeast China
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2015/3/27
Changbai Mountain Natural Reserve (1,985 km2 and 2,734 m a.s.l.) of Northeast China is a typical ecosystem representing the temperate biosphere. The vegetation is vertically divided into 4 dominant zo...
Seasonally dependent impacts of grazing on soil nitrogen mineralization and linkages to ecosystem functioning in Inner Mongolia grassland
Typical steppe Grazing intensity Season Soil inorganic N pools Net N mineralization Soil temperature and moisture BiomassN content Nitrogen use efficiency
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2015/2/4
Previous studies have suggested grazing may alter nitrogen (N) cycling of grasslands by accelerating or decelerating soil net N mineralization. The important mechanisms controlling these fluxes remain...
Mineralization of nitrogen from 15N labeled crop residues at varying temperature and clay content
Rice and wheat residues straw N-mineralization immobilization
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2011/2/22
A laboratory incubation experiment was carried out for 85 days to monitor the N mineralization during the decomposition of 15N labeled wheat and rice straws incorporated at 5 g kg-1 soil at varying te...
Carbon and nitrogen mineralization from selected organic resources available to smallholder farmers for soil fertility improvement in Zimbabwe
Cattle manure Mangifera indica miombo litter N mineralization and immobilization
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2010/9/10
A study was conducted to assess the N release dynamics of three organic resources widely used by smallholder farmers in sub-Saharan Africa to improve soil fertility. Addition of cattle manure, miombo ...
Characteristics of Nitrogen Mineralization in the Soil of Japanese Cedar (Cryptomeria japonica) and their Responses to Environmental Changes and Forest Management
forest management nitrification ratios of mineralized to total nitrogen soils of sugi stands
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2009/8/28
Knowledge of nitrogen mineralization in the soils of sugi (Cryptomeria japonica) stands is important for understanding the effects of forest management and environmental changes on nutrient cycling in...
Patterns of Soil Nitrogen Release in Paddy Fields of Warm Regions in Japan and Diagnosis of Fertilizer Application : II. Characteristics of soil nitrogen mineralization and nitrogen uptake patterns of rice plants in Fukuoka Prefecture
Amount of nitrogen uptake Fertilizer nitrogen Nitrogen mineralization Paddy soils Soil nitrogen
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2009/8/4
Topsoils collected from various regions in Fukuoka Prefecture were incubated and the amount of mineralized nitrogen was measured. The relationship between the mineralized nitrogen amount (N) and the ...
A Simplified Model for Estimating Nitrogen Mineralization in Paddy Soil
Drying effect Model Nitrogen mineralization Paddy soil Soil moisture before flooding Soil incubation Temperature
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2009/7/30
The estimation of available nitrogen in paddy soil is important in order to evaluate rice productivity and to improve fertilizer management. In this study, a simplified model is proposed for estimatin...
Effect of Surfeit Concentrations of Vitamin D3 on Performance,Bone Mineralization and Mineral Retention in Commercial Broiler Chicks
bone mineralization broiler chicks calcium growth phosphorus vitamin D3
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2009/7/29
An experiment was conducted to see the effect of higher concentrations of vitamin D3 in diets containing sub optimal levels of calcium (Ca) and non-phytate phosphorus (NPP) in broiler chickens. Maize...
Yearly and Field Variations of Paddy-Upland Rotational Fields in Nitrogen Mineralization and Nitrogen Absorption by Rice in Paddy-Upland Rotational Field—A Case Study in the Nara Basin for Four Years
Nitrogen Paddy rice Paddy-upland rotation Single crop Soil Nitrogen mineralization
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2009/7/8
Soil nitrogen mineralization and nitrogen absorptions by rice in paddy-upland rotational fields (rice-wheat-soybean) were studied in the Nara basin for four years (2000-2003) in comparison with those ...
Apparent Nitrogen Mineralization Rates of Several Green Manures Incorporated in Soil and the Application Effects on Growth of Komatsuna Plants
green manure hairy vetch sunflower crotalaria
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2010/12/2
Apparent nitrogen mineralization rates and the availability of released nitrogen to komatsuna plants succeeding green manures (GMs) incorporated to soil were investigated using a pot experiment to dev...
Effects of Some Plant Residues on Nitrogen Mineralization and Biological Activity in Soils
Plant Residues Nitrogen Mineralization Biological Activity Soils
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2009/1/14
The objective of this experiment was to determine the rate of decomposition and nitrogen mineralization of plant residues in soil under laboratory conditions. The experiment consisted of six treatment...
The Effects of Glyphosate Isopropylamine and Trifluralin on the Carbon Mineralization of Olive Tree Soils
Carbon mineralization glyphosate isopropylamine herbicide trifluralin
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2009/1/9
Glyphosate isopropylamine and trifluralin are herbicides widely used in Turkish agriculture. The recommended field dose (RFD) (480 g of active ingredient l-1 for both glyphosate and trifluralin) and 2...
Dietary Calcium and Non-phytin Phosphorus Interaction on Growth, Bone Mineralization and Mineral Retention in Broiler Starter Chicks
Broilers Growth Tibia Ash Tibia Breaking Strength Trace Mineral Retention
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2016/4/13
An experiment was conducted to study the requirement of calcium (Ca) and non-phytin phosphorus (NPP) in commercial broilers during starter phase. Seven hundred and twenty day-old Vencob male broiler c...