Abstract
Field experiment conducted at summer in two season 2020-2021 and 2021-2022 on clay sandy soil in
Al-Diwanyia. The experiment was design as Complete randomized block designing with three
replications arranged for split-pilot design, and Lest Significant Deference's( LSD) 0.05 the main
treatment contend two groups seeds rate 25 and 50 Kg ha
-1 within there four levels of Nano Ca( 0 , 30 ,
60 , 90) PPM I took sample of soil before planting to analysis it and to learn physical and chemical
properties table 1. Cowpea( Vigna unguiculata L.) were sowing at two rates 25 and 50kg.ha
-1
(3 cm
depth) at 1/4 , after 7 months I took a samples to measure . The results showed all factors and
interactions were significant effect and increased all growth traits (plant height, number of leaves per
plant and stem diameter , plant content of protein , carbohydrate total Chlorophyll and fats and active
substances ,) lead to increased grain yield max values (2.72 Ton.ha
-1
) at interaction of 25 seeds rate
and 90 ppm Ca Nanoparticles level, while min value(1.9 Ton.ha
-1
) at interaction 50 seed rate and 0 ppm
Ca Nanoparticles level.
Al-Diwanyia. The experiment was design as Complete randomized block designing with three
replications arranged for split-pilot design, and Lest Significant Deference's( LSD) 0.05 the main
treatment contend two groups seeds rate 25 and 50 Kg ha
-1 within there four levels of Nano Ca( 0 , 30 ,
60 , 90) PPM I took sample of soil before planting to analysis it and to learn physical and chemical
properties table 1. Cowpea( Vigna unguiculata L.) were sowing at two rates 25 and 50kg.ha
-1
(3 cm
depth) at 1/4 , after 7 months I took a samples to measure . The results showed all factors and
interactions were significant effect and increased all growth traits (plant height, number of leaves per
plant and stem diameter , plant content of protein , carbohydrate total Chlorophyll and fats and active
substances ,) lead to increased grain yield max values (2.72 Ton.ha
-1
) at interaction of 25 seeds rate
and 90 ppm Ca Nanoparticles level, while min value(1.9 Ton.ha
-1
) at interaction 50 seed rate and 0 ppm
Ca Nanoparticles level.
Keywords
Cow pea
foliar spray
Nano Ca
seeds rate