搜索结果: 1-15 共查到“农学总论 N Fertilizer”相关记录15条 . 查询时间(0.181 秒)
Short-term influence of anaerobically-digested and conventional swine manure, and N fertilizer on organic C and N, and available nutrients in two contrasting soils
Anaerobic Digestion Available N P, K and S Organic C and N Soil Swine Manure
2013/3/4
A three-year (2006-2008) field experiment was conducted at Swift Current and Star City in Saskatchewan to determine the short-term in-fluence of land-applied anaerobically digested swine manure (ADSM)...
Sources of inaccuracy when estimating economically optimum N fertilizer rates
Confidence Interval Economic Optimum N Rate Trials
2013/2/28
Nitrogen rate trials are often performed to determine the economically optimum N application rate. For this purpose, the yield is modeled as a function of the N application. The regression analysis pr...
Effect of Interactive Effects of Potassium Fertilizer and Foliar Zinc Application on Yield and Quality of Sweet Potato
Sweet potato Potassium Fertilizer foliar Zinc roots quality and yield
2010/11/15
Field experiments were conducted during the two successive spring seasons of 2008 and
2009 in the International Potato Center (ICP), Agriculture Research Center (ARC), Kafr El-Zayat, El- Gharbia Gove...
Fertilizer options for sustainable maize (Zea mays L.) production in the Trans Nzoia district of Kenya
Nzoia district maize variety yield diammonium phosphate
2011/1/11
With increasing human population against declining staple food crop yield trend, food insecurity is inevitable. Soil fertility problem has been identified as a major factor hindering maize productivit...
FERTILIZER CONSUMPTION PATTERNS IN CENTRAL EUROPEAN COUNTRIES – EFFECT ON ACTUAL YIELD DEVELOPMENT TRENDS IN 1986-2005 YEARS – A COMPARATIVE STUDY OF THE CZECH REPUBLIC AND POLAND
long-term patterns of fertilizer consumption trends of actual yields development temporary yield gap
2010/12/9
This study outlines the long-term trends of fertilizers consumption in the Czech Republic and Poland and their impact on actual yield development of main crops for the period 1986-2005. In both countr...
Farmer evaluation of phosphorus fertilizer application to annual legumes in Chisepo, Central Malawi
Grain legume farmer participation soil fertility phosphorus monitoring and evaluation
2011/1/11
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...
Variable rate fertilizer application in Turkish wheat agriculture: Economic assessment
Precision agriculture economic assessment wheat production variable rate fertilizer application
2011/1/11
Fertilizer application is one of the most important operations in agricultural production. Traditionally, fertilizer is applied onto the whole farmland regardless of the variations across the land.
Economic assessment of fertilizer use and integrated practices for environmental sustainability and agricultural productivity in Sudan savannah zone, Nigeria
Organic inorganic fertilizer nutrient loss environmental exploitation degradation
2011/1/10
An assessment of fertilizer use and other integrated practices was carried out with two hundred farmers selected by stratified random sampling from twenty villages in Kano and Katsina States of Nigeri...
Influence of Fertilizer Application on Seed-Protein Composition and Their Accumulation Pattern during Ripening Stage in Seed-Protein Mutants of Rice
Accumulation of protein Fertilization Globulin Glutelin Prolamine Rice, Seed protein
2009/7/8
Rice varieties derived from mutants with various kinds of seed protein components such as low glutelin or 26k-Da globulin deficiency were grown in different fertilizer conditions. The results of analy...
Preliminary evaluation of the effects of carbonized chicken manure, refuse derived fuel and K fertilizer application on the growth, nodulation, yield, N and P contents of soybean and cowpea in the greenhouse
Carbonization chicken manure grain legumes refuse derived fuel seed yield
2009/3/4
Carbonized organic materials have not traditionally been applied to grain legumes such as soybean (Glycine max L. Merrill) and cowpea (Vigna unguiculata L. Walp) although the potential for favourabl...
Influence of some meteorological factors on fertilizer use efficiency in winter wheat growing
fertilization dressing autumn-winter precipitation moisture index
2008/11/14
A field experiment with winter wheat (Triticum aestivum) on Orthic Luvisol was conducted for a period of eleven years. This study gives the ground to establish correctly the fertilizer rates, especial...
Mathematical planning in experiments on 'soil-fertilizer-yield' interactions
experimental planning agrophysical parameters nutrients
2008/11/14
The objective of the study was to show the possibility and feasibility of the application of mathematical planning for the determination of the optimum structural parame- ters and bulk density of the ...
Influence of Increased Plant Density and Fertilizer Levels on Physiological Parameters and Yield of Greengram (Vigna radiata (L.) Wilczek)
Greengram increased plant density fertilizer levels physiological parameters yield
2010/11/11
The treatments were fitted in a split plot design replicated thrice. The results of the experiments revealed that transpiration rate increased with decrease in plant population. Nutrient management pr...
Influence of dynamical factors on safe work with a fertilizer spreader
dynamical factors safe work a fertilizer spreader
2010/1/18
Influence of dynamical factors on safe work with a fertilizer spreader.
ECONOMIC CONSIDERATION OF PRODUCING FERTILIZER FROM COAL-FIRED FLUE GAS: APPLICATION OF BULGARIAN EXPERIENCE TO CASE STUDY OF PORTUGAL
fertilizer fl ue gas sulfur dioxide willingness to pay
2010/12/2
A Bulgarian project at Maritsa East power station demonstrated the proper transformation of air pollutants (SOx and NOx) into nitrogen fertilizer. Although this technology has not been put into practi...