Research Article

Urea Split Application to Maize (Zea mays L.) Growth Stages of Medium Maturities, Influenced on Grain Yield and Parameter for Yield at Bako, East Wollega, Ethiopia

Table 7

Main effect of growing year, varieties, and nitrogen split application on grain yield, harvest index, and thousand seed weight of maize in 2029 and 2020 cropping season.

TreatmentGrain yieldHarvest indexThousand seed weight (mg)

Year
 20198205.3242.48330
 20208637.3242.00360
 LSD (5%)244.241Ns0.013
Varieties
 BH-5468400.4642.54330
 BH-5478442.1941.94360
 LSD (5%)244.241Ns0.013
Time of urea split application
 1/2 sowing + 1/2 knee height + 0 at tasseling8196.338743.45330
 1/2 sowing + 0 at knee height + 1/2 at tasseling7598.34943.06340
 1/3 sowing + 1/3 knee height 1/3 tasseling8327.315740.42340
 0 at sowing + 2/3 dose at knee height + 1/3 dose at tasseling8803.644341.78350
 0 at sowing + 1/2 knee height + 1/2 tasseling7969.331741.36340
 1/4 at sowing + 1/2 at knee height + 1/4 at tasseling9127.681242.36390
 LSD (5%)423.0381.7960.022
CV (%)6.15.2