Comparison of Fertigation with Surface Broadcast Fertilizer Method in Water, Fertilizer Use Efficiency, Yield, Compenent Yield of Corn and Losses of Nitrogen

آب و خاک

Article 13, Volume 26, Issue 5, November 2012, Pages 1181-1189   

Document Type: Research Article

DOI: 10.22067/jsw.v1391i0.17046

Authors

A. Mohseni^* ; H. Mirseyed Hosseini; F. Abbasi

Abstract

Fertilizing method plays an important role in fertilizer and water use efficiency and plant yield and losses fertilizer. A field experiment was carried out at 16 treatments with factorial a complete randomized block design during 2010 for free drainage furrows. First factor was four levels of water (60, 80, 100 and 120% of full irrigation) and second factor was four levels of fertilizer (0, 60, 80 and 100% of required fertilizer) for fertigation method. The 16 treatments mentioned above, were compared with common fertilizing method. Nitrogen requirement was applied in four stages of the growth: before cultivation, in seven leaves, shooting and earring stages, the first portion (before cultivation) was applied by manual distribution and others by fertigation. In conventional treatment, the whole of required fertilizer was used in two split applications (before planting and in seven leaves). Results showed, the highest yield, yield component and use efficiency of corn was obtained on 100% irrigation and 100% fertilizer treatments. While the highest amount percolation of nitrate into soil was related to conventional treatment.

Keywords

corn; furrow irrigation; Nitrate; Surface ‎ Broadcast; Water use efficiency