DB42/T 1263-2017 桑园土壤营养诊断及施肥技术规程

ICS65.020.20

B61

备案号：DB42

湖北省地方标准

DB42/T1263—2017

桑园土壤营养诊断及施肥技术规程

TechnicalcodeforMulberrysoilnutritiondiagnosisandfertilization

（报批稿）

2017-05-16发布2017-08-16实施

湖北省质量技术监督局发布

DB42/T1263—2017

目次

前言...............................................................................III

1范围..............................................................................1

2规范性引用文件....................................................................1

3术语和定义........................................................................1

3.1采样单元samplingunit......................................................1

3.2土壤主要养分mineralnutritionelements....................................2

3.3土壤营养诊断soilnutritiondiagnosis........................................2

4土壤营养诊断......................................................................2

4.1土壤样品采集与制备............................................................2

4.1.1采样规划..................................................................2

4.1.2采样单元确定..............................................................2

4.1.3采样时间..................................................................2

4.1.4采样深度..................................................................2

4.1.5采样点数量................................................................2

4.1.6采样路线..................................................................3

4.1.7采样方法..................................................................3

4.1.8样品量....................................................................3

4.1.9样品整理与制备............................................................3

4.2土壤营养元素的测定............................................................3

4.2.1土壤pH的测定.............................................................4

4.2.2土壤有机质含量的测定......................................................4

4.2.3土壤全氮的定量测定........................................................4

4.2.4土壤碱解氮的定量测定......................................................4

4.2.5速效磷和速效钾的定量测定..................................................4

4.2.6土壤有效态硼的定量测定....................................................4

4.2.7土壤有效态锌、铁含量的测定................................................4

4.3土壤营养诊断分级指标..........................................................4

5施肥技术..........................................................................5

5.1肥料种类......................................................................5

5.2施肥数量......................................................................6

5.2.1确定目标产量..............................................................6

5.2.2测算单位产量氮素吸收量....................................................6

5.2.3校正系数计算..............................................................6

5.2.4肥料用量计算..............................................................6

I

DB42/T1263—2017

5.2.5施肥量计算................................................................6

5.3施肥方法......................................................................7

5.4根外追肥......................................................................7

II

DB42/T1263—2017

前言

本标准按照GB/T1.1-2009《标准化工作导则第1部分：标准的结构和编写》给出的规则起草。

本标准由湖北省农业科学院提出。

本标准由湖北省农业科学院并归口管理。

本标准起草单位：湖北省农业科学院经济作物研究所。

本标准