WANG Huai-peng,QIU Guang-wei,LIU Ling-ling,et al.Effects of Different Row Spacing and Density on Growth,Dry Matter Accumulation and Distribution of Industrial Hemp[J].HEILONGJIANG AGRICULTURAL SCIENCES,2022,(04):29-33,38.[doi:10.11942/j.issn1002-2767.2022.04.0029]
不同行距和密度对工业大麻生长及干物质积累与分配的影响
- Title:
- Effects of Different Row Spacing and Density on Growth,Dry Matter Accumulation and Distribution of Industrial Hemp
- Keywords:
- hemp; row spacing; density; agronomic traits; dry matters
- 文献标志码:
- A
- 摘要:
- 为完善纤维型工业大麻优质高产栽培技术,本研究以纤维型工业大麻品种“汉麻5号”为试验材料,设置行距R1(15.0 cm)和R2(7.5 cm),以及种植密度D1(300万粒·hm-2)、D2(350万粒·hm-2)、D3(400万粒·hm-2)、D4(450万粒·hm-2)和D5(500万粒·hm-2),分析不同行距和密度配置对工业大麻相关农艺性状及干物质积累与分配的影响。结果表明:生育期内工业大麻株高、茎粗和根长总体在R1D4处理下表现最优,分别较其他处理显著增加8.59%~56.01%、2.90%~82.81%和32.56%~113.31%。R1D4处理的植株干物重在苗期和开花期表现最优,较同时期各处理显著增加9.56%~261.21 g和75.96~346.25 g;工艺成熟期植株干物质积累在R2D4处理下达到最大值。综合分析得出行距15 cm,密度450万粒·hm-2为齐齐哈尔市克山地区“汉麻5号”适宜的高产栽培方式组合。
- Abstract:
- In order to improve the high-quality and high-yield cultivation technology of fibrous industrial hemp,the fiber industrial hemp variety “Hanma 5” was used as the experimental material.Five planting densities of D1(3.0 million grains·ha-1),D2(3.5 million grains·ha-1),D3(4.0 million grains·ha-1),D4(4.5 million grains·ha-1)and D5(5.0 million grains·ha-1) were set with different row spacing R1(15.0 cm) and R2(7.5 cm),and the effects of different row spacing and density configurations on the industrial hemp were analyzed,including agronomic traits and dry matter accumulation and distribution.The results showed that the plant height,stem diameter and root length of hemp at seedling stage,flowering stage and technological maturity stage were the best under R1D4 treatment,which were significantly increased by 8.59%-56.01%,2.90%-82.81% and 32.56%-113.31% respectively compared with other treatments.The dry weight of hemp plant treated with R1D4 was the best at seedling stage and flowering stage,which was significantly increased by 9.56%-261.21% and 75.96%-346.25% compared with each treatment at the same time.The dry matter accumulation of plants in process maturity reached the maximum in R2D4 treatment.The comprehensive analysis showed that the row spacing of 15 cm and the density of 4.5 million grain·ha-1 were suitable for high-yield cultivation of “Hanma No.5” in Qiqihar Keshan area.
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备注/Memo
收稿日期:2021-12-15
基金项目:黑龙江省农业科学院麻类科技创新专项(MLCX20-13);齐齐哈尔市科技计划创新激励项目(CNYGG-2021021)。
第一作者:王怀鹏(1994-),男,硕士,助理研究员,从事工业大麻栽培生理研究。E-mail:bywhpyxw@163.com。
通信作者:牛若超(1966-),男,硕士,正高级农艺师,从事工业大麻栽培生理研究。E-mail:keshansuo@163.com。