Notes:
|
At head of title : Development of criteria and methods for improving the efficiency of soil management and tillage operations with special reference to arid and semi-arid regions. Appendix 2 to Final report.
With : Some experiments on soil preparation for water conservation and for optimizing seedling emergence.
Bibliography : p.15-17.
[Variant title:Some experiments on soil preparation for water conservation and for optimizing seedling emergence.]
|