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Modeling of nitrate transport in microirrigation fertigation in garlic (Allium sativum L.)

KrishiKosh

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Title Modeling of nitrate transport in microirrigation fertigation in garlic (Allium sativum L.)
Ph.D.
 
Creator SIVASAKTHI S
 
Contributor Manoj Khanna
 
Subject Nitrogen, Microirrigation, fertigation, Yield, Mineral estimation.
 
Description T-8759
Nitrogen is among the most important nutritional element in garlic and other
crops and actively acts in numerous metabolic processes. A field experiment was
carried out during the year 2008 to 2010 to study the yield and quality of the garlic in
response to four levels of nitrogen (0, 40, 80 and 120 Kg N ha-1) and two methods of
microirrigation fertigation. Two methods of microirrigation i.e. drip (point source)
and microsprinklers (disk source) were used as irrigation methods. Treatments were
allocated in randomized block design and replicated thrice. The results indicated that
garlic yield under drip irrigation system was 7.22 t ha-1 in first year and 5.418 t ha-1
second year. This was higher than the micro sprinkler system (2.874 t ha-1, 2.874 t ha-
1) for both the years. On an average, garlic yield increased progressively and
significantly up to 80 kg N ha-1, afterwards, there was a reduction in the yield. The
interactive effects between method of irrigation and nitrogen application were found
significant during both the years of experimentation. Nitrogen application up to 80 kg
N ha-1 with drip irrigation increased the yield. But the treatments with no nitrogen
applied (N0) and 40 kg N ha-1 with microsprinkler did not increase the yield.
However, 80 kg N ha-1 with microsprinkler significantly increased the garlic yield
during both the seasons. The data on quality parameters suggested that 80 kg N ha-1
with drip irrigation was the best treatment.
Key words: Nitrogen, Microirrigation, fertigation, Yield, Mineral
 
Date 2016-08-26T13:40:03Z
2016-08-26T13:40:03Z
2012
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/73877
 
Format application/pdf
 
Publisher IARI, WATER TECHNOLOGY CENTRE INDIAN AGRICULTURAL RESEARCH INSTITUTE NEW DELHI