-
1
-
-
0021583718
-
FCM: The fuzzy c-means clustering algorithm
-
Bezdek, J.C., R. Ehrlich, and W. Full. 1984. FCM: The fuzzy c-means clustering algorithm. Comput. Geosci. 10:191-203.
-
(1984)
Comput. Geosci.
, vol.10
, pp. 191-203
-
-
Bezdek, J.C.1
Ehrlich, R.2
Full, W.3
-
2
-
-
0038505485
-
Effects of nitrapyrin on corn yields and recovery of ammonium-N at 18 site-years in Iowa
-
Cerrato, M.E., and A.M. Blackmer. 1990. Effects of nitrapyrin on corn yields and recovery of ammonium-N at 18 site-years in Iowa. J. Prod. Agric. 3:513-521.
-
(1990)
J. Prod. Agric.
, vol.3
, pp. 513-521
-
-
Cerrato, M.E.1
Blackmer, A.M.2
-
3
-
-
0038505497
-
-
Central Platte Natural Resources District, Grand Island, NE
-
Central Platte Natural Resources District. 1998. Groundwater quality management program: Rules and regulations. Central Platte Natural Resources District, Grand Island, NE.
-
(1998)
Groundwater Quality Management Program: Rules and Regulations
-
-
-
4
-
-
0038166847
-
The influence of different approaches for identifying inorganic N and P management zones on fertilizer recommendation. [CD-ROM computer file]
-
P.C Robert et al. (ed.). Bloomington, MN. 16-19 July 2000. ASA, CSSA, and SSSA, Madison, WI
-
Chang, J., D.E. Clay, C.G. Carlson, S.A. Clay, and C.L. Reese. 2000. The influence of different approaches for identifying inorganic N and P management zones on fertilizer recommendation. [CD-ROM computer file] In P.C Robert et al. (ed.) Proc. Fifth International Conference on Precision Agriculture and Other Resource Management. Bloomington, MN. 16-19 July 2000. ASA, CSSA, and SSSA, Madison, WI.
-
(2000)
Proc. Fifth International Conference on Precision Agriculture and Other Resource Management
-
-
Chang, J.1
Clay, D.E.2
Carlson, C.G.3
Clay, S.A.4
Reese, C.L.5
-
5
-
-
0028970807
-
The effect of the nitrification inhibitor dicyandiamide on nitrate leaching and ammonia volatilization: A U.K. nitrate sensitive areas perspective
-
Davies, D.M., and P.J. Williams. 1995. The effect of the nitrification inhibitor dicyandiamide on nitrate leaching and ammonia volatilization: A U.K. nitrate sensitive areas perspective. J. Environ. Manage 45:263-272.
-
(1995)
J. Environ. Manage
, vol.45
, pp. 263-272
-
-
Davies, D.M.1
Williams, P.J.2
-
6
-
-
0033771493
-
Identifying associations among site properties and weed species abundance. II. Hypothesis generation
-
Dielman, J.A., D.A. Mortensen, D.D. Buhler, and R.B. Ferguson. 2000. Identifying associations among site properties and weed species abundance. II. Hypothesis generation. Weed Sci. 48:576-587.
-
(2000)
Weed Sci.
, vol.48
, pp. 576-587
-
-
Dielman, J.A.1
Mortensen, D.A.2
Buhler, D.D.3
Ferguson, R.B.4
-
8
-
-
0029175682
-
Implications of nitrogen management strategies for nitrate leaching potential: Roles of nitrogen source and fertilizer recommendation system
-
Durieux, R.P., H.J. Brown, E.J. Stewart, J.O. Zhao, W.E. Jokela, and F.R. Magdoff. 1995. Implications of nitrogen management strategies for nitrate leaching potential: Roles of nitrogen source and fertilizer recommendation system. Agron. J. 87:884-887.
-
(1995)
Agron. J.
, vol.87
, pp. 884-887
-
-
Durieux, R.P.1
Brown, H.J.2
Stewart, E.J.3
Zhao, J.O.4
Jokela, W.E.5
Magdoff, F.R.6
-
9
-
-
0027981109
-
Nitrate leaching in dryland agroecosystems as influenced by soil and climate gradients
-
Evans, S.D., G.A. Peterson, D.G. Westfall, and E. McGee. 1994. Nitrate leaching in dryland agroecosystems as influenced by soil and climate gradients. J. Environ. Qual. 23:999-1005.
