ISHS Acta Horticulturae 662: VII International Symposium on Temperate Zone Fruits in the Tropics and Subtropics
PERFORMANCE EVALUATION OF DIFFERENT IRRIGATION SCHEDULING METHODS FOR PEACH THROUGH EFFICIENT FERTIGATION SYSTEM NETWORK |
| Authors: | M. Hasan, N.P.S. Sirohi, V. Kumar, M.K. Sharma, A.K. Singh |
| Keywords: | fertigation, irrigation scheduling, evapotranspiration, peach |
| Abstract:
The fully automated fertigation system network resulted in saving of water up to 40%, fertilizer up to 30% and having healthy plants. The fertigation system network included well designed drip irrigation system, matching hydraulic fertilizer pump, filters, hydraulic components, valves and controller. Irrigation scheduling consisted of two important parameters known as crop water requirement and irrigation interval. Comparison were made between two most important and simple method for irrigation scheduling known as pan evaporation method and the other method based on physical properties of soil. Simple mathematical model was used in both the formulas to calculate different component of irrigation scheduling. The soil based physical property method was found to be more accurate for the field condition after cross checking with tensiometers installed in the fields. Pan evaporation method was found to be more simple and easy to use than other irrigation scheduling methods. The major limitation in pan evaporation method was the lack of information regarding the value of crop coefficient for different stages of the plant and in other method the lack of information regarding the varying root zone depth of the crop at different stages. The data base related to weather parameters, crop coefficient, soil physical properties and root zone depth of the crop was needed to calculate location specific irrigation scheduling for different fruit crops. | |
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