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Results: 1-25/28
Authors:
KARLEN DL
GARDNER JC
ROSEK MJ
Citation: Dl. Karlen et al., A SOIL QUALITY FRAMEWORK FOR EVALUATING THE IMPACT OF CRP, Journal of production agriculture, 11(1), 1998, pp. 56-60
Authors:
KARLEN DL
KUMAR A
KANWAR RS
CAMBARDELLA CA
COLVIN TS
Citation: Dl. Karlen et al., TILLAGE SYSTEM EFFECTS ON 15-YEAR CARBON-BASED AND SIMULATED N BUDGETS IN A TILE-DRAINED IOWA FIELD, Soil & tillage research, 48(3), 1998, pp. 155-165
Authors:
KARLEN DL
KRAMER LA
LOGSDON SD
Citation: Dl. Karlen et al., FIELD-SCALE NITROGEN BALANCES ASSOCIATED WITH LONG-TERM CONTINUOUS CORN PRODUCTION, Agronomy journal, 90(5), 1998, pp. 644-650
Authors:
SADLER EJ
BUSSCHER WJ
BAUER PJ
KARLEN DL
Citation: Ej. Sadler et al., SPATIAL SCALE REQUIREMENTS FOR PRECISION FARMING - A CASE-STUDY IN THE SOUTHEASTERN USA, Agronomy journal, 90(2), 1998, pp. 191-197
Authors:
PAZ JO
BATCHELOR WD
COLVIN TS
LOGSDON SD
KASPAR TC
KARLEN DL
Citation: Jo. Paz et al., ANALYSIS OF WATER-STRESS EFFECTS CAUSING SPATIAL YIELD VARIABILITY INSOYBEANS, Transactions of the ASAE, 41(5), 1998, pp. 1527-1534
Authors:
KANWAR RS
COLVIN TS
KARLEN DL
Citation: Rs. Kanwar et al., RIDGE, MOLDBOARD, CHISEL, AND NO-TILL EFFECTS ON TILE WATER-QUALITY BENEATH 2 CROPPING SYSTEMS, Journal of production agriculture, 10(2), 1997, pp. 227-234
Authors:
KARLEN DL
MAUSBACH MJ
DORAN JW
CLINE RG
HARRIS RF
SCHUMAN GE
Citation: Dl. Karlen et al., SOIL QUALITY - A CONCEPT, DEFINITION, AND FRAMEWORK FOR EVALUATION, Soil Science Society of America journal, 61(1), 1997, pp. 4-10
Authors:
GILLEY JE
DORAN JW
KARLEN DL
KASPAR TC
Citation: Je. Gilley et al., RUNOFF, EROSION, AND SOIL QUALITY CHARACTERISTICS OF A FORMER CONSERVATION RESERVE PROGRAM SITE, Journal of soil and water conservation, 52(3), 1997, pp. 189-193
Authors:
ANDERSON IC
BUXTON DR
KARLEN DL
CAMBARDELLA C
Citation: Ic. Anderson et al., CROPPING SYSTEM EFFECTS ON NITROGEN REMOVAL, SOIL-NITROGEN, AGGREGATESTABILITY, AND SUBSEQUENT CORN GRAIN-YIELD, Agronomy journal, 89(6), 1997, pp. 881-886
Authors:
COLVIN TS
JAYNES DB
KARLEN DL
LAIRD DA
AMBUEL JR
Citation: Ts. Colvin et al., YIELD VARIABILITY WITHIN A CENTRAL IOWA FIELD, Transactions of the ASAE, 40(4), 1997, pp. 883-889
Authors:
EASH NS
STAHL PD
PARKIN TB
KARLEN DL
Citation: Ns. Eash et al., A SIMPLIFIED METHOD FOR EXTRACTION OF ERGOSTEROL FROM SOIL, Soil Science Society of America journal, 60(2), 1996, pp. 468-471
Authors:
HUNT PG
KARLEN DL
MATHENY TA
QUISENBERRY VL
Citation: Pg. Hunt et al., CHANGES IN CARBON CONTENT OF A NORFOLK LOAMY SAND AFTER 14 YEARS OF CONSERVATION OR CONVENTIONAL TILLAGE, Journal of soil and water conservation, 51(3), 1996, pp. 255-258
Authors:
STEINWAND AL
KARLEN DL
FENTON TE
