Dynamics of Nitrogen under Sub Surface Drip Fertigation System on Banana cv. Rasthali | Chapter 08 | Advances in Applied Science and Technology Vol. 7
Nitrogen (N) is needed for all growth
processes, as it is the major component of amino acids, which are the building
blocks of proteins, enzymes and the green pigment chlorophyll. Chlorophyll
converts sunlight energy into plant energy in the form of sugars and
carbohydrates. The sub surface drip fertigation is a technique to apply both
water and fertilizers through drip irrigation system during the recent years
were shown to be very effective in achieving higher water and fertilizer use
efficiencies. The nutrient mobility study revealed that fertigation treatments
maintained higher concentration of available nitrogen around root zone of
banana compared to surface irrigation with soil application of recommended dose
of fertilizers where most of the nutrients moved to deeper layer due to
leaching fraction of applied fertilizers. In general, subsurface drip
fertigation of 100 per cent RDF treatments in combination with liquid
biofertilizers maintained higher available NPK in the post-harvest soil
compared to surface irrigation with soil application of recommended dose of
fertilizers. Further, drip fertigation integrated with liquid biofertilizers
created favorable condition for multiplication of beneficial micro-organisms in
the rhizosphere region.
Author(s) Details
Author(s) Details
Dr. M. Yuvaraj
Department of Soil Science
and Agricultural Chemistry, Adhiparasakthi Agricultural College,
Kalavai-Vellore, India.
Prof. Dr. P. P. Mahendran
Department of Soil Science
and Agricultural Chemistry, Agricultural College and Research Institute,
Madurai, India.
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