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Evaluation of Amount of Nitrogen Fixed in Crotalaria spp.and Nitrogen Turnover to the Succeeding Wheat
Crotalaria juncea Crotalaria pallida, Green manure Incorporation 15N-dilution technique Nitrogen fixation
2009/7/21
The amounts of nitrogen fixed in Crotalaria juncea and C.pallida were evaluated by the 15N-isotope dilution technique and the difference method using Zea mays in pot experiments.The effects of incorpo...
Effect of Nitrogen Application and Leaf Removal on the Metabolism of Carbohydrate in Leaves and Stems of Rice Plants at Ripening Stage
Carbohydrate metabolism Leaf clipping treatment Neck internade of panicle Nitrogen top dressing
2009/7/21
Nitrogen topdressing and leaf removal were carried out on the rice variety Hitomebore immediately after heading and on Akitakomachi before heading, respectively.In the nitrogen topdressing(+N)plot, c...
A Specific Feature of Nitrogen Utilization Efficiency in Leaf Photosynthesis in Oryza glaberrima Steud
CO2 exchange rate Leaf nitrogen content Mesophyll conductance Nitrogen utilization efficiency
2009/7/15
Specific characteristics in the photosynthetic response to nitrogen application were compare between Oryza glaberrima Stend. strains introduced from West Africa and O. sativa L. strains including japo...
Effect of Composting with Bark Amendment on Nitrogen and Manganese Content in Water Clarifier Sludge
Nitrogen Manganese Water Clarifier Sludge
2009/7/13
Effect of pre-mixing bark amendment into water purification sludge before auto-composting on nitrogen and manganese content of the sludge and quality as material for potting media was investigated. Ea...
Nitrogen Uptake and Yielding Ability of Non-nodulating Soybean Genotype (En1282) under Organic Nitrogen Application (Dried Cattle Feces)(Agronomy)
Cattle feces Guinea grass Nitrate Nitrogen uptake
2009/7/10
The nitrogen uptake and yielding ability of non-nodulating soybean genotype (En1282) were investigated under field conditions. Dried cattle feces were applied at levels ranged from 192 to 960 kg N/ha ...
Change in the Amount of Amino Nitrogen in Crown Root of Sugar Beet (Beta vulgaris L.) Infected with Rhizoctonia solani
Amino nitrogen Rhizoctonia root rot resistance Sucrose Sugar beet Sugar quality
2009/7/8
The α-amino nitrogen (A-N) contained in the roots and crowns of sugar beet is one of the harmful non-sugars that deteriorate the quality of sugar beet roots. This research was conducted to investigate...
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
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 ...
Serial Change of Nitrogen Uptake after Topdressing for Rice Plants
Bleeding sap Lowland rice Nitrogen uptake Topdressing
2009/7/8
The change of nitrogen (N) uptake after topdressing was estimated from the N concentration in bleeding sap and bleeding rate of the sap in a lowland rice variety, Koshihikari, grown in a pot and in th...
Effects of Ammonium and Nitrate Nitrogen on the Development of the Rice Root System
Ammonium nitrogen Nitrate nitrogen Nitrogen fertilizer Rice plant Root activity Root system
2009/7/8
The root-system development of two rice varieties, Koshihikari and Kichinkurogome, fertilized with ammonium nitrogen was compared with that of these varieties fertilized with nitrate nitrogen. In both...
The changes of mineral nitrogen content in clay loam Cambisol in sustainable and organic agriculture
clay loam organic and sustainable farming system winter wheat straw green manure
2010/1/19
The changes of mineral nitrogen content in clay loam Cambisol in sustainable and organic agriculture.
基于PCA_SVR的油菜氮素光谱特征定量分析模型（Rape Nitrogen Content Spectral Character Models Based on PCA_SVR Method）
油菜 氮素 光谱分析
2009/5/22
研究了采用光谱分析技术对油菜植株全氮进行定量分析的方法。采用逐步回归法对氮素的光谱特征波长进行选择，为克服光谱变量间多重共线性的影响，对变量进行了主成分分析（PCA），为提高模型的拟合优度，应用支持向量机回归(SVR)建立油菜氮素的定量分析模型。对不同氮素水平的油菜冠层光谱数据进行分析，结果表明，406、460、556、634、662、675nm的光谱反射率与油菜含氮量呈极显著相关。植株全氮SVR...
PROTEIN FRACTIONAL COMPOSITION IN RIPENING GRAINS OF WINTER BARLEY CULTIVATED UNDER INTENSE FERTILIZATION WITH NITROGEN
winter barley nitrogen protein fractional composition nitrogen fertilization
2009/3/31
The object of the study was the grain of winter barley harvested at the beginning of its setting, milk maturity, dough maturity and full grain maturity stages at nitrogen fertilization doses of 0, 60,...
Yielding of FESTULOLIUM BRAUNII – TRIFOLIUM PRATENSE mixtures depending on the share of components and doses of nitrogen fertilization
festulolium red clover mixtures share of components nitrogen fertilization dry matter yield total protein yield
2009/3/31
The aim of the study was to compare the festulolium suitability in mixtures with meadow clover. The first factor was the share of red clover (40, 60 and 80%), the second factor was the level of nitrog...
EFFECT OF DIFFERENT RATES OF NITROGEN FERTILISERS ON CHEMICAL COMPOSITION OF STINGING NETTLE（Urtica dioica L）PLANTS HARVESTED AT THREE DEVELOPMENT STAGES PART II. CONTENTS OF MINERALS
stinging nettle chemical composition macroelements microelements
2009/3/30
The effect of various rates of nitrogen fertilisers on macro- (N-NO3, P, K, Mg, Ca) and microelement (Fe, Cu, Zn, Mn) contents in nettle plants harvested at three development stages was evaluated in 3...
EFFECT OF DIFFERENT RATES OF NITROGEN FERTILISERS ON CHEMICAL COMPOSITION OF STINGING NETTLE (Urtica dioica L.) PLANTS HARVESTED AT THREE DEVELOPMENT STAGES PART I. CONTENTS OF ORGANIC SUBSTANCES
stinging nettle chemical composition protein crude fibre
2009/3/30
A 3-year field study evaluated the effect of various rates of nitrogen fertilisers (0, 75, 150, 225 and 300 kg.ha-1 N) on total and true protein, as well as crude fiber contents in stinging nettle pla...