-
(1994)
J. Environ. Qual.
, vol.23
, pp. 999-1005
-
-
Evans, S.D.1
Peterson, G.A.2
Westfall, D.G.3
McGee, E.4
-
10
-
-
0001534867
-
Nitrogen and irrigation management practices to minimize nitrate leaching from irrigated corn
-
Ferguson, R.B., C.A. Shapiro, G.W. Hergert, W.L. Kranz, N.L. Klocke, and D.H. Krull. 1991a. Nitrogen and irrigation management practices to minimize nitrate leaching from irrigated corn. J. Prod. Agric. 4:186-192.
-
(1991)
J. Prod. Agric.
, vol.4
, pp. 186-192
-
-
Ferguson, R.B.1
Shapiro, C.A.2
Hergert, G.W.3
Kranz, W.L.4
Klocke, N.L.5
Krull, D.H.6
-
11
-
-
0026152603
-
Corn uptake and soil accumulation of nitrogen: Management and hybrid effects
-
Ferguson, R.B., J.S. Schepers, G.W. Hergert, and R.D. Lohry. 1991b. Corn uptake and soil accumulation of nitrogen: Management and hybrid effects. Soil Sci. Soc. Am. J. 55:875-880.
-
(1991)
Soil Sci. Soc. Am. J.
, vol.55
, pp. 875-880
-
-
Ferguson, R.B.1
Schepers, J.S.2
Hergert, G.W.3
Lohry, R.D.4
-
13
-
-
0002009345
-
Evaluating farmer-developed management zone maps for precision farming
-
P.C. Robert et al. (ed.), St. Paul, MN. 19-22 July 1998. ASA, CSSA, and SSSA, Madison, WI
-
Fleming, K.L., D.G. Westfall, D.W. Wiens, L.E. Rothe, J.E. Cipra, and D.F. Heerman. 1999. Evaluating farmer-developed management zone maps for precision farming. p. 335-343. In P.C. Robert et al. (ed.) Proceedings of the Fourth International Conference on Precision Agriculture, St. Paul, MN. 19-22 July 1998. ASA, CSSA, and SSSA, Madison, WI.
-
(1999)
Proceedings of the Fourth International Conference on Precision Agriculture
, pp. 335-343
-
-
Fleming, K.L.1
Westfall, D.G.2
Wiens, D.W.3
Rothe, L.E.4
Cipra, J.E.5
Heerman, D.F.6
-
14
-
-
0037655991
-
Evaluating management zone technology and grid soil sampling for variable rate nitrogen application. [CD-ROM computer file]
-
P.C Robert et al. (ed.). Bloomington, MN. 16-19 July 2000. ASA, CSSA, and SSSA, Madison, WI
-
Fleming, K.L., D.G. Westfall, and W.C. Bausch. 2000. Evaluating management zone technology and grid soil sampling for variable rate nitrogen application. [CD-ROM computer file] In P.C Robert et al. (ed.) Proceedings of the Fifth International Conference on Precision Agriculture and Other Resource Management. Bloomington, MN. 16-19 July 2000. ASA, CSSA, and SSSA, Madison, WI.
-
(2000)
Proceedings of the Fifth International Conference on Precision Agriculture and Other Resource Management
-
-
Fleming, K.L.1
Westfall, D.G.2
Bausch, W.C.3
-
15
-
-
0038166852
-
Management zones for soil N and P levels in the Northern Great Plains. [CD-ROM computer file]
-
P.C Robert et al. (ed.). Bloomington, MN. 16-19 July 2000. ASA, CSSA, and SSSA, Madison, WI
-
Franzen, D.W., A.D. Halvorson, and V.L. Hoffman. 2000. Management zones for soil N and P levels in the Northern Great Plains. [CD-ROM computer file] In P.C Robert et al. (ed.) Proceedings of the Fifth International Conference on Precision Agriculture and Other Resource Management. Bloomington, MN. 16-19 July 2000. ASA, CSSA, and SSSA, Madison, WI.
