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中国农学通报

中国农学通报 ›› 2009, Vol. 25 ›› Issue (4): 140-144.

所属专题： 马铃薯

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

中国木薯施肥研究进展

宋付平,黄 洁,陆小静,等   

  • 收稿日期:2008-12-04 修回日期:2008-12-26 出版日期:2009-02-20 发布日期:2009-02-20

Cassava Fertilization Research in China

  • Received:2008-12-04 Revised:2008-12-26 Online:2009-02-20 Published:2009-02-20

PDF (PC)

737

摘要： 摘要：中国木薯施肥研究表明，氮磷钾三大营养元素的重要性排序是N＞K2O＞P2O5，当连作木薯时，推荐N︰P2O5︰K2O配比为2～4︰1︰2～4，随着连作年份的延长而相应提高氮钾配比，推荐中等地力的土壤施肥量为50～100 kg/hm2的N和K2O，25～50 kg/hm2的P2O5。同时，根据各地的土壤化学分析，结合木薯营养需求指标，选择施用Ca、Mg、S、B、Zn和Cu等中微量肥料，建议施用硫酸钾镁肥、钙镁磷肥、生物有机肥、火烧土和各种有机肥，以及把间套种作物和木薯的废茎秆还田，从而提高土壤有机质和补充中微量肥料，可适当采用植物生长调节剂，注意施用基肥和重施苗肥。

关键词: 秦巴山区, 秦巴山区, 野生百合, 性状描述

Abstract: Abstract: According to the conclusion of cassava research in China, the important rank for cassava nutrition are N>K2O>P2O5, it suggested that N:P2O5:K2O ratio is 2-4:1:2-4 for continues cassava production, P fertilizer can always keep low level, but the N and K2O ratio need to be gradually increase year after year. the recommendation optimum fertilizer range per year for moderate fertility soil is about 50-100 kg/hm2 N and K2O, 25-50 kg/hm2 P2O5. Meanwhile, Ca, Mg, S, B, Zn and Cu fertilizer could be selected applying in some region according to local soil condition. it needs attention to apply Sulphate of Potash Magnesia (SPM), Calcium Magnesium Phosphate，bio-organic fertilizer，burned soil, other FYM, waste stem and leaves of cassava and intercrop etc. to supply organic matter and micro nutrition. Moreover, suitable use Plant Growth Regulators, try to apply basic and seeding fertilizer.