Effects of Different Conservation Tillages on Yield and Quality of Flax

doi:10.7668/hbnxb.20192794

Abstract

Abstract:

In order to investigate the effects of different conservation tillage measures on soil water content during flax growth period,fiber and grain yield,planting cost and farmers' income,a field experiment was carried out in Binchuan County,Yunnan Province,where was rich in light and heat but dry with little rain. The results showed that compared with conventional tillage,the 9 different conservation tillage methods could significantly increase the soil water content in surface soil,and increase plant height,stem diameter,technical length,branch number,capsule number per plant,and stem weight per plant to a certain level. Compared with conventional tillage,different conservation tillages did not significantly increase the grain yield and fiber yield of flax. However,in terms of the total yield,no-tillage,no ditching,and covering flax seeds with a soil thickness less than 0.5 cm obtained the highest yield increase,which increased the grain yield by 272 kg/ha and fiber yield by 123 kg/ha compared with conventional tillage. Therefore,conservation tillage could be a good choice for flax cultivation in Binchuan and similar regions with the same climate. Suitable conservation tillage could increase the yield of flax fiber and grain,and reduce the planting cost of flax,so as to increase the income of farmers.

Key words: Flax, Drilling method, No-tillage, Straw mulching, Conservation tillage

ZHAO Xinlin, LIU Hongqiang, QIU Caisheng, GUO Yuan, LONG Songhua, WANG Yufu. Effects of Different Conservation Tillages on Yield and Quality of Flax[J]. Acta Agriculturae Boreali-Sinica, 2022, 37(S1): 148-153. doi: 10.7668/hbnxb.20192794.

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References 22

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序号 Order	处理 Treatment	处理简称 Abbreviation
1	常规耕作,翻土15 cm	CK
2	完全免耕,不开沟,不覆土或稻草	NT+NC
3	完全免耕,不开沟,覆干稻草2~3层,地表覆盖率95%以上,约0.4 kg/m²	NT+Str
4	完全免耕,不开沟,覆厢沟边碎土不大于0.5 cm	NT+Soil
5	少耕,开小沟,不覆土或稻草	LT+NC
6	少耕,开小沟,覆稻草2~3层,地表覆盖率95%以上,约0.4 kg/m²	LT+Str
7	少耕,开小沟,覆土深度不大于0.5 cm	LT+Soil
8	少耕,破碎厢面2 cm,不覆土或稻草	LT+NC+BS
9	少耕,破碎厢面2 cm,覆稻草2~3层,地表覆盖率95%以上,约0.4 kg/m²	LT+Str+BS
10	少耕,破碎厢面2 cm,覆土深度不大于0.5 cm	LT+Soil+BS

序号 Order	处理 Treatment	处理简称 Abbreviation
1	常规耕作,翻土15 cm	CK
2	完全免耕,不开沟,不覆土或稻草	NT+NC
3	完全免耕,不开沟,覆干稻草2~3层,地表覆盖率95%以上,约0.4 kg/m²	NT+Str
4	完全免耕,不开沟,覆厢沟边碎土不大于0.5 cm	NT+Soil
5	少耕,开小沟,不覆土或稻草	LT+NC
6	少耕,开小沟,覆稻草2~3层,地表覆盖率95%以上,约0.4 kg/m²	LT+Str
7	少耕,开小沟,覆土深度不大于0.5 cm	LT+Soil
8	少耕,破碎厢面2 cm,不覆土或稻草	LT+NC+BS
9	少耕,破碎厢面2 cm,覆稻草2~3层,地表覆盖率95%以上,约0.4 kg/m²	LT+Str+BS
10	少耕,破碎厢面2 cm,覆土深度不大于0.5 cm	LT+Soil+BS

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