eprintid: 10302
rev_number: 11
eprint_status: archive
userid: 1305
dir: disk0/00/01/03/02
datestamp: 2017-11-22 05:25:54
lastmod: 2017-11-22 05:26:52
status_changed: 2017-11-22 05:25:54
type: conference_item
metadata_visibility: show
creators_name: Wekha, N W
creators_name: Korir, N K
creators_name: Ojulong, H F
creators_name: Gweyi-Onyango, J P
icrisatcreators_name: Ojulong, H F
affiliation: Kenyatta University (Nairobi)
affiliation: ICRISAT (Nairobi)
country: Kenya
title: Phosphorus influence on nitrogen uptake, nutrient and yield attributes of finger millet in semi-arid region of Kenya
ispublished: pub
subjects: S1.5.2
subjects: s28
subjects: s65
divisions: CRPS5
full_text_status: public
pres_type: paper
keywords: Phosphorus influence, nitrogen uptake, finger millet
abstract: An understanding of P efficiencies of finger millet is very important
in soil management and selection of varieties adaptable to
P-deficient soils. Therefore, on-station experiments were conducted
at the ICRISAT-Kiboko research station to evaluate the
effect of differential levels of P on nitrogen uptake, nutrient content
and yield. There were four P levels (0, 12.5, 25 and 37.5 kg
ha-1 P2O5) and three varieties (U-15, P-224 and Ekalakala). Ekalakala
was the local check while 0 kg/ha P2O5 was the control. The
trial was laid out in a randomized complete block design in factorial
arrangement with three replicates. Soil analytical results
showed moderately available P but very low N, organic carbon
and zinc. Significant differences (P<.05) were observed between
the phosphate levels on the nitrogen contents, where the control
had the lowest with 4.95% and 4.90% for the short and long
rains respectively; while the 25 kg ha-1 P2O5 rate had the highest,
with 5.66% in the short rains and 5.14% in the long rains. The
protein content significantly increased with phosphorus application,
peaking at 11.00 g/100 g on the 25 kg ha-1 P2O5treatment.
The newly released variety (U-15) responded positively to P
supplemented at 25 kg ha-1 P2O5 , with a maximum grain yield of
3,410 kg ha-1. It can, thus, efficiently utilize N in soils with low N
and is highly recommended. The application of P beyond 25 kg
ha-1 P2O5 would not be translated into profitable yields, but losses
to the farmer.
date: 2017-02
date_type: published
pagerange: 188
event_title: InterDrought-V
event_location: Hyderabad, India
event_dates: February 21-25, 2017
event_type: conference
refereed: TRUE
related_url_url: http://idv.ceg.icrisat.org/wp-content/uploads/2017/02/Abstract_Book_Final.pdf
related_url_type: org
citation:   Wekha, N W and Korir, N K and Ojulong, H F and Gweyi-Onyango, J P  (2017) Phosphorus influence on nitrogen uptake, nutrient and yield attributes of finger millet in semi-arid region of Kenya.  In: InterDrought-V, February 21-25, 2017, Hyderabad, India.     
document_url: http://oar.icrisat.org/10302/1/Abstract_Book_377.pdf