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Advances In AGRONOMY Vol. 37
During the past 35 years some 532 crop and soil scientists have prepared
papers for inclusion in published volumes of Advances in Agronomy. In
doing so, they have spent literally thousands of hours of their own time
and each has interacted with dozens of colleagues as the papers were
prepared. Scientists around the world are indebted to these authors. We
have all reaped the benefits of their dedication. Postgraduate students
have found these reviews to be invaluable as they summarized the literature
in their respective thesis subject areas. Scientists from a given country
are made aware of the findings of their colleagues in other countries. And
a record of scientific progress has been built in the broad fields of crop
and soil science.
Twenty-two scientists from 11 different countries have followed in the
footsteps of their predecessors in preparing papers for this volume. They
have lived up to the high standards set by past authors in providing reviews
in 10 important subject areas
Three of these papers deal with specific cultivated crops. One brings
us up to date on the physiology and morphology of red clover. The man-
agement of alfalfa pastures in the tropics is covered in the second, and
the practical utilization of the man-made cereal crop triticale is the subject
of the third paper.
Plant breeders will be interested in the article on the selection of sugar
beets and other crops based on the partitioning of photosynthetic products
The paper on field measurements of leaf water potential will be of concern
to all scientists working on soil-water-plant relations.
Two articles review research on soil erosion, one as it is affected by
vegetative cover in the United States, the other as various factors influence
it in the tropics. Recent findings relating to the oxidation of sulfur in soils
are the subject of one review. Likewise, research on the interaction of
phosphate and of lime as it affects soils and plants is covered. The tenth
article focuses on selenium in soils and plants in relation to human and
animal nutrition.
We salute the authors who prepared these reviews and thank them sin-
cerely for their efforts.
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