India is an agriculture-based country and Indian agriculture has witnessed a covetable progress during the past days. However, the yield production is not as proportionate as the area of agricultural Fields. Hence, it is challenge for our agricultural sci 1st ed. xii+311p., Tables; Figures; References; Maps; Index; 25cm.

Fishes are the most primitive vertebrate from which all other vertebrates including man has evolved. They are adapted to aquatic life with gills to breathe and fins to move about, although a few species can move on land and breathe air. They show a great 1st ed. xii+344p., Tables; Figures; References; Index; 26cm.

With the advent of improved scientific and technological innovations there has been a spurt in industrial and developmental activities. This has caused enormous strain on environmental resources and dynamism resulting in gross ecological imbalance. In f 1st ed. xi+322p., Tables; Figures; Plates; References; Index; 26cm.