Vol. 7, Issue 2 (2019)
Nitrogen use efficiency in African tall fodder maize (Zea mays L.) as affected by nitrogen levels and planting geometry
Author(s): Chanchal Porte, SK Jha and SK Dwivedi
Abstract: An experiment was conducted during Rabi 2017-18 to study the response of agronomic, agro-physiological, apparent recovery, economic nitrogen use efficiency, nitrogen increment efficiency and nitrogen harvest index of African tall fodder maize (Zea mays L.) to nitrogen levels and planting geometry under Chhattisgarh condition conducted at the experimental field of Instructional cum Research farm, Indira Gandhi Krishi Vishwavidyalaya, Raipur, Chhattisgarh. The treatment includes four levels of nitrogen and three planting geometries consisting of twelve treatment combinations laid out in factorial randomized block design (FRBD). Among all the treatment combinations apparent recovery efficiencies decreased to 56.1% with each increase in nitrogen levels from control to 160 kg N ha-1 and planting densities. However, agronomical nitrogen use efficiency increased with increase in N level up to 120 kg N ha-1 and tends to decrease with more increase in N level up to 160 kg N ha-1 and agro-physiological efficiency, economic nitrogen use efficiency, nitrogen increment efficiency and nitrogen harvest index efficiency was increased as 21.6 kg kg-1, 0.73 kg Rs-1, 1.7 kg kg-1 respectively with increase in nitrogen level from control to 160 kg N ha-1 but was unaffected with varying planting geometry.
Pages: 1163-1167 | 365 Views 102 Downloads
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How to cite this article:
Chanchal Porte, SK Jha, SK Dwivedi. Nitrogen use efficiency in African tall fodder maize (Zea mays L.) as affected by nitrogen levels and planting geometry. Int J Chem Stud 2019;7(2):1163-1167.
