-
2
-
-
0001465481
-
A simple statistical procedure for partitioning soil test correlation data into two classes
-
Cate, Jr., R.B. and L. A. Nelson. 1971. A simple statistical procedure for partitioning soil test correlation data into two classes. Soil Sci. Soc. Am. Proc. 35:658-659.
-
(1971)
Soil Sci. Soc. Am. Proc.
, vol.35
, pp. 658-659
-
-
Cate R.B., Jr.1
Nelson, L.A.2
-
4
-
-
0345196674
-
-
Department of Agronomy, Colorado State University, Fort Collins, CO
-
Follet, R.H., P.N. Soltanpour, D.G. Westfall, and J.R. Self. 1991. Guide to Fertilizer Recommendations in Colorado. Department of Agronomy, Colorado State University, Fort Collins, CO.
-
(1991)
Guide to Fertilizer Recommendations in Colorado
-
-
Follet, R.H.1
Soltanpour, P.N.2
Westfall, D.G.3
Self, J.R.4
-
5
-
-
0344334143
-
Correcting turbidity interference in the determination of phosphorus
-
Folson, Jr., B.L., H.D. Sunderman, and L.R. Hossner. 1977. Correcting turbidity interference in the determination of phosphorus. Soil Sci. Soc. Am. J. 41:823-824.
-
(1977)
Soil Sci. Soc. Am. J.
, vol.41
, pp. 823-824
-
-
Folson B.L., Jr.1
Sunderman, H.D.2
Hossner, L.R.3
-
6
-
-
0000677835
-
Nitrogen-inorganic forms
-
A.L. Page et al. (eds.), Agronomy 9. American Society of Agronomy, Madison, WI
-
Keeney, D.R. and D.W. Nelson. 1982. Nitrogen-inorganic forms, pp. 643-698. In: A.L. Page et al. (eds.), Methods of Soil Analysis. Part 2. 2nd ed. Agronomy 9. American Society of Agronomy, Madison, WI.
-
(1982)
Methods of Soil Analysis. Part 2. 2nd Ed.
, pp. 643-698
-
-
Keeney, D.R.1
Nelson, D.W.2
-
7
-
-
0001536386
-
Development of a DTPA soil test for zinc, iron, manganese, and copper
-
Lindsay, W.L. and W.A. Norvell. 1978. Development of a DTPA soil test for zinc, iron, manganese, and copper. Soil Sci. Soc. Am. J. 42:421-428.
-
(1978)
Soil Sci. Soc. Am. J.
, vol.42
, pp. 421-428
-
-
Lindsay, W.L.1
Norvell, W.A.2
-
8
-
-
0021560138
-
Mehlich 3 soil test extradant: A modification of Mehlich 2 extradant
-
Mehlich, A. 1984. Mehlich 3 soil test extradant: A modification of Mehlich 2 extradant. Commun. Soil Sci. Plant Anal. 1(12):1409-1416.
-
(1984)
Commun. Soil Sci. Plant Anal.
, vol.1
, Issue.12
, pp. 1409-1416
-
-
Mehlich, A.1
-
9
-
-
34247898040
-
A modified single solution method for the determination of phosphates in natural waters
-
Murphy, J. and J.P. Riley. 1962. A modified single solution method for the determination of phosphates in natural waters. Anal. Chim. Acta 27:31-36.
-
(1962)
Anal. Chim. Acta
, vol.27
, pp. 31-36
-
-
Murphy, J.1
Riley, J.P.2
-
10
-
-
0002151814
-
Estimation of available phosphorus in soils by extraction with sodium bicarbonate
-
U.S. Government Printing Office, Washington, DC
-
Olsen, S.R., C.V. Cole, F.S. Watanabe, and L.A. Dean. 1954. Estimation of Available Phosphorus in Soils by Extraction with Sodium Bicarbonate. USDA Circ. 939. U.S. Government Printing Office, Washington, DC.
-
(1954)
USDA Circ.
, vol.939
-
-
Olsen, S.R.1
Cole, C.V.2
Watanabe, F.S.3
Dean, L.A.4
-
11
-
-
0011289715
-
Calibration of nitrogen and phosphorus soil tests with yield of proso millet
-
Rodriguez, J.B., G.A. Peterson, and D.G. Westfall. 1989. Calibration of nitrogen and phosphorus soil tests with yield of proso millet. Soil Sci. Soc. Am. J. 53:1737-1741.
-
(1989)
Soil Sci. Soc. Am. J.
, vol.53
, pp. 1737-1741
-
-
Rodriguez, J.B.1
Peterson, G.A.2
Westfall, D.G.3
-
12
-
-
0028599904
-
Optimal conditions for phosphorus analysis by the ascorbic acid-molybdenum blue method
-
Rodriguez, J.B., J.R. Self, and P.N. Soltanpour. 1994. Optimal conditions for phosphorus analysis by the ascorbic acid-molybdenum blue method. Soil Sci. Soc. Am. J. 58:866-870.
-
(1994)
Soil Sci. Soc. Am. J.
, vol.58
, pp. 866-870
-
-
Rodriguez, J.B.1
Self, J.R.2
Soltanpour, P.N.3
-
13
-
-
84952404484
-
A new soil test for simultaneous extraction of macro and micronutrients in alkaline soils
-
Soltanpour, P.N. and A.P. Schwab. 1977. A new soil test for simultaneous extraction of macro and micronutrients in alkaline soils. Commun. Soil Sci. Plant Anal. 8(3):195-207.
-
(1977)
Commun. Soil Sci. Plant Anal.
, vol.8
, Issue.3
, pp. 195-207
-
-
Soltanpour, P.N.1
Schwab, A.P.2
-
15
-
-
0345628687
-
Soil test correlation problems with two phosphorus methods on similar soils
-
Varvel, G.E., F.N. Anderson, and G.A. Peterson. 1981. Soil test correlation problems with two phosphorus methods on similar soils. Agron. J. 73:516-520.
-
(1981)
Agron. J.
, vol.73
, pp. 516-520
-
-
Varvel, G.E.1
Anderson, F.N.2
Peterson, G.A.3
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