Hello, I am an agricultural researcher, I implemented a plan with these specifications This experiment was carried out in the form of twice-chopped plots based on a randomized complete block design in three replications in the farm of Tehran University's School of Agriculture and Natural Resources in two cropping years. The main factor of lack of irrigation in three levels: (100%), 85% , 70% ., the planting pattern of the secondary factor in five levels (pure cultivation of buckwheat, pure cultivation of cowpea, three levels of mixed cultivation) Buckwheat and cowpea including planting rows 25 B -75 C, 50 B -50 C , 75 B - 25 C are The secondary factor is weeding times in five levels (no weeding (control), weeding in the second week of growth, weeding in the fourth week of growth, weeding in the sixth week of growth and weeding in the eighth week of growth). Next, I entered my data into Excel and I want to draw beautiful graph, thanks