-
(2000)
Proceedings of the Fifth International Conference on Precision Agriculture and Other Resource Management
-
-
Franzen, D.W.1
Halvorson, A.D.2
Hoffman, V.L.3
-
16
-
-
2342560338
-
Variability of soil and landscape attributes within sub-field management zones. [CD-ROM computer file]
-
P.C Robert et al. (ed.). Bloomington, MN. 16-19 July 2000. ASA, CSSA, and SSSA, Madison, WI
-
Fridgen, J.J., N.R. Kitchen, and K.A. Sudduth. 2000. Variability of soil and landscape attributes within sub-field management zones. [CD-ROM computer file] In P.C Robert et al. (ed.) Proceedings of the Fifth International Conference on Precision Agriculture and Other Resource Management. Bloomington, MN. 16-19 July 2000. ASA, CSSA, and SSSA, Madison, WI.
-
(2000)
Proceedings of the Fifth International Conference on Precision Agriculture and Other Resource Management
-
-
Fridgen, J.J.1
Kitchen, N.R.2
Sudduth, K.A.3
-
18
-
-
0038505494
-
Evaluating techniques for defining management zones in the SE Coastal Plain. [CD-ROM computer file]
-
P.C Robert et al. (ed.). Bloomington, MN. 16-19 July 2000. ASA, CSSA, and SSSA, Madison, WI
-
Gerwig, B.K., E.J. Sadler, and D.E. Evans. 2000. Evaluating techniques for defining management zones in the SE Coastal Plain. [CD-ROM computer file] In P.C Robert et al. (ed.) Proceedings of the Fifth International Conference on Precision Agriculture and Other Resource Management. Bloomington, MN. 16-19 July 2000. ASA, CSSA, and SSSA, Madison, WI.
-
(2000)
Proceedings of the Fifth International Conference on Precision Agriculture and Other Resource Management
-
-
Gerwig, B.K.1
Sadler, E.J.2
Evans, D.E.3
-
19
-
-
2242458940
-
Soil electrical conductivity variability. [CD-ROM computer file]
-
P.C Robert et al. (ed.). Bloomington, MN. 16-19 July 2000. ASA, CSSA, and SSSA, Madison, WI
-
Hartsock, N.J., T.G. Mueller, G.W. Thomas, R.I. Barnhisel, and K.L. Wells. 2000. Soil electrical conductivity variability. [CD-ROM computer file] In P.C Robert et al. (ed.) Proceedings of the Fifth International Conference on Precision Agriculture and Other Resource Management. Bloomington, MN. 16-19 July 2000. ASA, CSSA, and SSSA, Madison, WI.
-
(2000)
Proceedings of the Fifth International Conference on Precision Agriculture and Other Resource Management
-
-
Hartsock, N.J.1
Mueller, T.G.2
Thomas, G.W.3
Barnhisel, R.I.4
Wells, K.L.5
-
20
-
-
85101894002
-
Lithium, sodium, potassium, rubidium, and cesium
-
D.L. Sparks et al. (ed.). SSSA., Madison, WI
-
Helmke, P.A., and D.L. Sparks. 1996. Lithium, sodium, potassium, rubidium, and cesium, p. 551-574. In D.L. Sparks et al. (ed.) Methods of soil analysis. Part 3. SSSA Book Series no. 5. SSSA., Madison, WI.
-
(1996)
Methods of Soil Analysis. Part 3. SSSA Book Series No. 5
, vol.5
, Issue.PART 3
, pp. 551-574
-
-
Helmke, P.A.1
Sparks, D.L.2
-
21
-
-
85101895434
-
Current status of nitrification inhibitor use in U.S. agriculture
-
R.D. Hauck et al. (ed.). ASA, CSSA, and SSSA, Madison, WI
-
Hoeft, R.G. 1984. Current status of nitrification inhibitor use in U.S. agriculture, p. 561-570. In R.D. Hauck et al. (ed.) Nitrogen in Crop Production. ASA, CSSA, and SSSA, Madison, WI.
-
(1984)
Nitrogen in Crop Production
, pp. 561-570
-
-
Hoeft, R.G.1
-
22
-
-
0030248278
-
Bromide and nitrogen-15 tracers of nitrate leaching under irrigated corn in Central Nebraska
-
Kessavalou, A., J.W. Doran, W.L. Powers, T.A. Kettler, and J.H. Qian. 1996. Bromide and nitrogen-15 tracers of nitrate leaching under irrigated corn in Central Nebraska. J. Environ. Oual. 25: 1008-1014.
