Authors :
O. B. KUYE; N. K. DEDAN
Volume/Issue :
Volume 7 - 2022, Issue 5 - May
Google Scholar :
https://bit.ly/3IIfn9N
Scribd :
https://bit.ly/3yA1itd
DOI :
https://doi.org/10.5281/zenodo.6787642
Abstract :
This study evaluated the effects of methods of
urea fertilizer application and the different irrigation
methods on yield of green amaranth. This was with the
view to establishing the best combination of urea
fertilizer method of placement and irrigation method for
green amaranth production in Southwestern Nigeria.The
experiment was carried out in two agroecological zones
(rainforest and derived savanna) in the dry season. The
experiment was laid out in Randomized Complete Block
Design with four replicates. The treatments were: (i)
broadcasting + sprinkler, (ii) fertigation + sub-irrigation
(iii) spot + sprinkler, (iv) drilling + sprinkler and
(v)fertigation + sprinkler. Soil samples were collected
from each plot at 0-15 cm depth before and after the
experiment for routine laboratory analyses. The aboveground biomass of green amaranth was harvested and
tissue samples were taken for the determination of dry
matter yield and total tissue nitrogen. Nitrogen uptake,
nitrogen use efficiency and nitrogen recovery of green
amaranth were estimated. The data collected were
subjected to analysis of variance and differences in
treatment means were separated using Tukey test at 5%
level of probability.Dry matter yield and nitrogen uptake
from broadcast were significantly lower than that of subfertigation, spot, drilling and surface fertigatonin both
rainforest and derived savanna zones. Nitrogen use
efficiency and nitrogen recovery efficiency under
broadcast were significantly lower than other fertilizer
application methods in the two locations. The dry matter
yield, nitrogen uptake, nitrogen use efficiency and
nitrogen recovery efficiency were similar under the two
irrigation methods in the derived savanna zone.
However, these parameters were greater (p 0.05) with
capillary irrigation compared to sprinkler irrigation in
the rainforest zone.It was concluded that either subfertigation, spot, drilling or surface fertigation fertilizer
application method was best for optimum yield and
Nitrogen use efficiency of green amaranth. Capillary
irrigation produced better yield and Nitrogen Use
Efficiency in the rainforest than sprinkler irrigation but
not in derived savanna.
Keywords :
Fertigation, Capillary, Dry matter yield
This study evaluated the effects of methods of
urea fertilizer application and the different irrigation
methods on yield of green amaranth. This was with the
view to establishing the best combination of urea
fertilizer method of placement and irrigation method for
green amaranth production in Southwestern Nigeria.The
experiment was carried out in two agroecological zones
(rainforest and derived savanna) in the dry season. The
experiment was laid out in Randomized Complete Block
Design with four replicates. The treatments were: (i)
broadcasting + sprinkler, (ii) fertigation + sub-irrigation
(iii) spot + sprinkler, (iv) drilling + sprinkler and
(v)fertigation + sprinkler. Soil samples were collected
from each plot at 0-15 cm depth before and after the
experiment for routine laboratory analyses. The aboveground biomass of green amaranth was harvested and
tissue samples were taken for the determination of dry
matter yield and total tissue nitrogen. Nitrogen uptake,
nitrogen use efficiency and nitrogen recovery of green
amaranth were estimated. The data collected were
subjected to analysis of variance and differences in
treatment means were separated using Tukey test at 5%
level of probability.Dry matter yield and nitrogen uptake
from broadcast were significantly lower than that of subfertigation, spot, drilling and surface fertigatonin both
rainforest and derived savanna zones. Nitrogen use
efficiency and nitrogen recovery efficiency under
broadcast were significantly lower than other fertilizer
application methods in the two locations. The dry matter
yield, nitrogen uptake, nitrogen use efficiency and
nitrogen recovery efficiency were similar under the two
irrigation methods in the derived savanna zone.
However, these parameters were greater (p 0.05) with
capillary irrigation compared to sprinkler irrigation in
the rainforest zone.It was concluded that either subfertigation, spot, drilling or surface fertigation fertilizer
application method was best for optimum yield and
Nitrogen use efficiency of green amaranth. Capillary
irrigation produced better yield and Nitrogen Use
Efficiency in the rainforest than sprinkler irrigation but
not in derived savanna.
Keywords :
Fertigation, Capillary, Dry matter yield
