Crop Weather Calendar: A Guide to the farming community


The pictorial representation of detailed information for a crop with respect to its sowing period and the duration of important phenological stages during its entire life cycle, the optimum climatic requirement during different stages of the crop and the actual and normal weather for that location/region is called the Crop Weather Calendar.

The Crop Weather Calendar is mainly divided into three sections:-

Upper –  N Normal monthly rainfall, total number of rainy days with weather requirements

Middle – Typical life history of the crop, from sowing to the period of maturity

Bottom – Weather conditions favorable for incidence of pests and diseases and the nature of the weather warnings that can be given

Prepared against Months and Standard Meteorological Weeks according to the specific crop growing season

 Structure of crop weather calendar

The crop weather calendars allow the weather forecasters to visualize the type of weather warnings that need to be issued to the farmers at a specified point of time/real time and for a given location/region. The information is for a particular phase of the crop in a given set of weather conditions. Most of the farmers are unable to utilize the weather information properly; hence the Agromet Field Units and District Agromet Units are setup by joint initiative of IMD & ICAR, prepares agromet advisories at District and Block level, these AMFUs and DAMUs prepares Crop Weather Calendars for important crops and various varieties through research and development based process at District and Block/Panchayat level. Which plays important role in improving the quality of medium range weather forecast based agromet advisory services.  

Usefulness of Crop Weather Calendar for farming community

The crop weather calendar helps inform farmers about the effects of unfavorable weather (viz. drought occurrence, unexpected rains, cold waves, terminal heat etc.) on particular crop/variety. If the information pertaining to the possible condition of temperature, rainfall and humidity is transmitted well in advance among the farming folk, then measures can be adopted to minimize the crop losses. The temperature, amount of rainfall and humidity required by a crop is phase specific. The crop productivity may fall significantly if there is much variation in weather as compared to the standard values mentioned in the calendar. This is possible because, under these circumstances, the chances of major disease and pests in the crop are likely to become more and at the same time we need to adopt appropriate measures to reduce crop losses.

Commendable efforts are in operation, effectively, by the team of scientists/experts under the Gramin Krishi Mausam Seva scheme and issues estimates of weather warnings on every Tuesday and Friday in advance to the group of farmers, at District and Block level, so that appropriate measures can be adopted like use of insecticides, pesticides, herbicides and follow other agricultural practices in view of weather information. In this way, the crops can be saved as well as the cost/expenditure losses can also be minimized. Hence, it is extremely important for the farmers, to have a look on such information regularly, and always remains updated. Thus, a single sheet of paper (The crop weather calendar) which contains summarized information with respect to crop-weather, possibilities of appearance of pest/disease, can be very useful for the farmers and its end users for taking appropriate measures.




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