Tobacco Stubble Returning Based on Pot Experiment: Effects on Growth and Yield of Rice

doi:10.11923/j.issn.2095-4050.cjas2021-0109

Abstract

Abstract:

In order to figure out the effects of tobacco stubble returning on rice growth and yield, pot experiments were conducted to test the dynamic change of rice tillering, plant height and roots, and the accumulation of dry matter, nitrogen, phosphorus and potassium, and the effects on rice yield by simulating different tobacco stubble returning. The results show that tobacco stubble returning could promote rice tillering, plant height and root development, the accumulation of dry matter, nitrogen, phosphorus and potassium, and rice yield. The tobacco stubble total returning and the tobacco root returning could increase the yield by 17.35% and 8.60%, respectively. Tobacco stubble total returning is beneficial to the growth and yield of rice, and it can be popularized in tobacco rice multiple cropping area.

Key words: tobacco stubble returning, rice growth, rice yield, dry matter accumulation, nutrient accumulation

CLC Number:

CHEN Jin, HUANG Jie, DENG Yongsheng, ZHANG Qingfu, YANG Liu, XIE Pengfei, DENG Xiaohua. Tobacco Stubble Returning Based on Pot Experiment: Effects on Growth and Yield of Rice[J]. Journal of Agriculture, 2022, 12(11): 5-10.

Figures/Tables 5

References 29

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时间/d	处理	长度/cm	投影面积/cm²	表面积/cm²	平均直径/mm	体积/cm³	根尖数
20	T1	468.18±65.88a	27.17±0.68a	85.37±2.14a	0.59±0.07a	1.25±0.12a	2027.67±67.63a
	T2	462.82±29.57a	29.12±5.05a	91.47±15.85a	0.67±0.09a	1.15±0.47a	1612.33±65.88b
	CK	456.30±69.63a	21.14±5.68b	66.42±17.83b	0.47±0.05b	0.78±0.15b	1331.33±23.56c
30	T1	509.69±96.35a	39.67±7.03a	124.61±22.08a	0.78±0.08a	2.44±0.55a	1788.33±82.88a
	T2	434.75±65.04ab	34.54±1.83ab	97.10±5.77ab	0.66±0.07b	2.27±0.07a	1364.67±91.02b
	CK	376.64±78.7b	27.78±5.02b	87.28±15.77b	0.54±0.07c	1.40±0.30b	1493.33±45.53b
40	T1	794.09±61.53a	64.99±11.03a	205.78±34.21a	0.98±0.08a	4.34±1.10a	3031.33±105.19a
	T2	762.64±57.78a	46.19±13.31b	144.88±41.80b	0.92±0.01b	3.30±0.97b	2587.67±33.28b
	CK	558.51±10.25b	38.77±9.41c	121.80±29.56c	0.73±0.15c	2.16±0.33c	2097.67±97.38c
60	T1	621.75±97.22a	109.56±52.99a	344.20±66.47a	1.81±0.09a	15.17±7.42a	350.26±50.54a
	T2	627.44±15.85a	85.31±3.06b	270.05±24.52b	1.61±0.14b	9.77±0.71b	370.33±14.29a
	CK	499.01±13.78b	77.58±2.51c	248.69±14.51c	1.55±0.04c	9.56±0.40b	253.33±12.34b
80	T1	504.03±7.56a	50.26±1.98a	169.20±31.99a	1.11±0.13a	3.90±0.39a	326.67±27.32a
	T2	518.76±16.19a	51.71±2.56a	168.06±17.06a	1.03±0.11b	4.18±0.31a	324.83±29.82a
	CK	380.22±14.50b	33.78±2.23b	106.54±7.57b	0.87±0.08c	2.38±0.30b	208.33±19.43b

时间/d	处理	长度/cm	投影面积/cm²	表面积/cm²	平均直径/mm	体积/cm³	根尖数
20	T1	468.18±65.88a	27.17±0.68a	85.37±2.14a	0.59±0.07a	1.25±0.12a	2027.67±67.63a
	T2	462.82±29.57a	29.12±5.05a	91.47±15.85a	0.67±0.09a	1.15±0.47a	1612.33±65.88b
	CK	456.30±69.63a	21.14±5.68b	66.42±17.83b	0.47±0.05b	0.78±0.15b	1331.33±23.56c
30	T1	509.69±96.35a	39.67±7.03a	124.61±22.08a	0.78±0.08a	2.44±0.55a	1788.33±82.88a
	T2	434.75±65.04ab	34.54±1.83ab	97.10±5.77ab	0.66±0.07b	2.27±0.07a	1364.67±91.02b
	CK	376.64±78.7b	27.78±5.02b	87.28±15.77b	0.54±0.07c	1.40±0.30b	1493.33±45.53b
40	T1	794.09±61.53a	64.99±11.03a	205.78±34.21a	0.98±0.08a	4.34±1.10a	3031.33±105.19a
	T2	762.64±57.78a	46.19±13.31b	144.88±41.80b	0.92±0.01b	3.30±0.97b	2587.67±33.28b
	CK	558.51±10.25b	38.77±9.41c	121.80±29.56c	0.73±0.15c	2.16±0.33c	2097.67±97.38c
60	T1	621.75±97.22a	109.56±52.99a	344.20±66.47a	1.81±0.09a	15.17±7.42a	350.26±50.54a
	T2	627.44±15.85a	85.31±3.06b	270.05±24.52b	1.61±0.14b	9.77±0.71b	370.33±14.29a
	CK	499.01±13.78b	77.58±2.51c	248.69±14.51c	1.55±0.04c	9.56±0.40b	253.33±12.34b
80	T1	504.03±7.56a	50.26±1.98a	169.20±31.99a	1.11±0.13a	3.90±0.39a	326.67±27.32a
	T2	518.76±16.19a	51.71±2.56a	168.06±17.06a	1.03±0.11b	4.18±0.31a	324.83±29.82a
	CK	380.22±14.50b	33.78±2.23b	106.54±7.57b	0.87±0.08c	2.38±0.30b	208.33±19.43b

处理	有效穗数/（个/m²）	成穗率/%	每穗粒数/粒	千粒质量/g	结实率/%	产量/(g/m²)	增产率/%
T1	502.06±12.64a	41.83±2.78b	72.46±2.40a	23.52±0.25a	89.04±1.29a	855.64±20.46a	17.35
T2	486.68±12.27ab	45.56±5.01b	70.01±1.70a	23.24±0.31a	86.43±2.06a	791.84±13.22b	8.60
CK	479.52±14.50b	59.94±4.57a	67.25±1.16b	22.61±0.26b	74.48±2.03b	729.12±28.04c	—

处理	有效穗数/（个/m²）	成穗率/%	每穗粒数/粒	千粒质量/g	结实率/%	产量/(g/m²)	增产率/%
T1	502.06±12.64a	41.83±2.78b	72.46±2.40a	23.52±0.25a	89.04±1.29a	855.64±20.46a	17.35
T2	486.68±12.27ab	45.56±5.01b	70.01±1.70a	23.24±0.31a	86.43±2.06a	791.84±13.22b	8.60
CK	479.52±14.50b	59.94±4.57a	67.25±1.16b	22.61±0.26b	74.48±2.03b	729.12±28.04c	—