Citation: Al. Steinwand et al., AN EVALUATION OF SOIL SURVEY CROP YIELD INTERPRETATIONS FOR 2 CENTRALIOWA FARMS, Journal of soil and water conservation, 51(1), 1996, pp. 66-71
Authors:
KARLEN DL
HUNT PG
MATHENY TA
Citation: Dl. Karlen et al., FERTILIZER (15)NITROGEN RECOVERY BY CORN, WHEAT, AND COTTON GROWN WITH AND WITHOUT PREPLANT TILLAGE ON NORFOLK LOAMY SAND, Crop science, 36(4), 1996, pp. 975-981
Authors:
KARLEN DL
DUFFY MD
COLVIN TS
Citation: Dl. Karlen et al., NUTRIENT, LABOR, ENERGY, AND ECONOMIC EVALUATIONS OF 2 FARMING SYSTEMS IN IOWA, Journal of production agriculture, 8(4), 1995, pp. 540-546
Authors:
BUSSCHER WJ
EDWARDS JH
VEPRASKAS MJ
KARLEN DL
Citation: Wj. Busscher et al., RESIDUAL EFFECTS OF SLIT TILLAGE AND SUBSOILING IN A HARDPAN SOIL, Soil & tillage research, 35(3), 1995, pp. 115-123
Authors:
KARLEN DL
WOLLENHAUPT NC
ERBACH DC
BERRY EC
SWAN JB
EASH NS
JORDAHL JL
Citation: Dl. Karlen et al., LONG-TERM TILLAGE EFFECTS ON SOIL QUALITY (VOL 32, PG 313, 1994), Soil & tillage research, 34(1), 1995, pp. 77-78
Authors:
SADLER EJ
KARLEN DL
Citation: Ej. Sadler et Dl. Karlen, AERIAL DRY-MATTER AND NUTRIENT ACCUMULATION COMPARISONS AMONG 5 SOYBEAN EXPERIMENTS, Communications in soil science and plant analysis, 26(19-20), 1995, pp. 3145-3163
Authors:
KARLEN DL
SHANNON MC
SCHNEIDER SM
AMERMAN CR
Citation: Dl. Karlen et al., USING SYSTEMS-ENGINEERING AND REDUCTIONIST APPROACHES TO DESIGN INTEGRATED FARM-MANAGEMENT RESEARCH PROGRAMS, Journal of production agriculture, 7(1), 1994, pp. 144-150
Authors:
CAMBARDELLA CA
MOORMAN TB
NOVAK JM
PARKIN TB
KARLEN DL
TURCO RF
KONOPKA AE
Citation: Ca. Cambardella et al., FIELD-SCALE VARIABILITY OF SOIL PROPERTIES IN CENTRAL IOWA SOILS, Soil Science Society of America journal, 58(5), 1994, pp. 1501-1511
Authors:
KARLEN DL
WOLLENHAUPT NC
ERBACH DC
BERRY EC
SWAN JB
EASH NS
JORDAHL JL
Citation: Dl. Karlen et al., LONG-TERM TILLAGE EFFECTS ON SOIL QUALITY, Soil & tillage research, 32(4), 1994, pp. 313-327
Authors:
KARLEN DL
WOLLENHAUPT NC
ERBACH DC
BERRY EC
SWAN JB
EASH NS
JORDAHL JL
Citation: Dl. Karlen et al., CROP RESIDUE EFFECTS ON SOIL QUALITY FOLLOWING 10-YEARS OF NO-TILL CORN, Soil & tillage research, 31(2-3), 1994, pp. 149-167
Authors:
NOVAK JM
MOORMAN TB
KARLEN DL
Citation: Jm. Novak et al., INFLUENCE OF SOIL AGGREGATE SIZE ON ATRAZINE SORPTION KINETICS, Journal of agricultural and food chemistry, 42(8), 1994, pp. 1809-1812
Authors:
KASPERBAUER MJ
KARLEN DL
Citation: Mj. Kasperbauer et Dl. Karlen, PLANT SPACING AND REFLECTED FAR-RED LIGHT EFFECTS ON PHYTOCHROME-REGULATED PHOTOSYNTHATE ALLOCATION IN CORN SEEDLINGS, Crop science, 34(6), 1994, pp. 1564-1569
Authors:
SADLER EJ
KARLEN DL
Citation: Ej. Sadler et Dl. Karlen, HIGHER-ORDER ANALYSIS OF NUTRIENT ACCUMULATION DATA, Agronomy journal, 86(1), 1994, pp. 26-31