International Scholarly Research Notices / 2014 / Article / Tab 3

Research Article

Response of Yield and Yield Components of Tef [Eragrostis tef (Zucc.) Trotter] to Tillage, Nutrient, and Weed Management Practices in Dura Area, Northern Ethiopia

Table 3

Main and interaction effects of tillage, fertilizer, and weed control practices on yield and yield components of tef crop in 2009 crop season.

TreatmentTLPH (cm)PL (cm)GY (t ha−1)AGB (t ha−1)HI

Tillage (T)
 Conventional tillage (6 times passes) = T14.2c81c13c1.1c4.8c0.23b
 Four times tillage passes = T26.2a101a24a1.7a6.2a0.27a
 Reduced tillage (single tillage pass) = T35.0b94b17b1.4b5.8b0.24b
Fertilizer (F)
 No fertilizer = F14.0d63d12c0.79d3.7d0.21bc
 23 kg N ha−1 = F26.5b88c19b1.1c6.0c0.18d
 23 kg N ha−1 and 10 kg P ha−1 = F36.9a104a23a1.7a7.5a0.23a
 23 kg N ha−1 and 2.5 t ha−1 manure = F46.8a105a22a1.5b6.8b0.22ab
 2.5 t ha−1 manure = F56.6b98b20b1.2c6.1c0.20c
Weed control practices (W)
 Hand weeding = W16.7a95a21a1.7a5.6a0.30a
 2,4D at 0.75 kg ha−1 at five-leaf stage = W26.2b86b17b1.2b4.3b0.28b
 2,4D at 0.75 kg ha−1 at six-leaf stage = W35.3c78d14c0.98c3.9c0.25c
 2,4D at 150 kg ha−1 at five-leaf stage = W45.1c82c13c1.0c3.7c0.27b
 2,4D at 150 kg ha−1 at six-leaf stage = W54.5d75e11d0.96c3.5d0.27b
Interaction
 T × F*********
 T × W******
 F × W**ns***ns
 T × F × W***********

Means within columns with different letters are significantly different at .
Significant at the 0.05 probability level; significant at the 0.01 probability level; ns: nonsignificant at .
× indicates interaction; TL: tiller number per plant; PH: plant height; PL: panicle length; GY: grain yield; AGB: above ground biomass yield; HI: harvest index.