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Effect of nitrogen fertigation on tomato crop utilizing good and marginal quality water through drip irrigation

KrishiKosh

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Title Effect of nitrogen fertigation on tomato crop utilizing good and marginal quality water through drip irrigation
 
Creator Narender Kumar
 
Contributor Jhorar, R.K.
 
Subject Irrigation, Fertigation, Yields, Vegetables, Nitrogen, Trickle irrigation, Planting, Water quality, Fruits, Crops
 
Description Proper management and use of water and fertilizers is of paramount importance for crop production.
Drip irrigation method is known to have better water use as well as fertilizer use efficiency as
compared to other methods of irrigation, particularly if poor quality water is to be used. This study was
conducted to examine the effect of nitrogen fertigation on tomato crop (variety: Hisar-Arun) utilizing
good and marginal quality water through drip irrigation. Experiments were conducted in micro plots (2
m x 2 m size) at Research farm of CCS Haryana Agricultural University, Hisar, India. Irrigation for
good quality (EC ≤ 0.5 dS m
-1
) and marginal quality (EC - 2.5 dS m
-1
) water was scheduled on
alternate day. The volume of irrigation water applied per plant during an irrigation event was calculated
based on crop spacing, pan evaporation, crop coefficient and per cent shaded area. A total of 948.4 liter
of water was applied to each micro plot during the entire crop period. Three doses of nitrogen
fertigation (75, 100 and 125 % of the recommended dose of nitrogen, RDN) were applied. FYM @ 8
kg per plot, 1/3rd of nitrogen, 100% of P and K was applied before transplanting the tomato.
Remaining dose of nitrogen was equally split in 11 doses at weekly interval. The temporal and spatial
variation of soil moisture and soil salinity was observed through regular soil sampling. The moisture
content in the 60 cm soil profile was higher under irrigation with marginal quality water as compared to
irrigation with good quality water. Irrigation with marginal water quality led to more rapid
accumulation of salts in the soil at the horizontal distance of 20 cm distance than that observed for
irrigation with good quality water. Maximum tomato yield (615.3 q ha
-1
) and water use efficiency
(25.95 kg m
-3
) was obtained with good quality irrigation treatment receiving N-fertigation at the rate of
125 % of RDN. Maximum nitrogen use efficiency (594.9 kg kg
-1
) was obtained with good quality
irrigation treatment receiving N-fertigation at RDN. Minimum tomato yield (389.5 q ha
-1
) and water
use efficiency (14.27 kg m
-3
) was obtained with marginal quality irrigation treatment receiving Nfertigation at the rate of 75 % of RDN. Maximum nitrogen use efficiency (594.9 kg kg
-1
) was obtained
with good quality irrigation treatment receiving N-fertigation at RDN. Minimum nitrogen use
efficiency (404.3 kg kg
-1
) was obtained with marginal quality irrigation treatment receiving Nfertigation at 125 % of RDN.
 
Date 2016-10-24T08:33:37Z
2016-10-24T08:33:37Z
2015
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/81413
 
Language en
 
Format application/pdf
 
Publisher CCSHAU