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中国农学通报

中国农学通报 ›› 2020, Vol. 36 ›› Issue (31): 7-12.doi: 10.11924/j.issn.1000-6850.casb20191100817

所属专题： 烟草种植与生产

• 农学·农业基础科学 • 上一篇    下一篇

硅钙钾镁肥用量对烟草根系发育及烟叶质量的影响

马存金1,2(), 任士伟1, 郑磊1,2, 陈剑秋1,2()   

  1. 1金正大生态工程集团股份有限公司,山东临沭 276700
    2养分资源高效开发与综合利用国家重点实验室,山东临沭 276700
  • 收稿日期:2019-11-11 修回日期:2020-02-20 出版日期:2020-11-05 发布日期:2020-11-20
  • 通讯作者: 陈剑秋
  • 作者简介:马存金,男,1989年出生,中级农艺师,硕士,主要从事植物营养研究。通信地址：276700 山东省临沂市临沭县兴大西街19号,E-mail：macunjin@kingenta.com。
  • 基金资助:
    国家重点研发计划课题“非常规酸解体系磷及伴生资源的转化分离机制与综合利用”(2018YFC1900202);泰山产业领军人才工程项目“土壤酸化综合防治与地力提升关键技术产业化开发与应用”(LJNY201818)

Effects of Different Dosages of Silicon-Calcium-Potassium-Magnesium Fertilizer on Root Development and Tobacco Quality

Ma Cunjin1,2(), Ren Shiwei1, Zheng Lei1,2, Chen Jianqiu1,2()   

  1. 1Kingenta Ecological Engineering Co., Ltd., Linshu Shandong 276700
    2State Key Laboratory of Nutrition Resources Integrated Utilization, Linshu Shandong 276700
  • Received:2019-11-11 Revised:2020-02-20 Online:2020-11-05 Published:2020-11-20
  • Contact: Chen Jianqiu

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摘要：

研究硅钙钾镁肥对烟草根系发育及烟叶质量的影响,探讨硅钙钾镁肥在改良酸化土壤中的作用,为指导烟叶优质高效生产管理提供依据。以‘NC55’为试材,在大田条件下,设置硅钙钾镁肥不同用量梯度(0、750、1500、2250 kg/hm2)处理,按植株各个不同器官进行系统取样,并测定植株农艺性状、根系形态、根系生理活性等各指标。结果表明,在试验梯度范围内,硅钙钾镁肥的施用促进了烟草根系的发育和烟叶质量的提高,表现为根系形态更加优良,根系生理活性更强,烟草农艺性状明显改善,烟叶外观质量提高,化学成分更加协调,经济效益明显提高。随着硅钙钾镁肥用量的增加,各指标呈现先升后降的趋势,其中硅钙钾镁肥1500 kg/hm2处理效果最好,与不施用硅钙钾镁肥比,根系形态指标平均提高25.06%、根系生理活性指标平均提高28.62%,叶片钾含量提高0.35个百分点、总植物碱降低0.35个百分点,产值增加3486.88元/hm2、均价提高1.23元/kg、上等烟比例提高个6.9百分点,实际应用中还需要根据土壤具体pH进行合理调整。

关键词: 烟草, 硅钙钾镁肥, 根系发育, 农艺性状, 烟叶质量

Abstract:

The main objective is to investigate the effect of a new soil conditioner on root development and tobacco quality and explore the fertilizer’s role in improving acidified soil. With ‘NC55’ as the test material, different dosages of silicon calcium potassium magnesium fertilizer gradient (0, 750, 1500, 2250 kg/hm2) treatment were set up in field to determine the agronomic indexes and root morphology and root physiological activity indexes by systematic sampling according to different organs of the plant. Experimental results showed that: the addition of silicon calcium potassium magnesium fertilizer improved the root development and tobacco quality within the range of gradient treatment. It showed that the root was stronger, the agronomic characters were significantly improved, tobacco quality and economic benefits were improved, and the chemical composition was more coordinated. With the increase of the dosage of silicon calcium potassium magnesium fertilizer, all the tested indexes showed a trend of rising first and then decreasing. Among them, the treatment dosage of 1500 kg/hm2was the best. Compared with the treatment without the application of silicon calcium potassium magnesium fertilizer, the morphological index of root increased by 25.06%, the physiological activity of root increased by 28.62%, the potassium content of leaves increased by 0.35 percentage points, the potassium content of leaves decreased by 0.35 percentage points, the output value increased by 3486.88 yuan/hm2, the average price increased by 1.23 yuan/kg, and the proportion of topped tobacco increased by 6.9 percentage points. But the dosage should be adjusted according to the soil pH and the specific acidification degree.

Key words: tobacco, silicon calcium potassium magnesium fertilizer, root development, agronomic character, tobacco quality

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