| چکیده انگلیسی مقاله |
Weather plays vital role in growth, development and yield of Crop. Weather changes with time and space. Erratic weather is beyond human control. Location specific timely weather forecast based advisory helps farmers to make day to day decision in all agricultural operations viz. crop planning etc. irrigation scheduling, application of fertilizer, insecticide as well as plant protection chemicals which assures reduction in crop losses and efficient use of input including water. Rice is one of the water intensive crop. The rise in population has led to an increase in its demand and in turn escalating the amount of water required for its irrigation. Conventional method of cultivation needs 3,000 to 5,000 liters of water to produce a kilo of rice. Also the rain water use is free of cost and saves cost of fuel as well as labour employed in irrigation. The combination of irrigation and rainfall can reduce rice farmers need for irrigation water, enhance grain production, and assist in alleviating food and water shortages in rice producing regions. The present study was conducted keeping in view to cope up with increasing threat of water scarcity conditions. Weather forecast value added by Met Centre Srinagar after issued by India meteorological department since 2015 was compared with actual weather data recorded at Agrometerological Observatory AMFU-Chatha for the same duration to assess the validity and accuracy of rainfall. Various test criteria were used to test the reliability and accuracy of the forecasted rainfall. Further accuracy and its usability in terms of saving irrigation in rice crop was studied. The forecast was 67.3% accurate during the year 2015 and 2016. 70.66, 60.83, 62.9 and 7.19 % accuracy was observed during the year 2017, 2018, 2019 & 2020 respectively. 4 irrigations were saved during the year 2015, 2016. 3 irrigations were saved during 2017, 2018, 2020 and 5 irrigations were saved during 2019. |
