DB21∕T 2351-2014 养蟹稻田施肥技术规程

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1、ICS65.020.20B05DB21辽宁省地方标准DB21/T2351-2014养蟹稻田施肥技术规程TechniqueoffertilizationinRice-Crabregulation2014-11-19发布2015-01-19实施辽宁省质量技术监督局发布DB21/T2351-2014目次前言................................................................................III1范围...................................................

2、............................12规范性引用文件.....................................................................13术语...............................................................................13.1测土推荐施肥soiltestingandformulafertilization.......................13.2一次性施肥singlebasalapplicationo

3、ffertilization......................13.3有机无机配施肥organicandinorganicnitrogenfertilizer...................23.4目标产量targetyield........................................................23.5最佳经济施肥量optimaleconomicfertilizerrate............................23.6河蟹最大承受氮素能力maximumresisitantcapacityofn

4、itrogenforcrab...24指标...............................................................................24.1产量指标.......................................................................24.2水稻群体指标...................................................................24.3河蟹生长指标......................

5、.............................................25合理施肥原则.......................................................................25.1肥料使用原则...................................................................25.2禁止使用重金属含量超标的肥料（附录B列出了肥料中主要重金属的限量指标）。........25.3实行有机、无机、生物肥配合施用（有机肥卫生标准见附录C）。......

6、................25.4指导思想.......................................................................36合理施肥技术.......................................................................36.1总则...........................................................................36.2肥料用量.........................

7、..............................................36.2.1氮肥用量...................................................................36.2.2有机肥用量.................................................................36.2.4钾肥用量...............................................................