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

Table 7

Effect of dose and time of 2, 4-D application on plant height (cm) of natural pasture.

Factors (2, 4-D herbicide doses and time of application)	Grasses			Legumes
	1^st year	2^nd year	Mean	1^st year	2^nd year	Mean
Doses
0 Lha^−1 (control)	69.33	100.90	85.12	58.00	70.00	64.00
1 Lha^−1	73.78	99.63	86.71	57.44	77.59	67.52
1.5 Lha^−1	80.22	100.37	90.29	57.44	75.73	66.59
2 Lha^−1	83.11	96.70	89.51	59.00	76.04	67.02
-value	0.45	0.81	0.87	0.96	0.63	0.94
Time
Control	69.33	100.90	85.12	58.00	70.00	64.00
Mid-July	81.33	96.31	88.82	57.11	80.00	68.56
Early August	73.33	99.82	86.58	57.22	76.10	66.66
Mid-August	82.44	101.05	91.20	59.56	72.91	65.84
-value	0.43	0.68	0.82	0.88	0.25	0.85
R  T	ns	ns	ns	ns	ns	ns
Mean	78.07	99.18	88.45	57.97	75.77	66.87
CV	19.93	8.70	19.12	12.32	11.33	18.37

1^st year = 2019, 2^nd year = 2020, CV = coefficient variation, R  T = dose and time interaction.