-
(1996)
J. Environ. Oual.
, vol.25
, pp. 1008-1014
-
-
Kessavalou, A.1
Doran, J.W.2
Powers, W.L.3
Kettler, T.A.4
Qian, J.H.5
-
23
-
-
0027686446
-
Soil nitrate leaching potential indices: Using a simulation model as a screening system
-
Khakural, B.R., and P.C. Robert. 1993. Soil nitrate leaching potential indices: Using a simulation model as a screening system. J. Environ. Oual. 22:839-845.
-
(1993)
J. Environ. Oual.
, vol.22
, pp. 839-845
-
-
Khakural, B.R.1
Robert, P.C.2
-
24
-
-
0033383622
-
Soil electrical conductivity as a crop productivity measure for claypan soils
-
Kitchen, N.R., K.A. Sudduth, and S.T. Drummond. 1999. Soil electrical conductivity as a crop productivity measure for claypan soils. J. Prod. Agric. 12:607-617.
-
(1999)
J. Prod. Agric.
, vol.12
, pp. 607-617
-
-
Kitchen, N.R.1
Sudduth, K.A.2
Drummond, S.T.3
-
26
-
-
0030966482
-
Classification as a first step in the interpretation of temporal and spatial variation of crop yield
-
Lark, R.M., and J.V. Stafford. 1997. Classification as a first step in the interpretation of temporal and spatial variation of crop yield. Ann. Appl. Biol. 130:111-121.
-
(1997)
Ann. Appl. Biol.
, vol.130
, pp. 111-121
-
-
Lark, R.M.1
Stafford, J.V.2
-
27
-
-
0001324660
-
Analysis of yield maps in support of field investigations of soil variation
-
J.V. Stafford (ed.), Odense, Denmark, 11-15 July 1999. Sheffield Academic Press, Ltd., Sheffield, UK
-
Lark, R.M., H.C. Bolam, T. Mayr, I. Bradley, R.G.O. Burton, and P.M.R. Dampney. 1999. Analysis of yield maps in support of field investigations of soil variation. p. 151-161. In J.V. Stafford (ed.) Precision Agriculture'99, Proc. 2nd European Conf. on Precision Agriculture, Odense, Denmark, 11-15 July 1999. Sheffield Academic Press, Ltd., Sheffield, UK.
-
(1999)
Precision Agriculture'99, Proc. 2nd European Conf. on Precision Agriculture
, pp. 151-161
-
-
Lark, R.M.1
Bolam, H.C.2
Mayr, T.3
Bradley, I.4
Burton, R.G.O.5
Dampney, P.M.R.6
-
28
-
-
0035095155
-
Some tools for parsimonious analysis and interpretation of within-field variation
-
Lark, R.M. 2001. Some tools for parsimonious analysis and interpretation of within-field variation. Soil Tillage Res. 58:99-111.
-
(2001)
Soil Tillage Res.
, vol.58
, pp. 99-111
-
-
Lark, R.M.1
-
29
-
-
0003605027
-
-
SAS Institute, Inc., Cary, NC
-
Littell, R.C., G.A. Milliken, W.W. Stroup, and R.D. Wolfinger. 1996. SAS system for mixed models. SAS Institute, Inc., Cary, NC.
-
(1996)
SAS System for Mixed Models
-
-
Littell, R.C.1
Milliken, G.A.2
Stroup, W.W.3
Wolfinger, R.D.4
-
30
-
-
2242442087
-
Strategies for establishing management zones for site-specific nutrient management. [CD-ROM computer file]
-
P.C Robert et al. (ed.). Bloomington, MN. 16-19 July 2000. ASA, CSSA, and SSSA, Madison, WI
-
Luchiari, A., J. Shanahan, D. Francis, M. Schlemmer, J. Schepers, M. Liebig, A. Schepers, and S. Payton. 2000. Strategies for establishing management zones for site-specific nutrient management. [CD-ROM computer file] In P.C Robert et al. (ed.) Proceedings of the Fifth International Conference on Precision Agriculture and Other Resource Management. Bloomington, MN. 16-19 July 2000. ASA, CSSA, and SSSA, Madison, WI.
