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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
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 ...
Relation between Shoot Phosphorus Content and Tillering Rate in Wheat Varieties Varied in Adaptability to Low Available Phosphoric-acid Soil
Adaptability to low phosphorus content Andsol Nitrogen Phosphoric-acid Potassium Tiller Varietal difference Wheat
2009/8/4
Relation between phosphorus, nitrogen and potassium contents and the emergence rate of T1 (tiller in axils of the first leaf on main stem leaf) in wheat varieties having different adaptability to low ...
CHANGES IN THE AVAILABLE MAGNESIUM AND ZINC CONTENTS OF SOILS AFTER THE APPLICATION OF SEWAGE SLUDGES AND SEWAGE SLUDGE – PEAT MIXTURES
sewage sludge peat fertilization zinc
2010/12/8
The main subject of our work was to evaluate the effects of applied organic fertilizers: farmyard manure, sewage sludges of various origin and the sludge-peat mixture on changes in the available magne...
Estimation of the Plant-Available Amounts of N in Poultry Manure Dried with Fan Separator by 15 N Trace Technique
Plant-Available Amounts N Poultry Manure Fan Separator 15 N Trace Technique
2009/1/14
In this pot experiment, poultry manure dried by Fan separator was applied at different rates N to see the effect of poul-try manure on the growth and total N uptake of corn and rice. Contribitions of...
Sufficiency and Deficiency Indices of Soil Available Zinc for Rice in the Alluvial Soil of the Coastal Yellow Sea
Agro Services International method coastal alluvial soil rice
2008/12/11
To determine the sufficiency and deficiency indices of soil available Zn by the Agro Services International (ASI) method (ASI-Zn) for Zn fertilizer recommendation in rice production in the alluvial so...
The available soil water capacity (ASWC) is important for studying crop production, agro-ecological zoning, irrigation planning, and land cover changes. Laboratory determined data of ASWC ...
EFFECT OF LONG-TERM FERTILIZATION ON THE AVAILABLE TOXIC ELEMENT CONTENT OF DIFFERENT SOILS
long-term trials fertilization available toxic elements soil
2010/11/30
The National Long-Term Fertilization Trials were set up more than 30 years ago and in that time soil and water protection and environmental relations of fertilization had not been the direct aim of re...
About the effect of the contents and ratios of soil’s available calcium, potassium and magnesium in liming of acid soils
acid soils lime fertilisers calcium magnesium potassium yield red clover (Trifolium pratense L.) Italian ryegrass
2010/1/13
Soils in Estonia are characterised by washing out, i.e. leaching, of calcium carbonates and magnesium carbonates. Calcium losses from the arable layer may amount 150–500 (600) kg ha-1 a year, resultin...
Estimation of the Available Energy for Evapotranspiration with the Use of Remote Sensing, a Simple Modelling Approach
Estimation of the Available Energy Evapotranspiration Use of Remote Sensing Simple Modelling Approach
2014/4/15
Estimation of the Available Energy for Evapotranspiration with the Use of Remote Sensing, a Simple Modelling Approach。