What is the Length of the Growing Period? How Can it be Calculated?

Abhijeet Modi/ November 7, 2021/ Blog

For the proper growth of crops, it is important for the farmers to implement GIS (geographic information system) into their agricultural practices. The technique is used to provide you with a detailed map of the crop’s growth period, factors influencing the cultivation, and estimated output at the time of the harvesting season. These are quite a few crucial factors that play an integral part in crop growth. The length of the growing period means the total days for while the moisture and water from the rainfall stay within the soil go half of the evapotranspiration. To put it in simple terms, the length of the growing period suggests the period in which there is sufficient moisture or water in the soil that caters to the evapotranspiration needs of any dry land.

That’s how the farmers are assured of the productivity on the dry land. The concept is widely used in the agricultural industry since it helps farmers get a better idea of the output they should expect during the harvest season. There are many methods used to determine the length of the growing period, but the most popular technique that has been gaining immense popularity lately is the implementation of GIS in the agricultural industry. If you have been in this industry for a while now, you must already be familiar with GIS technology and its impact on productivity. The technology can help you detect the condition of the soil, the suitable land for crop cultivation, and most importantly, the area where you should plant the crops for maximum productivity and better output.

How to Calculate?

The remote sensors installed on the farm equipment as well as the satellites give you details about the crop productivity and the suitable land for crop cultivation. One important element that helps identify the length of the growing period in crop productivity is the IMA (Index of Moisture Adequacy). The IMA tells you the ratio of the real to the potential evapotranspiration. The beginning, as well as end season for the length of the growing period for the crop, is calculated based on the Index of Moisture Adequacy.

The beginning period is when the IMA is at least 50% for two weeks in a row. Similarly, it is considered the end of the growing season when the IMA drops below 25% and remains the same for at least two weeks in a row. This information is obtained with the help of GIS, especially the remote sensors on the satellites that collect the data from the agricultural field and presents this information in detailed maps. The remote sensors do not only show the data related to the evapotranspiration as well as the length of the growing period, but this technology has proven to be an effective solution for farmers looking for comprehensive agricultural data. It shows you the best irrigation method for the maximum output, the perfect place to grow crops, and more.

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