Hydroponics - Indoor Horticulture represents an educational, in-depth, up-to-date, indoor horticultural growers guide that covers all principles of indoor hydroponic horticulture and gardening. This book contains 110,000 words, with over 300 diagrams, pictures, illustrations, graphs, tables, 3 dimensional CAD renderings, and is printed in full colour.

Hydroponics - Indoor Horticulture examines, explores, dissects and presents a fully comprehensive step by step growers guide, relating to all and every aspect of indoor hydroponic horticulture, with complete chapters on plant biology, propagation, hydroponic systems, nutrients, oxygen, carbon dioxide enrichment, pH, biological pest control, fungi/disease, cuttings/clones, pruning/training, breeding, harvesting, equipment, grow rooms, a full history of hydroponics, and more.

This book goes further than any indoor growers guide has gone before, presented in full colour with 3 dimensional CAD renderings. Hydroponics - Indoor Horticulture quite simply outclasses any other book on the subject... In terms of literal content, quantity, quality and presentation, no other indoor horticulture growers guide can compete, let alone compare.

What follows is various and very useful information for reference purposes when constructing and maintaining your grow room.

Lineal Measurements

Lineal Measurements

Common Use Imperial
· 12 inches = 1 foot
· 3 feet = 1 yard
· 1760 yards = 1 mile

Other Imperial Values
· 12 inches (ins or “) = 1 foot (ft or ‘)
· 3 feet = 1 yard (yd)
· 22 yards = 1 chain (ch)
· 10 chain = 1 furlong (fgs)
· 8 furlongs = 1 mile (mi)

Common Metric Measure
· 10 millimetres (mm) = 1 centimetre (cm)
· 1 metre (mtr) = 1000 millimetres
· 1 metre = 100 centimetres
· 1000 metres = 1 kilometre (km)

Conversions
· 1 inch = 25.4 millimetres
· 1 inch – 2.54 centimetres

· 1 foot = 304.8 millimetres
· 1 foot = 30.48 centimetres
· 1 foot = 0.3048 metres

· 1 yard = 9144 millimetres
· 1 yard = 914.4 centimetres
· 1 yard = 0.9144 metres

· 1 mile = 1609.34 metres
· 1 mile = 1.60934 kilometres

· 1 millimetre = 0.03937 inches
· 1 centimetre = 03937 inches
· 1 metre = 39.37 inches
· 1 metre = 3.28084 feet
· 1 metre = 1.0936 yards
· 1 kilometre = 39,370 inches
· 1 kilometre = 3280.84 feet
· 1 kilometre = 1093.613 yards
· 1 kilometre = 0.621317 miles

Area Measurements

Common Use Imperial
· 144 sq ins (sq”) = 1 sq ft (sq’)
· 9 sq’ = 1 sq yd
· 4840 sq yds = 1 acre
· 640 acres = 1 sq mile

Common Metric Measure
· 10 mm2 = 1 cm2
· 10,000 cm2 = 1 m2
· 1,000,000 m2 = 1 hectare (h)

Conversions
· 1 sq in = 6.45160 cm2
· 1 sq ft = 0.09290 m2
· 1 sq yd = 0.83613 m2
· 1 acre = 0.40469 h
· 1 sq mile = 2.58999 km
· 1 cm2 = 0.155 sq”
· 1 m2 = 10.76391 sq’
· 1 m2 = 1.19599 sq yds
· 1 h = 2.47105 acres
· 1 km2 = 0.38610 sq miles