Table II The deposition of dye tracer...

Table II

The deposition of dye tracer detected from cellulose patches: mean and standard derivations expressed as µg cm⁻² on different spray application techniques (on rice at the tillering stage)

		Deposition of dye tracer on patch (µg cm⁻²)
Patches’ positions	Sides	MK (farmer)		MK (officer)		MB (farmer)		MB (officer)		Boom fan^a		Boom cone^a
		Mean	±SD	Mean	±SD	Mean	±SD	Mean	±SD	Mean	±SD	Mean	±SD
Lower leg	Right	12.35	16.96	1.64	0.56	9.17	0.49	0.26	0.05	3.74	1.22	2.19	1.69
	Left	12.3	9.13	1.37	0.41	9.05	0.66	0.20	0.04	1.55	1.22	2.66	1.62
Thigh	Right	23.00	12.78	0.6	0.11	2.86	0.04	0.79	0.07	2.68	3.77	1.01	0.88
	Left	18.53	2.69	0.61	0.24	2.81	0.08	0.68	0.04	2.75	1.18	1.98	1.46
Chest	Right	4.25	3.39	0.45	0.05	0.39	0.08	0.27	0.04	0.2	0.06	0.14	0.03
	Left	5.49	4.84	0.28	0.04	1.05	0.13	0.12	0.03	0.15	0.02	0.21	0.04
Forearm	Right	8.71	8.53	0.67	0.46	1.37	0.25	0.79	0.07	0.72	0.5	1.21	1.53
	Left	7.56	5.46	0.28	0.17	1.34	0.28	0.43	0.11	0.37	0.3	0.84	0.91
Upper arm	Right	0.88	0.42	0.25	0.17	0.28	0.04	0.27	0.14	0.24	0.05	0.18	0.07
	Left	0.39	0.07	0.19	0.1	0.35	0.08	0.2	0.1	0.16	0.07	0.12	0.03
Hand	Right	1.19	0.33	0.28	0.04	0.46	0.07	0.27	0.04	0.25	0.08	0.23	0.07
	Left	1.24	0.47	0.25	0.05	0.43	0.12	0.24	0.04	0.33	0.2	0.21	0.1
Face		10.62	1.41	ND^b	–	0.27	0.06	ND	–	ND	–	ND	–
Forehead		2.34	1.55	ND	–	0.12	0.03	ND	–	ND	–	ND	–
Back		0.65	0.23	ND	–	0.58	0.14	ND	–	ND	–	ND	–
Total		109.51	14.44	6.86	0.36	30.53	1.64	4.58	0.51	13.14	2.41	10.97	1.25

		Deposition of dye tracer on patch (µg cm⁻²)
Patches’ positions	Sides	MK (farmer)		MK (officer)		MB (farmer)		MB (officer)		Boom fan^a		Boom cone^a
		Mean	±SD	Mean	±SD	Mean	±SD	Mean	±SD	Mean	±SD	Mean	±SD
Lower leg	Right	12.35	16.96	1.64	0.56	9.17	0.49	0.26	0.05	3.74	1.22	2.19	1.69
	Left	12.3	9.13	1.37	0.41	9.05	0.66	0.20	0.04	1.55	1.22	2.66	1.62
Thigh	Right	23.00	12.78	0.6	0.11	2.86	0.04	0.79	0.07	2.68	3.77	1.01	0.88
	Left	18.53	2.69	0.61	0.24	2.81	0.08	0.68	0.04	2.75	1.18	1.98	1.46
Chest	Right	4.25	3.39	0.45	0.05	0.39	0.08	0.27	0.04	0.2	0.06	0.14	0.03
	Left	5.49	4.84	0.28	0.04	1.05	0.13	0.12	0.03	0.15	0.02	0.21	0.04
Forearm	Right	8.71	8.53	0.67	0.46	1.37	0.25	0.79	0.07	0.72	0.5	1.21	1.53
	Left	7.56	5.46	0.28	0.17	1.34	0.28	0.43	0.11	0.37	0.3	0.84	0.91
Upper arm	Right	0.88	0.42	0.25	0.17	0.28	0.04	0.27	0.14	0.24	0.05	0.18	0.07
	Left	0.39	0.07	0.19	0.1	0.35	0.08	0.2	0.1	0.16	0.07	0.12	0.03
Hand	Right	1.19	0.33	0.28	0.04	0.46	0.07	0.27	0.04	0.25	0.08	0.23	0.07
	Left	1.24	0.47	0.25	0.05	0.43	0.12	0.24	0.04	0.33	0.2	0.21	0.1
Face		10.62	1.41	ND^b	–	0.27	0.06	ND	–	ND	–	ND	–
Forehead		2.34	1.55	ND	–	0.12	0.03	ND	–	ND	–	ND	–
Back		0.65	0.23	ND	–	0.58	0.14	ND	–	ND	–	ND	–
Total		109.51	14.44	6.86	0.36	30.53	1.64	4.58	0.51	13.14	2.41	10.97	1.25

Notes: ^aThe amount of dye tracer on cellulose patches from two operators; ^bND: the amount of dye tracer from cellulose patches have quite a few deposits that cannot be detected by a colorimeter

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