The book is intended to help children to
study nature. This book covers the following topics: What is the soil
made of, more about the clay, what lime does to clay, some experiments with
the sand, the plant food in the soil, the dwellers in the soil, the soil and
the plant, cultivation and tillage, the soil and the countryside, how soil has
been made.
This
note explains the following topics: Habits Of Worms, The Amount Of Fine Earth
Brought Up By Worms To The Surface, The Part Which Worms Have Played In The
Burial Of Ancient Buildings, The Action Of Worms In The Denudation Of The Land,
The Denudation Of The Land.
In the first section of this book on
soil erosion, an introduction to the soil erosion problem is presented. In
the first part of the second section, rainfall erosivity is estimated on the
basis of pluviograph records and cumulative rainfall depths by means of
empirical equations and machine learning methods. In the second part of the
second section, a physically-based, hydrodynamic, finite element model is
described for the computation of surface runoff and channel flows.
This book is
organized into two sections. The first section covers three major aspects, viz.,
an understanding of patterns of land degradation and desertification for
developing mitigation strategies, land-atmosphere interaction from response of
land cover to climate change effects of Karst rocky desertification. The last
section dwells on the relationship between soil degradation and crop production
and an examination on how land degradation impacts the quality of soil in
communal rangelands.
Soil Fertility book presents nine chapters written by renowned soil
fertility experts from Africa, Asia and South America. The book is divided into
two sections. Section 1, Biological Processes and Integration of Inorganic and
Organic Fertilizers for Soil Fertility Improvement, examines biological
processes that can enhance the soil fertility. The second section,
Improving Fertilizer Recommendation and Efficiency, looks at the
state-of-the-art in leaf sampling and analysis.