-
(2000)
Proceedings of the Fifth International Conference on Precision Agriculture and Other Resource Management
-
-
Luchiari, A.1
Shanahan, J.2
Francis, D.3
Schlemmer, M.4
Schepers, J.5
Liebig, M.6
Schepers, A.7
Payton, S.8
-
31
-
-
0000118514
-
Application of fuzzy sets to climatic variation
-
McBratney, A.B., and A.W. Moore. 1985. Application of fuzzy sets to climatic variation. Agric. Forest Meteor. 35:165-185.
-
(1985)
Agric. Forest Meteor.
, vol.35
, pp. 165-185
-
-
McBratney, A.B.1
Moore, A.W.2
-
32
-
-
0026472009
-
A continuum approach to soil classification by modified fuzzy k-means with extragrades
-
McBratney, A.B., and J.J. deGruijter. 1992. A continuum approach to soil classification by modified fuzzy k-means with extragrades. J. Soil Sci. 43:159-175.
-
(1992)
J. Soil Sci.
, vol.43
, pp. 159-175
-
-
McBratney, A.B.1
DeGruijter, J.J.2
-
33
-
-
0037491592
-
Nitrification inhibitors - Potentials and limitations
-
ASA and SSSA. Madison, WI
-
Meisinger, J.J., G.W. Randall, and M.L. Vitosh. (ed.) 1980. Nitrification inhibitors - Potentials and limitations. ASA Spec. Pub. 38, ASA and SSSA. Madison, WI.
-
(1980)
ASA Spec. Pub.
, vol.38
-
-
Meisinger, J.J.1
Randall, G.W.2
Vitosh, M.L.3
-
34
-
-
85101890860
-
Nitrogen - Inorganic forms
-
D.L. Sparks et al. (ed.). SSSA., Madison, WI
-
Mulvaney, R.L. 1996. Nitrogen - Inorganic Forms. p. 1123-1184. In D.L. Sparks et al. (ed.) Methods of soil analysis. Part 3. SSSA Book Series no. 5. SSSA., Madison, WI.
-
(1996)
Methods of Soil Analysis. Part 3. SSSA Book Series No. 5
, vol.5
, Issue.PART 3
, pp. 1123-1184
-
-
Mulvaney, R.L.1
-
35
-
-
85084940845
-
Total carbon, organic carbon, and organic matter
-
D.L. Sparks et al. (ed.). SSSA, Madison, WI
-
Nelson, D.W., and L.E. Sommers. 1996. Total carbon, organic carbon, and organic matter. p. 961-1010. In D.L. Sparks et al. (ed.) Methods of soil analysis. Part 3. SSSA Book Series no. 5. SSSA, Madison, WI.
-
(1996)
Methods of Soil Analysis. Part 3. SSSA Book Series No. 5
, vol.5
, Issue.PART 3
, pp. 961-1010
-
-
Nelson, D.W.1
Sommers, L.E.2
-
36
-
-
0027047710
-
Soil pattern recognition with fuzzy c-means: Application to classification and soil-landform interrelationships
-
Odeh, I.O.A., A.B. McBratney, and D.J. Chittleborough. 1992. Soil pattern recognition with fuzzy c-means: Application to classification and soil-landform interrelationships. Soil Sci. Soc. Am. J. 56:505-516.
-
(1992)
Soil Sci. Soc. Am. J.
, vol.56
, pp. 505-516
-
-
Odeh, I.O.A.1
McBratney, A.B.2
Chittleborough, D.J.3
-
37
-
-
0031673041
-
Evaluation of nitrate leaching potential in Minnesota glacial outwash soils using the CERES-Maize model
-
Pang, X.P., S.C. Gupta, J.F. Moncrief, C.J. Ren, and H.H. Cheng. 1998. Evaluation of nitrate leaching potential in Minnesota glacial outwash soils using the CERES-Maize model. J. Environ. Qual. 27:75-85.
-
(1998)
J. Environ. Qual.
, vol.27
, pp. 75-85
-
-
Pang, X.P.1
Gupta, S.C.2
Moncrief, J.F.3
Ren, C.J.4
Cheng, H.H.5
-
38
-
-
85101888946
-
Copper and zinc
-
D.L. Sparks et al. (ed.). SSSA, Madison, WI
-
Reed, S.T., and D.C. Martens. 1996. Copper and zinc. P. 703-722. In D.L. Sparks et al. (ed.) Methods of soil analysis. Part 3. SSSA Book Series no. 5. SSSA, Madison, WI.
