搜索结果: 1-10 共查到“农业基础学科 phosphorus”相关记录10条 . 查询时间(0.046 秒)
Storm phosphorus concentrations and fluxes in artificially drained landscapes of the US Midwest
Total Phosphorus Dissolved Reactive Phosphorus
2012/6/22
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...
Evaluation of phosphorus and nitrogen balances as an indicator for the impact of agriculture on environment: A comparison of a case study from Poland and Mississippi US
Nitrogen Phosphorus Nutrient Efficiency Nutrient Availability Nutrient Budget
2012/4/6
The objective of this research was to quantify the changes of nitrogen (N) and phosphorus (P) balances in Poland and Mississippi (MS), USA. Nutrient balances were calculated as difference between inpu...
Farmer evaluation of phosphorus fertilizer application to annual legumes in Chisepo, Central Malawi
Grain legume farmer participation soil fertility phosphorus monitoring and evaluation
2010/3/15
Building from the perception that farmers have an intimate knowledge of their local environment, production problems, crop priorities and criteria for evaluation, an on-farm experiment was conducted w...
Application of Bradyrhizobium japonicum and Phosphorus Fertilization Improved Growth, Yield and Nodulation of Soybean in the Sub-humid Hilly Region of Azad Jammu and Kashmir,Pakistan
M.Kaleem Abbasi Afshan Majeed Andleeb Sadiq Sumyya Razaq Khan
2009/7/23
Two separate experiments (pot and field) were conducted to examine the response of soybean to Bradyrhizobium japonicum and phosphorus (P) fertilization. Different treatments were i) Rhizobium strains ...
SEQUENTIAL ANALYSIS OF PHOSPHORUS COMPOUNDS IN ORGANIC WASTE MATERIALS
sewage sludge broilers droppings phosphorus fractions
2009/3/31
The research involved the use of a variety of organic waste materials, fresh and composted, including: sludge from two sewage treatment plants, from Siedlce and Łuków, and broiler droppings. A to...
Effect of Salinity on Phosphorus Induced Zinc Deficency in Pepper（Capsicum annuumL）Plants
Salinity Phosphorus Induced Zinc Deficency Pepper（Capsicum annuumL）Plants
2009/1/15
The combined effects of NaCl salinity and increasing rates of P on the Zn nutrition of pepper were studied. The applied P increased fruit yield in the absence of salinity, but decreased it in the pres...
Research on the Effects of Different Phosphorus Doses on Root, Nodule and Plant Growth in Some Vetch Species
Phosphorus common vetch Hungarian vetch hairy vetch nodule
2009/1/14
This research was conducted to determine the effects of different phosphorus doses (0, 4, 8 and 12 kg P2O5/da) on root, above-ground biomass and nodule development of vetch species (Vicia villosa Roth...
Phosphorus release from peat soils under flooded conditionsof the ｊczy駍ko-W硂dawskie Lake District
high-moor peat low-moor pet phosphorus release
2008/11/14
The aim of this paper was to study the process of phosphorus release from peat soils under flooded conditions and to specify the time and conditions in which this process takes place. Studies were con...
Residual Effect of Phosphorus from Organic Manures in Sunflower – Assessment Using Radio Tracer Technique
Organic manures residual effect 32P sunflower phosphorus % pdff A value
2007/10/31
Quantification of plant available phosphorus to the residual crop of sunflower in maize – sunflower cropping sequence from organic manures namely farmyard manure (FYM), poultry manure (PM), Bio compos...
PHOSPHATASE ACTIVITY OF NON-HAIR FORMING CYANOBACTERIUM RIVULARIA AND ITS ROLE IN PHOSPHORUS DYNAMICS IN DEEPWATER RICE-FIELDS
PMEase PDEase Km Vmax
2005/6/28
Phosphatase activity of Rivularia strains II and I isolated from a deepwater rice field was
studied. When grown under conditions of P-limitation the strains did not form hair and showed great variati...