Doses and Timing of 2, 4-D Application for Broadleaf Weed Control, Botanical Compositions, Productivity, and Nutritive Value of Natural Pasture

Table 10

Effect of the interaction of dose and time of 2, 4-D application on dry matter yield (t·ha⁻¹) of weeds.

Treatments	1^st year	2^nd year	Mean
Control (no treatment)	0.65	0.70^a	0.68^a
1 L·ha^−1 at early (mid-July)	0.61	0.44^ab	0.53^ab
1 L·ha^−1 at mid (early-August)	0.58	0.64^a	0.61^a
1 L·ha^−1 at late (mid-August)	0.71	0.70^a	0.71^a
1.5 L·ha^−1 at early (mid-July)	0.35	0.12^bc	0.24^b
1.5 L·ha^−1 at mid (early-August)	0.69	0.61^a	0.65^a
1.5 L·ha^−1 at late (mid-August)	0.61	0.45^ab	0.53^ab
2 L·ha^−1 at early (mid-July)	0.42	0.02^c	0.22^b
2 L·ha^−1 at mid (early-August)	0.64	0.05^bc	0.35^ab
2 L·ha^−1 at late (mid-August)	0.54	0.60^a	0.56^ab
Mean	0.58	0.43	0.50
CV	22.21	21.24	34.38
-value	0.8996	0.0027	0.0188

1^st year = 2019, 2^nd year = 2020. Means in each column with different letters have a significant difference.