搜索结果: 1-15 共查到“土壤学 N fertilizer”相关记录57条 . 查询时间(0.105 秒)
Using the DNDC model to compare soil organic carbon dynamics under different crop rotation and fertilizer strategies
crop yield fertilization croplands
2014/10/23
Soil organic carbon (SOC) plays a vital role in determining soil fertility, water holding capacity and susceptibility to land degradation. On the Chinese Loess Plateau, a large amount of crop residues...
Relative effects of anaerobically-digested and conventional liquid swine manure, and N fertilizer on crop yield and greenhouse gas emissions
Ammonia Volatilization Anaerobic Digestion
2013/3/4
Anaerobic digestion is a promising technology that could provide an option for managing animal waste with reduced greenhouse gas emissions. A three-year (2006-2008) field experiment was conducted at S...
Cropping frequency and N fertilizer effects on soil water distribution from spring to fall in the semiarid Canadian prairies
Fallow Frequency Water Use Plant Biomass Spring Wheat Soil Water
2013/3/4
In the semiarid Canadian prairies, water is the most limiting and nitrogen (N) the second most limiting factor influencing spring wheat (Triticum aestivum L.) production. The efficiency of water-and n...
Effect of different fertilization on spring cabbage (Brassica oleracea L. var. capitata) production and fertilizer use efficiencies
Spring Cabbage Fertilizer Use Efficiency
2013/3/4
Just after transplanting, the vegetable has difficulty in nutrients uptake. To explore the effect of different fertilization on spring cabbage (Brassica oleracea L. var. capitata) production and ferti...
Discovery in legumes could reduce fertilizer use, aid environment, say Stanford researchers（图）
legumes fertilizer use aid environment
2010/3/4
Nitrogen is vital for all plant life, but increasingly the planet is paying a heavy price for the escalating use of nitrogen fertilizer.Excess nitrogen from fertilizer runoff into rivers and lakes cau...
EFFECT OF NPK FERTILIZER ON THE GROWTH OF SAPROPHYTIC FUNGI IN ALLUVIAL SOIL
saprophytic fungi mineral fertilizers plum culture
2010/12/8
The influence of different NPK fertilizer rates on the developement of the saprophytic fungi of the alluvial soil planted with plum culture has been studied over the three-year period (2003 – 2005). T...
Effect of Dried-grass Fermented Fertilizer on Growth and Yield of Chinese Kale (Brassicaoleracea) Production
dried-grass fermented fertilizer dechlorinated water confidence level Surin province
2010/11/15
In terms of statistical data, average Chinese kale total weight with leaves and number
of leaves per plant obtained from dried-grass fermented fertilizer were significant at a confidence level of 95 ...
Plant-Soil Relationships of Bromus tectorum L.: Interactions among Labile Carbon Additions, Soil Invasion Status, and Fertilizer
Plant-Soil Relationships Labile Carbon Additions Soil Invasion Status Fertilizer
2009/12/2
Invasion of western North America by the annual exotic grass Bromus tectorum L. (cheatgrass) has been an ecological disaster. High soil bioavailability of nitrogen is a contributing factor in the inva...
EFFECT OF DIFFERENT METHODS OF FERTILIZER APPLICATION TO WHEAT AFTER GERMINATION UNDER RAINFED CONDITIONS
Barani Agricultural Research Institute,Chakwal
2009/9/30
Different methods of application of N and P fertilizer after rainfall were compared with no
fertilizer application at the time of wheat sowing (cv. GA-2002). The data regarding flag
leaf area, numbe...
Effect of Nitrogen And Phosphorus Fertilizer on N/P Uptake And Yield Performance of Groundnut (Arachis Hypogaea L.)
Arachis hypogaea phosphorus fertilizers nitrogen fertilizers agronomic characters Bangladesh
2009/9/29
An experiment was conducted on a sandy loam soil at Bangladesh Agricultural
Research Institute (BARI), Joydebpur, Bangladesh, Gazipur during early summer (mid
January - June) season of 2000 and 2001...
Estimation of Potential Supply of Livestock Waste Compost to Replace Chemical Fertilizer Use in Japan Based on 2000 Census of Agriculture
animal industry environment nitrogen phosphorus potassium
2009/9/9
Legislation represented by the Livestock Waste Disposal Law and Compost Quality Control Law wereenacted in order to reduce the excessive use of chemical fertilizer and disposal of untreated livestock ...
Estimation of Potential Supply of Livestock Waste Compost to Replace Chemical Fertilizer Use in Japan Based on 2000 Census of Agriculture
animal industry environment nitrogen phosphorus potassium
2009/9/9
Legislation represented by the Livestock Waste Disposal Law and Compost Quality Control Law wereenacted in order to reduce the excessive use of chemical fertilizer and disposal of untreated livestock ...
Supplemental Nitrogen Fertilizer to Soybeans:IV. Influences of soil conditions on the yield response to supplemental nitrogen
Glycine max Nitrogen fertilizer Nitrogen fixation Soil Soybean
2009/8/6
The influence of soil conditions on increase of nitrogen assimilation and yield as a result of supplemental nitrogen fertilizer application at flowering were examined with soybean (Glycine max L. Merr...
Supplemental Nitrogen Fertilizer to Soybeans:III. Effects on nitrogen fixation
Acetylene reduction Nitrogen Nitrogen fixation Soybean Top-dressing
2009/8/6
Effects of (NH4)2SO4 top-dressing at the flowering stage to soybeans were investigated in view of its nitrogen fixation and assimilation. Possibility of estimating nitrogen fixation by time course mea...
The Change of Cultivation and Utilization of Chinese Milk Vetch (Astragalus sinicus L.), and the Effect of Fertilizer and Soil Fertility on Paddy Field as a Green Manure
Cultivation Utilization Chinese Milk Vetch Fertilizer Soil Fertility Paddy Field
2009/8/6
The Change of Cultivation and Utilization of Chinese Milk Vetch (Astragalus sinicus L.), and the Effect of Fertilizer and Soil Fertility on Paddy Field as a Green Manure.