Crop Coefficient Regionalization for Irrigated Agriculture Planning in Maranhão State -Brazil

Abstract

Irrigated agriculture has emerged as a necessary technology to achieve greater productivity, mainly by supplying the water requirements of agricultural crops in critical periods, especially for those regions where natural rainfall is insufficient to meet these requirements. The daily water consumption of crops is strongly influenced by local weather conditions, which justifies the need for regionalized studies of the parameters influencing the water depth to be applied. The crop coefficient (Kc) is perhaps the most important parameter because it interferes directly with the crop water requirements. This index must be determined for each region, thus avoiding the use of reference values meant for other climatic conditions, causing loss of productivity The present study aimed to estimate the local crop coefficients for corn (Zea mays L.

Effects of plant spacing on evapotranspiration for estimating crop coefficient of Japonica rice

“…Determining crop coefficient (Kc) is significant for various reasons in agricultural practices. Kc values are specific to different crops and growth which helps in determining crop water requirements [15]. Daily Kc was estimated in Figure 14 2.…”

“…Rice has the highest Kc values compared to other crops [20] partly because of the high-water consumptive nature of rice. Kc estimation provides valuable information for determining crop water requirements, and for irrigation planning and management [12,15].…”

Water Requirement of Naked Oats under Subsurface Drip Irrigation in the North Foot of Yinshan Mountain Based on Single Crop Coefficient Approach

“…It is an important parameter for the differences between the water requirements of different crops and the water requirement of the reference crop. On account of different growth and development characteristics, crops in different varieties have quite different characteristics in water requirements in different growth stages [2][3][4][5][6][7][8].…”