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TEKTRAN
The ARS Manuscripts Database
Search What is TEKTRAN Browse The Latest
Type, Placement, & Timing of Fertilizer
item EFFECT OF ROTATION, TILLAGE, AND FERTILITY ON RICE YIELD AND NUTRIENT CYCLING (Nov 2004)
item LONG-TERM MANAGEMENT EFFECTS ON THE MOBILE HUMIC ACID FRACTION (Nov 2004)
item CHARACTERIZATION OF HUMIC ACID FRACTIONS IMPROVES ESTIMATES OF NITROGEN MINERALIZATION KINETICS FOR LOWLAND RICE SOILS (Jul 2004)
item NITROGEN MINERALIZATION FROM HUMIC ACID FRACTIONS IN RICE SOILS DEPENDS ON DEGREE OF HUMIFICATION (Jul 2004)
item RELATIONSHIP OF CORN AND SOYBEAN YIELD TO SOIL AND TERRAIN PROPERTIES (May 2004)
item POTENTIAL METHODS FOR REDUCING NITRATE LOSSES IN ARTIFICIALLY DRAINED FIELDS (Mar 2004)
item BEYOND FERTILIZER MANAGEMENT: IN-FIELD APPROACHES FOR REDUCING NITRATE LOADS COMING FROM AGRICULTURAL DRAINAGE TILES (Mar 2004)
item USING THE LATE SPRING NITRATE TEST TO REDUCE NITRATE LOSS WITHIN A WATERSHED (Mar 2004)
item GROWTH RESPONSES OF CORN (ZEA MAY L.) TO COMPOSTED AND FRESH SOLID SWINE (SUS SCROFA L.) MANURE (Jan 2004)
item TIMING OF APPLICATION AND COMPOSTING AFFECT CORN (ZEA MAYS L.) AND YIELD RESPONSE TO SOLID SWINE (SUS SCROFA L.) MANURE (Jan 2004)
item EVALUATION OF SWAT ON MODELING NITRATE-NITROGEN IN SOIL PROFILE AND STREAM DISCHARGE FOR WALNUT CREEK WATERSHED WITH TILE AND POTHOLE (Nov 2003)
item ASSESSMENT TOOL (SWAT) TO LANDSCAPES WITH TILES AND POTHOLES. PART II. VALIDATION OF NEW PROCEDURES. CASE OF WALNUT CREEK WATERSHED (IOWA) (Nov 2003)
item CHANGES IN SOIL CARBON RESPONSE TO YEAR, PREVIOUS CROP, AND COVER CROP (Nov 2003)
item ON-THE-GO NEAR INFRARED REFLECTANCE SPECTROSCOPY ANALYSIS OF SOILS (Nov 2003)
item SOIL AND PLANT NITROGEN CYCLING UNDER TILLAGE PRACTICES IN RICE-BASED ROTATIONS IN ARKANSAS (Nov 2003)
item MAPPING SOIL CARBON WITH ON-THE-GO NEAR INFRARED SPECTROSCOPY (Oct 2003)
item LONG-TERM EFFECTS OF NITROGEN FERTILIZATION AND CROP ROTATION ON SOIL PROPERTIES IN CORN-BELT AGROECOSYSTEMS (Aug 2003)
item AN ON-THE-GO SPECTAL REFLECTANCE SENSOR FOR SOIL (Jul 2003)
item SOIL WATER HYSTERESIS (Jul 2003)
item CHARACTERIZATION OF SOIL ORGANIC MATTER IN TROPICAL RICE SOILS BY ADVANCED SOLID-STATE NMR (Mar 2003)
item A LOW-COST COMPOSITE WATER SAMPLER FOR DRIP AND STREAM FLOW (Jan 2003)
item CORN RESPONSE TO NITROGEN ACROSS LANDSCAPE POSITIONS (Nov 2002)
item ACCELERATED AGING OF AGRICULTURAL SOILS AND THE COUPLING OF THE NITROGEN AND PROTON CYCLES (Nov 2002)
item USE OF NEAR-SURFACE TDR MEASUREMENTS TO PREDICT SUBSURFACE SOLUTE TRANSPORT (Nov 2002)
item SURFACE WATER QUALITY RESPONSE TO A NITROGEN FERTILIZER BMP AT THE WATERSHED SCALE (Sep 2002)
item FIELD EVALUATION OF ANHYDROUS AMMONIA MANIFOLD PERFORMANCE AND VARIABILITY (Aug 2002)
item THE ROLE OF ORGANIC MATTER QUALITY IN NITROGEN CYCLING AND YIELD TRENDS IN INTENSIVELY CROPPED PADDY SOILS (Aug 2002)
item NITROGEN FERTILIZER EFFECTS ON SOIL ORGANIC CARBON DYNAMICS IN CORN-SOYBEAN AGROECOSYSTEMS (Aug 2002)
item A LOW-COST COMPOSITE WATER SAMPLER FOR DRIP AND STREAM FLOW (Jul 2002)
item SUBSURFACE DRAINAGE MODIFICATIONS TO REDUCE NITRATE LOSSES IN DRAINAGE (Jul 2002)
item MODELING LONG-TERM NITROGEN LOSSES IN WALNUT CREEK WATERSHED, IOWA (Jul 2002)
item A SITE-SPECIFIC EVALUATION OF A CROP-DENITRIFICATION/DECOMPOSITION MODEL BASED UPON A US MIDWESTERN ROW-CROP FIELD (Jul 2002)
item SPATIAL AND TEMPORAL VARIABILITY OF SOIL CARBON (Oct 2001)
item AN AUTOREGRESSION MODEL FOR A PAIRED WATERSHED COMPARISON (May 2000)
   
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