Abstract
Experiment conducted at winter season 2022-2023 at plastic boxes on clay sandy soil in AlDiwanyia. The experiment was design as CRBD with three replications arranged for splitpilot design, in LSD0.05 the main treatment contend two groups one spray(after 25 days of sowing) and two spray(after 25 and 50 day of sowing) within there four levels of CuO Nanoparticles( 0 , 50 , 100 , 200) PPM. I was took sample of soil before planting to analysis it and to learn physical and chemical properties in table (1). Green pea( pisum sativum L.) were sowing at rate 25 kg.ha -1 (3 cm depth of sowing ) at 1/9 , after 5 months I took a samples to measure . The results showed all factors and interactions were significant effect and increased all growth traits (plant content of protein , carbohydrate total Chlorophyll and fats and active substances ,) lead to increased grain yield max values (1.58 Ton.ha -1 ) at interaction of two spray and 200PPM Cu O Nanoparticles level, while min vaule(1.39 Ton.ha -1 ) at interaction one spray and 0 ppm Cu O Nanoparticles level.
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