THE greater part of this thick volume consists of a brief description of the distinguishing characters of the most important orders of Flowering and Flowerless Plants, with a longer account of the ...
Introduction -- The soil factor : Importance of soil to plants ; Soil defined ; The parent materials ; The organic increment ; Soil organism ; Soil moisture and air ; Soil solutes ; Soil development ; ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results