Controlled-Release Urea in Banana Production in Southern China



  • Authors : Tan, H.; Zhou, L.; Zeng, Y.; Ou, H.; Huang, J.; Zhu, X.; Tu,

  • Document type : Journal article

  • Year of publication : 2016

  • Journal title : Better Crops with Plant Food

  • Volume (number) : 100 (4)


  • Pages : 19-21

  • Peer-reviewed : No

  • Language(s) : English

  • Abstract : This paper presents the results of a study conducted in Guangxi, China, to examine the optimal rates and timing of controlled-release urea (CRU) and to evaluate its influence on banana yield and quality. This three-year (2013-15) field experiment compared different rates, timings and blends of CRU and regular urea (RU). CRU significantly reduced the number of fertilizer N applications from a 6-split strategy with RU to a less demanding and less costly 2 to 3 splits with CRU. Banana yields with CRU were generally 5 to 10% higher compared to RU. The higher yields were attributed to improved finger number per plant and finger weight. The full CRU-N rates proved best, followed by CRU applied at a reduced (80%) N rate. However, reduced N rate options could only maintain 2-3 years of high yield production given the site's soil fertility status. Agronomic efficiency of N was the highest for both reduced rate (70% and 80%) CRU options, followed by either CRU treatment applied at the full N rate. CRU alone achieved the best returns, but CRU applied in blends with urea, or in reduced rates, were all feasible practices.

  • Keywords : NITROGEN FERTILIZERS; UREA; CONTROLLED RELEASE; CHINA; COMPARATIVE STUDY

  • Open access : Yes

  • Document on publisher's site : open View article on publisher's site

  • Musalit document ID : IN170078


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