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A field experiment was conducted to evaluate the effectofan assembling and modify combine equipment which used for mechanical and chemical cultivation and spraying fertilizer, on some machinery indicators, some soil properties and Sun flower yield in the College of Agriculture / University of Baghdad field during the spring summer growing season of 2016. Three levels of machinery speed included: 6.8, 4.51and 2.85 Km.hrˉ1 and cultivation treatments included: mechanical chemical cultivation and spraying fertilizers, mechanical and chemical cultivation, mechanical and spraying fertilizers and control treatment were studied in this experiment. Field efficiency, soil moisture content, Plant height, plant yield,weed control percentagewere measured in this experiment. Nested designs under randomized complete block design (RCBD) with, three replications were used in this study. Least significant difference at 0.05 probabilities was used to compare the mean of the treatments. The results showed that increasing machinery speed from 2.85 to 4.51 to 6.8 Km.hrˉ1 led to a significant increase insoil moisture content stood 17.31 to 18.38 to 18.82 %, plant height stood 131.26 to 133.03 to 136.88 cm, plant yields stood 7.34 to 8.05 to 8.52 ton.haˉ1,weed control percentage stood 83.68 to 89.81 to 91.53 %. Decreasing machinery speed from 6.8 to 4.51 to 2.85 Km.hrˉ1 led to a significant increase in field efficiency stood 61.71 to 62.62 to 64.75 %. Mechanical, chemical cultivation and spraying fertilizer treatment was significantly superior on other treatments in soil moisture content, plant height and plant yield. Mechanical and chemical cultivation treatment was significant superior in increasing weed control percentage. There was no significant effect in field efficiency by cultivation treatments. There were significant differences on the studied properties attributed by the interaction treatments. 6.8 Km.hrˉ1 and mechanical, chemical cultivation and spraying fertilizer cultivation interaction caused significant increase in soil moisture content stood 18.91 %, plant height stood 137.88 cm and plant yield stood 8.99 ton. haˉ1. 6.8 Km.hrˉ1 and mechanical and chemical cultivation treatment caused significant increase in weed control percentage stood 92.33 %. There were no significant differences on field efficiency, due to interferences treatments. There were significant differences between cultivation treatments and the control treatment. Mechanical chemical cultivation and spraying fertilizer was significant superior in soil moisture content stood 18.25 % on control treatment which got17.76 %, mechanical and chemical cultivation and spraying fertilizer treatment got the best plant height stood 134.58 cm, while control treatment got 127.00 cm,mechanical and chemical cultivation andspraying fertilizer treatment got the best plant yieldsstood 8.54 ton.haˉ1 while control treatment got 6.68 ton.haˉ1, mechanical and chemical cultivation treatment got the best weed control percentage stood 89.44% while control treatment got 6.66%. The locally assembled,manufactured and modified combine equipment was successfully used for mechanical chemical cultivation and sprayingfertilizer with high efficiency.

The Effect of an Assembling and Modify Combine Equipment on Some Machinery Unit Indicators and Sunflower Yield