Effects of Foliar Spraying Wood Vinegar on Rice Agronomic Characters and Yield

doi:10.11924/j.issn.1000-6850.casb2022-0619

Abstract

Abstract:

Wood vinegar is formed by the condensation of smoke generated during biochar production. This experiment was conducted to study the effect of wood vinegar on rice growth and yield. Rice variety ‘Tianliangyou 14’ was used as experimental material, and 100 and 300 times diluted wood vinegar was sprayed 1-3 times at tillering, booting and heading stages, respectively, to determine agronomic indexes. The results showed that spraying wood vinegar with different dilution times at different growth stages increased the rice yield by 1.7%-16.9%, and the biomass by 10.0%-24.8%, the number of effective panicles by 12.7%-23.7%, the total number of grains by 6.2%-22.3%, the number of effective grains by 6.6%-18.8%, except for spraying wood vinegar one time with 100 times dilution. Meanwhile, the plant height of rice was significantly increased by 2.7%-9.2%, the number of tillers was increased by 10.9%-46.7%, and SPAD was increased by 2.1%-27.1%. The effect of spraying two or three times with 300 times dilution was better, and there was no significant difference between spraying two and three times. In summary, wood vinegar with 300 times dilution can promote rice growth and increase rice yield. Generally, it is a good strategy to spray once at the tillering and booting stages, respectively.

Key words: wood vinegar, rice, spraying, times, growth, agronomic character

ZHU Kunmiao, GU Sicheng, GENG Molin, PENG Xitian, SHEN Jing, HU Liyong. Effects of Foliar Spraying Wood Vinegar on Rice Agronomic Characters and Yield[J]. Chinese Agricultural Science Bulletin, 2023, 39(24): 6-12.

Figures/Tables 5

References 27

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保留时间/min	名称	相对含量/%		分子式	摩尔质量/(g/mol)
	有机酸	25.54
3.16	乙酸	22.99		C₂H₄O₂	60
9.93	丁酸	2.55		C₄H₈O₂	88
	酮类		6.73
6.50	2-环戊烯		1.61	C₅H₆O		82
8.81	2-甲基-2-环戊烯-1-酮		1.44	C₆H₈O		96
13.80	2,3-二甲基-2-环戊烯-1-酮		1.25	C₇H₁₀O		110
13.96	3-甲基1,2-环戊二酮		1.14	C₆H₈O₂		112
30.66	1-（4-羟基-3-甲氧基苯基）-2-丙酮		1.29	C₁₀H₁₂O₃		180
	酯类		2.34
9.24	γ-丁内酯		2.34	C₄H₆O₂		86
	烷烃化合物		2.7
15.63	双环[2.2.2]辛烷		2.7	C₈H₁₄		110
	醛类		1.53
26.77	香兰素		1.53	C₈H₈O₃		152
	苯酚及其衍生物		38.94
11.95	苯酚		5.91	C₆H₆O		94
14.64	邻甲酚		2.41	C₇H₈O		108
15.48	3-甲基苯酚		3.74	C₇H₈O		108
15.73	愈创木酚		2.75	C₇H₈O₂		124
19.50	2-甲氧基-4-甲基苯酚		2.04	C₈H₁₀O₂		138
20.01	儿茶酚		8.95	C₆H₆O₂		110
22.07	4-甲基1,2-苯二醇		4.81	C₇H₈O₂		124
22.51	4-乙基-2-甲氧基苯酚		1.32	C₉H₁₂O₂		152
25.14	2,6-二甲氧基苯酚		3.56	C₈H₁₀O₃		154
26.29	4-乙基邻苯二酚		1.8	C₈H₁₀O₂		138
28.13	1,2,4-三甲氧基苯		1.65	C₉H₁₂O₃		168
	氮化合物		1.46
21.93	吡啶		1.46	C₅H₅N		79

