Download e-book for iPad: Advances in Agronomy, Vol. 28 by N.C. Brady (Ed.)

By N.C. Brady (Ed.)

ISBN-10: 0120007282

ISBN-13: 9780120007288

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Extra resources for Advances in Agronomy, Vol. 28

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J. Agric. Res. 15,231-233. Wolf, D. , Peace, R. , and Lee, D. R. Crop Sci. 9,24-27. This Page Intentionally Left Blank STATISTICAL METHODS IN SOIL CLASSIFICATION RESEARCH . Rodney J Arkley Department of Soils and Plant Nutrition. College of Natural Resources. University of California. Berkeley. California ............. .............................................. I . Introduction: Objectives and Problems of Soil Classification 11. Numerical Taxonomy or Cluster Analysis of Soils A. GeneralTheory B.

The relation between nitrogen stress (SNR) and the concentration of nitrogen in the youngest expanded leaf of wheat between the third and fgth week after emergence. After Greenwood (1966). To test the general applicability of leaf nitrogen fractions as estimators of S N , the constancy of the relationship must be investigated under a range of conditions. The results of some investigations are reviewed below. A direct comparison of the relationship of SN to leaf nitrogen was made between four commercial genotypes of wheat between the third and fifth week after emergence.

17,647-655. , and Dowling, E. J. 1967. Aust. J. Agric. Res. 18,223-233. , and Dowling, E. J. 1969a. Aust. J. Biol. Sci. 22,505-514. , and Dowling, E. J. 1969b. Aust. J. Biol. Sci. 22,515-521. , and Dowling, E. J. Aust. J. Agric. Res. 27,5342. , and Dowling, E. J. Aust. J. Exp. Agric. Anirn. Husb. 9, 329-340. , Greenwood, E. A. , and Dowling, E. J. 1972. Aust. J. Biol. Sci. 25, 1147-1 156. Chapman, H . , ed. 1966. ” Div. of Agric. , Univ. of California. Goodall, D. , and Gregory, F. G. 1947. Cornrn.

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Advances in Agronomy, Vol. 28 by N.C. Brady (Ed.)


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