Effect of supplemental nutrition of nitrogen in some growth characters of corn (variety el-maha) under drip irrigation system
DOI:
https://doi.org/10.54153/sjpas.2021.v3i2.205Keywords:
Supplemental nutrition ,nitrogen , maize , foliar spraying, addition to soilAbstract
A field experiments was conducted in autumn season 2019 in a field in of Sabtiyah / Diyala.The aim of experiment to study effect of supplemental nutrition of nitrogen in some growth characters. Spraying 4 concentrations of N (0،2000،1000،3000) mg. L-1 and addition to soil 3 levels of N (0،100،200) Kg.h-1. The results showed that foliar spraying superior in more characters than addition to soil, the suitable was 3000 mg N.L-1 in 50% anthesis, 50% silking , and leave area. It in order to 55.568 day, 61.067 day and 53.609 dm2 respectively. While using was 2000 mg N.L-1 caused increased in plant height and number of leaves, it in order to 190.916 cm and 14.614 leaf. As well the results showed that superior addition of N to soil was 200 Kg.h-1 in all characters compared with 100 Kg.h-1, it caused increased In 50% anthesis , 50% silking, plant height , number of leaves and leave area , it in order to 56.088 day ,60.662 day, 189.377 cm,14.543 leaf and 49.742 dm2. The interaction was significant effect in all traits compared with control.
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