保留时间/min	名称	相对含量/%		分子式	摩尔质量/(g/mol)
	有机酸	25.54
3.16	乙酸	22.99		C₂H₄O₂	60
9.93	丁酸	2.55		C₄H₈O₂	88
	酮类		6.73
6.50	2-环戊烯		1.61	C₅H₆O		82
8.81	2-甲基-2-环戊烯-1-酮		1.44	C₆H₈O		96
13.80	2,3-二甲基-2-环戊烯-1-酮		1.25	C₇H₁₀O		110
13.96	3-甲基1,2-环戊二酮		1.14	C₆H₈O₂		112
30.66	1-（4-羟基-3-甲氧基苯基）-2-丙酮		1.29	C₁₀H₁₂O₃		180
	酯类		2.34
9.24	γ-丁内酯		2.34	C₄H₆O₂		86
	烷烃化合物		2.7
15.63	双环[2.2.2]辛烷		2.7	C₈H₁₄		110
	醛类		1.53
26.77	香兰素		1.53	C₈H₈O₃		152
	苯酚及其衍生物		38.94
11.95	苯酚		5.91	C₆H₆O		94
14.64	邻甲酚		2.41	C₇H₈O		108
15.48	3-甲基苯酚		3.74	C₇H₈O		108
15.73	愈创木酚		2.75	C₇H₈O₂		124
19.50	2-甲氧基-4-甲基苯酚		2.04	C₈H₁₀O₂		138
20.01	儿茶酚		8.95	C₆H₆O₂		110
22.07	4-甲基1,2-苯二醇		4.81	C₇H₈O₂		124
22.51	4-乙基-2-甲氧基苯酚		1.32	C₉H₁₂O₂		152
25.14	2,6-二甲氧基苯酚		3.56	C₈H₁₀O₃		154
26.29	4-乙基邻苯二酚		1.8	C₈H₁₀O₂		138
28.13	1,2,4-三甲氧基苯		1.65	C₉H₁₂O₃		168
	氮化合物		1.46
21.93	吡啶		1.46	C₅H₅N		79

取样时间	处理	株高/cm	分蘖数/(NO./plant)	SPAD
7月23日	CK	83.93±2.73b	14.13±0.54b	38.68±1.30a
	100-1	95.67±2.92a	15.33±0.42ab	37.75±1.44a
	300-1	93.27±3.03a	15.67±0.37a	39.94±0.97a
8月3日	CK	99.73±1.02b	15.60±0.92b	40.34±0.58b
	100-1	101.80±1.39b	16.33±0.38b	42.06±0.71ab
	100-2	108.00±1.64a	19.67±0.38a	43.45±0.42a
	300-1	105.27±3.08ab	19.93±1.05a	42.71±0.83a
	300-2	108.60±2.11a	20.00±0.88a	43.69±0.23a
8月21日	CK	107.40±2.58c	15.30±0.79c	30.70±1.02c
	100-1	111.37±0.37bc	16.97±0.92bc	31.37±0.96c
	100-2	116.42±0.58a	18.63±0.46ab	36.36±0.40b
	100-3	117.27±2.22a	18.25±0.60ab	37.23±0.62ab
	300-1	115.58±0.94ab	18.53±0.98ab	36.34±0.58b
	300-2	117.33±0.43a	19.44±0.29a	37.42±0.70ab
	300-3	117.44±0.54a	19.83±0.59a	39.01±0.37a

取样时间	处理	株高/cm	分蘖数/(NO./plant)	SPAD
7月23日	CK	83.93±2.73b	14.13±0.54b	38.68±1.30a
	100-1	95.67±2.92a	15.33±0.42ab	37.75±1.44a
	300-1	93.27±3.03a	15.67±0.37a	39.94±0.97a
8月3日	CK	99.73±1.02b	15.60±0.92b	40.34±0.58b
	100-1	101.80±1.39b	16.33±0.38b	42.06±0.71ab
	100-2	108.00±1.64a	19.67±0.38a	43.45±0.42a
	300-1	105.27±3.08ab	19.93±1.05a	42.71±0.83a
	300-2	108.60±2.11a	20.00±0.88a	43.69±0.23a
8月21日	CK	107.40±2.58c	15.30±0.79c	30.70±1.02c
	100-1	111.37±0.37bc	16.97±0.92bc	31.37±0.96c
	100-2	116.42±0.58a	18.63±0.46ab	36.36±0.40b
	100-3	117.27±2.22a	18.25±0.60ab	37.23±0.62ab
	300-1	115.58±0.94ab	18.53±0.98ab	36.34±0.58b
	300-2	117.33±0.43a	19.44±0.29a	37.42±0.70ab
	300-3	117.44±0.54a	19.83±0.59a	39.01±0.37a