Research Article

Response of Bread Wheat (Triticum aestivum L.) to Potassium (K) and Blended NPS Fertilizer Rates in the Nitisols of Southern Ethiopia

Table 5

Growth, yield component, yield, and agronomic efficiency of wheat as affected by NPS and K fertilizer rates at Sodo Zuria, Wolaita Zone, Southern Ethiopia, during 2016.

PHTLANGPSTKWAGBMGYSYAE
cmcmNo.gmt ha−1t ha−1t ha−1kg·kg−1

NPS
091.50e6.24d22.67d35.00c1.983e0.806e0.78d6.5d
5096.50d9.63c31.67c42.92b3.717d1.528d2.050c12.26b
100104.58c12.98ab37.75b45.58ab5.900c2.517c3.107b15.44a
150111.17a14.86a41.58a46.08a7.533a3.242a4.113a14.95a
200109.08b12.30b36.08b44.083ab6.9333b2.832b3.859a10.13c
LSD (0.05)1.322.191.9122.7420.3140.1630.2971.573

KCl
0100.80c8.79b28.87c39.93c4.187d1.645d2.545b9.94c
25101.87bc10.04b33.47b42.67b4.580c1.913c2.645b10.45bc
50105.53a15.37a40.00a46.20a6.247a2.727a3.132a15.42a
75102.07b10.62b33.47b42.13bc5.840b2.455b2.807b11.62b
LSD (0.05)1.181.961.7112.4520.2810.1460.2651.407

LSD: least significant difference at the 5% level; means in the column followed by the same letters are not significantly different at the 5% level; PH: plant height; LA: leaf area; TTNPP: total number of tillers per plant; TKW: thousand-grain weights; NGPS: number of grains per spike; AGBM: above-ground biomass; GY: grain yield; SY: straw yield; AE: agronomic efficiency.