. 2021 Feb 3;7(2):e06145. doi: 10.1016/j.heliyon.2021.e06145

Table 1.

Level of mechanization per Pole of Agricultural Development.

PAD^∗	% of equipment used for tillage
PAD^∗	Manual	Animal-drawn	Tractor	Manual and animal-drawn	Manual and tractor
PAD1	31.35 (12.80)^d	7.45 (3.52)^b	0.25 (0.06)^b	55.90 (18.01)^a	5.10 (4.81)^a
PAD2	60.29 (19.77)^c	13.10 (7.19)^a	1.77 (1.53)^a	18.10 (15.65)^b	4.40 (3.32)^ab
PAD3	72.88 (26.57)^b	6.42 (6.79)^b	1.30 (1.43)^ab	17.03 (19.41)^b	2.40 (1.67)^abc
PAD4	95.89 (6.18)^a	0.84 (1.51)^c	0.42 (0.69)^b	1.61 (2.61)^c	1.23 (2.25)^bc
PAD5	98.83 (1.19)^a	0.11 (0.12)^c	0.16 (0.20)^b	0.18 (0.16)^c	0.72 (0.99)^c
PAD6	97.36 (2.61)^a	0.16 (0.11)^c	0.46 (0.44)^b	0.30 (0.32)^c	1.68 (1.92)^bc
PAD7	98.36 (2.17)^a	0.36 (0.78)^c	0.32 (0.51)^b	0.52 (0.99)^c	1.13 (1.62)^bc

Each value is an average (standard deviation). Numbers with different letters in the same column are significantly different at 5% threshold according to the Student Newman-Keuls test.

^∗

PAD = Pole of Agricultural Development.

Source: Adapted from INSAE 2016.