Providing good quality and quantity of water to grape nursery plants at appropriate time is important for production of healthy planting material. Reclaimed.

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Presentation transcript:

Providing good quality and quantity of water to grape nursery plants at appropriate time is important for production of healthy planting material. Reclaimed water can be a sustainable source for irrigation requirements of grape nursery. Irrigation scheduling is the scientific management of irrigation water based on crop water requirement under different soil and agro climatic conditions with an objective to maximize the water use efficiency. Amount of irrigation varies with the nursery growth stages of the plants. Introduction:

A Healthy In Situ Grape Nursery In Situ Grape Nursery in healthy condition

Water requirement of Grape Nursery Sr.Water RequirementGrowth Stages Root stock Nursery (Dogridge B, 110 R ) days1 irrigation/week (depend on rainfall) days1 irrigation/week (depend on rainfall) 360- till transplanting1 irrigation /15 days (depend on rainfall) In situ Nursery (Thompson seedless, Tas e Ganesh, Sonakka, Sharad Seedless, Flame Seedless, Red Globe, Jumbo Seedless) 1April to June (till rains)1 irrigation /week 2July to October1 irrigation/15 days (depend on rainfall) 3November to January1 irrigation /week

Signs of Moisture Stress: Moisture stress and high temperature affects the nursery plant growth. Under mild moisture stress plant exhibit leaf curling symptoms and under severe moisture stress result in reduced shoot growth, thickness, inter nodal length and leaf size. Prolonged moisture stress results in premature leaf fall and the cane exhibits false maturity symptoms. In case of vigorous grape varieties and rootstocks it is necessary to control shoot vigour so as to produce balanced growth through irrigation management. Due to excessive irrigation in heavy soils causes major physiological problems in soil.

Reclaimed Water: Reclaimed water, also known as recycled water, is water recovered from domestic, municipal and industries which has been treated to standards that allow safe reuse. Properly reclaimed water is typically safe for most of the uses except human consumption. Such water has higher levels of Chloride, Sodium, Calcium and pH, nitrate and phosphorus. Need of using Reclaimed water: The demand for fresh water is growing and the resources are getting scarce. Use of reclaimed water can reduce pressure on potable water. Reuse can also help reduce pressure on ground water being extracted.

Considerations for Use of Reclaimed Water 1.Guidelines regarding storage of recycled water must be strictly followed. 2.Irrigation scheduling should be adjusted as per the water storage capacity of container and supply from water treatment plant. 3.The water quality of reclaimed water must be regularly monitored and corrected. 4.Good rapport must be set up with the treatment plant staff for proper quality and timely availability of water for nursery.