Abstract
The study aimed at estimating the optimum use levels of seeds, fertilizer, machinery and manual work resources involved in producing Coker 310 and Asur classes of cotton depending on field data, season 2001-2002 and for the sample, consisting of 72 farmers in Nimrod district/Ninevah governorate. The risk impact on the optimum levels were studied, because the economic studies that ignore risk in solving the rain-dependent cultivation problems recommend levels, which exceed the levels of the use imposed by risk. When we compare the optimum levels of production resources under the risk conditions, we observe that they are smaller under certainty conditions. For the class Coker 310, levels were 1.41% for seeds, 13.82% for fertilizers, 3% for machinery and 9.59% for the manual work. The same were for the class Asur as risk leads to the decrease of use levels with the rates; 1.59% for seeds, 13.59% for fertilizers, 2.63% for machinery and 7.31% for the manual work. Results indicated that the class Asur led to decrease the optimum use of seeds and manual work resources, and increased the optimum use of fertilizers and machinery resources compared to the class Coker 310. It is clear that risk-reluctant farmers will respond to the risk conditions they encounter by decreasing the use levels of the resources to the minimum. This requires decreasing cotton production resources to decrease the economic loss accompanies that.
