World Bank Technical Paper No. 264. Past research into tree planting has revealed that inadequate attention is given to root development in seedling containers. This study recommends the development of a high quality potting mediato give plants the

Methyl bromide, a potent pest control chemical, was identified as an ozone depleting substance (ODS) in 1972. The phase out of this toxic chemical presents a special challenge. To replace methyl bromide, users around the world must have access to reliable and useful technical information. This publication was produced by the United Nations Environment Programme to promote the methyl bromide phase out. It allows the reader to carefully and thoroughly assess many available alternatives and decide on the best option for their situation. The publication also provides addresses of suppliers and specialists in alternatives; references and websites; and contacts for implementing agencies.

The present text, aligning with the course curriculum of B.Tech. (Agricultural Engineering) as recommended by the Fifth Dean's Committee Report of ICAR, delves into key topics such as the theory, importance, and applications of Protected Cultivation, Greenhouse concepts and classifications, Design and Construction considerations, and the intricate details of Greenhouse Micro-climate. From exploring various Growing Media for Greenhouse Crops to delving into advanced Precision Farming Techniques including Polytunnels, Shade Nets, Plastic Nets, and Plastic Mulching, this book serves as a comprehensive resource for students. The book also covers essential aspects like Greenhouse Irrigation Methods, Drip and Micro- Sprinkler System Design, Fertigation for Greenhouse Crops, and Water Quality considerations. In addition, the book addresses crucial aspects of Insects/Pests and Disease Management, providing practical insights for successful cultivation. Each chapter is thoughtfully structured with proper illustration to enhance the reader's understanding. The inclusion of solved examples at appropriate places ensures a clear grasp of the subject matter. The text further supports learning with a variety of descriptive type and multiple-choice type questions. TARGET AUDIENCE • B.Tech. (Agricultural Engineering) • B.Sc. (Hons) Agricultural Sciences

Mycorrhizal symbioses are widespread and fundamental components of terrestrial ecosystems and have shaped plant evolution. Features such topics as plant/fungal communication, the interaction of mycorrhizal fungi with other soil microorganisms, and the use of mycorrhizal fungi in plant-production systems.