Welcome to Chinese Journal of Tropical Crops,

Chinese Journal of Tropical Crops ›› 2019, Vol. 40 ›› Issue (5): 839-849.DOI: 10.3969/j.issn.1000-2561.2019.05.002

• Crop Culture and Nutrition, Genetic Breeding • Previous Articles     Next Articles

Effects of Sisal Stalks Returned to the Field with Nitrogen Fertilizer on the Soil Fertility and Sisal Growth

TAN Shibei,XI Jingen(),ZHENG Jinlong,HE Chunping,WU Weihuai,LIANG Yanqiong,HUANG Xing,LI Rui,YI Kexian()   

  1. Environment and Plant Protection Institute, Chinese Academy of Topical Agricultural Sciences / Danzhou Scientific Observing and Experimental Station of Agro-Environment, Ministry of Agriculture & Rural Affairs, Haikou, Hainan 571101, China
  • Received:2018-06-01 Revised:2018-10-14 Online:2019-05-25 Published:2019-05-31
  • Contact: Jingen XI,Kexian YI


In order to return the sisal stalks properly as the organic fertilizer, a pot experiment was carried out to study on the effects of sisal stalks returned to soil with nitrogen fertilizer application on the soil fertility and sisal growth. The results showed that the soil organic matter content, alkali hydrolysable nitrogen content and the soil urease activity were significantly higher than that in the controls, increased by 180.0%, 46.8% and 109.7%, respectively. And the three indicators also increased significantly when using the sisal stalks combined with different amount of urea. Soil invertase activity was significantly higher thanthat in the controls by using the sisal stalks combined with 1/2 amount of urea. Sisal leaf length after sisal stalks returned to the soil with 1/4 amount of urea was significantly higher than that in the control, the single application of urea and the single application of sisal stalks by 60.9%, 25.0% and 22.5%, respectively. Sisal stalks could replace some urea, and it needn’t use the full dose of urea when sisal stalks were returned to the field.

Key words: sisal stalks, returned to the field, nitrogen fertilizer, soil fertility

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