Introduction: The need for food in the human security due to increasing population and improving food security is, increasing at with high speed, providing this basic need and solving the challenges related to it requires all-out effort and prevention in the field of optimal use of the existing institutions and potentials of the agricultural sector in countries like Iran ,which are in dire strait in terms of some resources such as water, the need to use the existing potentials in the agricultural sector becomes even more important. One of the most important obstacles and major problems in the agricultural sector in developing countries is the fragmentation and scattered of agricultural land, which in addition to increasing production costs, reduce productivity and creates waste in the facilities used .Increasing the awareness of farmers about the economic and social results and the consequences of the effects of land consolidation is mainly based on the support programs of the government and the relevant organization and this regard ,farmers  should be Justified as to why small lands are used in terms of labor force, access to credit, proper production and product market They do not have the necessary work. Integration in order to achieve sustainable use of land resources dose not only pay attention to the amount of agricultural land in order to create balance and integrity of land, but also includes other aspects such as improving the quality of land and restoring environmental conditions. Despite the increase in wheat production in Iran, there is still a need to important between 4-7 million tons depending on the annual production fluctuations. Optimal use of Agricultural lands and inputs to supply strategic crops such as wheat is one of the most important goals of sustainable agricultural development and creating food security in the country. Land integration is one of the important factors in terms of better management of production and increase in land use. Agriculture in small and micro-exploitation units due to problems related to the optimal use of new technologies and methods limits production efficiency. The purpose of this study is to investigate the effect of field size on wheat yield.
Materials and Methods: The required information has been collected through 150 questionnaires in a two-stage cluster in the period 2021-2022. From Dashtkar region in Kerman province. In the Translog function, Qi is the amount of wheat production in tons, Land_i is the input of land in hectares, Water_i is the volume of water consumed in cubic meters, Fer_i is the input of urea fertilizer in kilograms, Labor_i is the input of labor in person-days, ε_i is the disturbance and DSi is the virtual variable of size, which is the order of one value is given for farms with a size of more than 5 hectares and zero value for other farms. In the Translog model, production elasticity is used to check the relationship between the inputs.
Results and Discussion: The results showed null hypothesis of non-significance is rejected; Therefore, the translog function is a suitable function for estimating the production function. In addition, the adjusted coefficient of determination shows the high explanatory power of the explanatory variables. In this way, if there is a one percent increase in cultivation, the amount of wheat production will decrease by -2.83 percent. The negative coefficient of the earth's logarithm is indicative of this; But the square coefficient of the land logarithm is negative (-0.38), which means a non-linear and convex relationship (inverted U shape) between the land size and the amount of wheat production. In other words, with the increase in the scale of the land, first the production will decrease and then after a minimum point, it will increase. Therefore, it can be said that the integration of agricultural lands and the increase of the cultivation area will increase the total amount of production. The results showed that the size of the fields has a significant effect on the yield. Due to the abundance of land under wheat cultivation and the number of small and scattered land in the country, it is suggested to use various methods such as increasing farmers awareness, Development of roads between farms, developing cooperatives and allocating the necessary funds to encourage farmers and promote land integration.
Conclusion: Based on the results of this research, it was found that land and urea fertilizers play a synergistic role in production. In other words, if land and urea fertilizers are used together optimally, they will lead to a further increase in production. Also, the variables of water consumption, labor force, land square, water consumption square and user force square were effective in wheat yield in Kerman. Due to the large number of small and scattered lands in the country, especially Kerman, it is suggested to use various methods such as raising the awareness of farmers, developing roads between farms, developing cooperatives and allocating the necessary credits to encourage farmers to develop land integration.