-
(1996)
Methods of Soil Analysis. Part 3. SSSA Book Series No. 5
, vol.5
, Issue.PART 3
, pp. 703-722
-
-
Reed, S.T.1
Martens, D.C.2
-
39
-
-
0032211933
-
Evaluating management and soil and weather contributions to potential nitrate leaching from a Pennsylvania dairy farm using NLEAP
-
Saporito, L.S., and L.E. Lanyon. 1998. Evaluating management and soil and weather contributions to potential nitrate leaching from a Pennsylvania dairy farm using NLEAP. J. Environ. Qual. 27: 1367-1375.
-
(1998)
J. Environ. Qual.
, vol.27
, pp. 1367-1375
-
-
Saporito, L.S.1
Lanyon, L.E.2
-
40
-
-
0025925727
-
Maize production impacts on groundwater quality
-
Schepers, J.S., M.G. Moravek, E.E. Alberts, and K.D. Frank. 1991. Maize production impacts on groundwater quality. J. Environ. Qual. 20:12-16.
-
(1991)
J. Environ. Qual.
, vol.20
, pp. 12-16
-
-
Schepers, J.S.1
Moravek, M.G.2
Alberts, E.E.3
Frank, K.D.4
-
42
-
-
36249029743
-
Development of a methodology for the variable-rate application of fertiliser N in irrigated cotton fields. [CD-ROM computer file]
-
P.C Robert et al. (ed.). Bloomington, MN. 16-19 July 2000. ASA, CSSA, and SSSA, Madison, WI
-
Stewart, C.M., and A.B. McBratney. 2000. Development of a methodology for the variable-rate application of fertiliser N in irrigated cotton fields. [CD-ROM computer file] In P.C Robert et al. (ed.) Proceedings of the Fifth International Conference on Precision Agriculture and Other Resource Management. Bloomington, MN. 16-19 July 2000. ASA, CSSA, and SSSA, Madison, WI.
-
(2000)
Proceedings of the Fifth International Conference on Precision Agriculture and Other Resource Management
-
-
Stewart, C.M.1
McBratney, A.B.2
-
43
-
-
0025256375
-
Nitrogen management and nitrification inhibitor effects on nitrogen-15 urea: I. Yield and fertilizer use efficiency
-
Walters, D.T., and G.L. Malzer. 1990a. Nitrogen management and nitrification inhibitor effects on nitrogen-15 urea: I. Yield and fertilizer use efficiency. Soil Sci. Soc. Am. J. 54:115-122.
-
(1990)
Soil Sci. Soc. Am. J.
, vol.54
, pp. 115-122
-
-
Walters, D.T.1
Malzer, G.L.2
-
44
-
-
0025256376
-
Nitrogen management and nitrification inhibitor effects on nitrogen-15 urea: II. Nitrogen leaching and balance
-
Walters, D.T., and G.L. Malzer. 1990b. Nitrogen management and nitrification inhibitor effects on nitrogen-15 urea: II. Nitrogen leaching and balance. Soil Sci. Soc. Am. J. 54:122-130.0
-
(1990)
Soil Sci. Soc. Am. J.
, vol.54
, pp. 122-1300
-
-
Walters, D.T.1
Malzer, G.L.2
-
45
-
-
0004697704
-
An evaluation of nitrogen runoff and leaching potential in the High Plains
-
Wu, J.J., D.J. Bernardo, H.P. Mapp, S. Geleta, M.L. Teague, K.B. Watkins, G.J. Sabbagh, R.L. Elliott, and J.F. Stone. 1997. An evaluation of nitrogen runoff and leaching potential in the High Plains. J. Soil Water Conserv. 52:73-80.
-
(1997)
J. Soil Water Conserv.
, vol.52
, pp. 73-80
-
-
Wu, J.J.1
Bernardo, D.J.2
Mapp, H.P.3
Geleta, S.4
Teague, M.L.5
Watkins, K.B.6
Sabbagh, G.J.7
Elliott, R.L.8
Stone, J.F.9
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