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中国农学通报

中国农学通报 ›› 2020, Vol. 36 ›› Issue (2): 42-47.doi: 10.11924/j.issn.1000-6850.casb18100017

• 林学·园艺·园林 • 上一篇    下一篇

不同比例有机氮对旱柳生长及养分吸收的影响

杜俊兰   

  1. 山西省关帝山国有林管理局,山西文水 032100
  • 收稿日期:2018-10-08 修回日期:2019-05-20 出版日期:2020-01-15 发布日期:2020-04-30
  • 作者简介:杜俊兰,女,1978年出生,林业工程师,本科,主要从事林业栽培应用与育苗相关的研究工作。通信地址：032100 山西省文水县开栅镇 山西省关帝山国有林管理局人事科,E-mail：dujunlan2018@163.com。
  • 基金资助:
    山西省科技厅攻关项目“油松、落叶松、新疆杨优良品种选育及旱柳高效营林技术研究”(20120311014-1)

Ratios of Organic Nitrogen: Effects on Growth and Nutrient Uptake of Salix matsudana

Du Junlan   

  1. Shanxi Guandishan State Forestry Administration, Wenshui Shanxi 032100
  • Received:2018-10-08 Revised:2019-05-20 Online:2020-01-15 Published:2020-04-30

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摘要：

研究不同比例有机氮对旱柳幼苗生长以及养分吸收的影响规律,以期为旱柳扦插育苗中科学施用有机肥提供理论依据。试验以一年生旱柳扦插苗为试材,设置无肥(T1)、纯无机氮(T2)、30%有机氮(T3)、50%有机氮(T4)、70%有机氮(T5)、100%有机氮(T6)6个处理,3次重复。结果表明：T4株高分别比T2、T3、T6提高了26.91%、14.67%、21.02%,地径T4分别高于T2、T5、T6处理42.70%、34.29%、48.41%;叶绿素含量5—6月T4分别低于T2处理0.24、0.11 mg/g,7—8月T4分别比T2提高了9.16%、35.29%;根、皮、枝、叶氮吸收量T4分别比T2提高了27.13%、26.08%、31.32%、43.30%,磷吸收量分别提高了32.04%、47.37%、49.63%、37.61%,钾吸收量分别提高了24.14%、18.83%、29.95%、30.51%。综合分析认为,T4对促进旱柳生长和养分吸收效果最佳。

关键词: 有机肥, 旱柳, 扦插育苗, 养分吸收, 生长

Abstract:

To study the effect of different ratios of organic nitrogen on the growth and nutrient uptake of Salix matsudana, and provide a basis for scientific application of organic fertilizer in cuttage seedlings of S. matsudana, taking 1-year-old cuttage seedlings of S. matsudana as test materials, we set 6 treatments with no fertilizer (T1), pure inorganic nitrogen (T2), 30% organic nitrogen (T3), 50% organic nitrogen (T4), 70% organic nitrogen (T5), 100% organic nitrogen (T6) and repeated 3 times. The results showed that: the plant height of T4 was higher than that of T2, T3, T6 by 26.91%,14.67%, 21.02%, respectively; the ground diameter of T4 was higher than that of T2, T5, T6 by 42.70%, 34.29%, 48.41%, respectively; the chlorophyll content of T4 was lower than that of T2 by 0.24, 0.11 mg/g from May to June, and then, higher than that of T2 by 9.16%, 35.29% from July to August; the nitrogen uptake in roots, skins, branches, leaves of T4 was higher than that of T2 by 27.13%, 26.08%, 31.32%, 43.30%, respectively; the phosphorus absorption of T4 was higher than that of T2 by 32.04%, 47.37%, 49.63%, 37.61%, the potassium absorption of T4 was higher than that of T2 by 24.14%, 18.83%, 29.95%, 30.51%. It is concluded that T4 is the best treatment on promoting growth and nutrient uptake of S. matsudana.

Key words: organic fertilizer, Salix matsudana, cuttage seedlings, nutrient uptake, growth

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