1. Introduction Greenhouse plant production systems include the nutrient delivery system, and the plant culture management technique, that are enclosed within a controlled environment. The foundation of all plant production systems is the effective, efficient and dependable means of nutrient delivery. This system must be compatible with the management technique. The specific plant culture manag...

The water use efficiency under conventional flood method of irrigation, which is predominantly practised in Indian agriculture, is very low due to substantial conveyance and distribution losses. Recognizing the fast decline of irrigation water potential and increasing demand for water from different sectors, a number of demand management strategies and programmes have been introduced to save wa...

ment, TR-21 was generally recognized to be applicable to areas receiving low intensity rainfall, and to soils that Effective rainfall (ER) is the portion of total rainfall that plants have high infiltration rates (Dastane, 1974). The data use to help meet their consumptive water requirements, and is an important component of water resource budgeting for irrigation. The used to develop the ER eq...