FOLIAR FERTILIZATION ON WHEAT TO REDUCE SOIL APPLICATION OF NITROGENOUS FERTILIZER
Date
2014-06
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
HAJEE MOHAMMOD DANESH SCIENCE AND TECHNOLOGY UNIVERSITY, DINAJPUR
Abstract
An experiment was conducted at the research field of Crop Physiology and
Ecology department, Hajee Mohammad Danesh Science and Technology
University, Dinajpur during the period of November 2013 to April 2014 to find
out the effect of foliar fertilization (Magic growth) on performance of wheat and
to calculate how much urea can be saved by foliar fertilization without any yield
reduction. The experiment was conducted in a split plot design with three
replications. Two levels of foliar fertilization of magic growth (Fy: No foliar
fertilization and F,:Foliar fertilization with magic growth) were placed in the main
plots as main plot treatments whereas four nitrogen fertilizer levels (0, 50, 75 and
100% of the recommended nitrogen fertilizer) were placed randomly in the sub
plots as sub plot treatments. Foliar fertilization with magic growth showed higher
plant height, tillers plant’, leaves plant’', plant dry weight at different days after
sowing and flag leaf SPAD value at 85 days after sowing compared to no foliar
fertilization treatment. All the parameters were also increased with the increment
of nitrogen level. Foliar fertilization and increasing nitrogen fertilizer levels
significantly influenced the grain yield of wheat but the increment of grain yield
with the increment of nitrogen levels were not similar both in no foliar
fertilization treatment (Fo) and foliar fertilization treatment (Ff). Increased grain
yield due to different treatment combinations was mainly contributed by
increasing spikes m” and grains spike’! in the respective treatment combinations.
Foliar fertilization with magic growth along with 75% of the recommended
nitrogen fertilizer i.e., F{\N7; provided more or less equal grain yield to that
provided by recommended nitrogen fertilizer treatment only i. ¢. I Njoo. In that
case, 25% of the recommended nitrogen fertilizer can be saved without
considerable yield reduction. Foliar fertilization along with recommended
nitrogen fertilizer (F\Njo9) increased 14.03% grain yield compared to
recommended practice (F oN 199).
Description
Wheat is an important cereal crop and ranks first globally and second in
Bangladesh both in terms of production and acreage (Anonymous 2011). The
consumption of wheat is increasing with increasing food diversity in our country.
It is grown over an area of 3.74 million hectare with an annual production of
about 10 million tons with an average yield of 2.60 t ha (Anonymous 2011).The
average production of this crop in Bangladesh is however low compared to other
wheat growing countries. The yield of a crop depends upon the interaction
between its genetic potential and the environment in which it grows. Full
exploitation of the genetic potential requires optimum fertilizer application.
Nitrogen is an essential plant nutrient and involves in enzymatic reactions, protein
synthesis and is a major component of amino and nucleic acids but it is the most
deficient nutrient (almost everywhere) in Bangladeshi soils (Anonymous 2005).
Therefore, adequate supply of nitrogen is necessary to obtain maximum yield
potential of crops (Mae 1997, Akram et al. 2010).
Keywords
NITROGENOUS FERTILIZER, REDUCE, Sowing