NY/T 739-2003 English PDF

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NY/T 739-2003: Operation quality of grain dirl
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
NY/T 739-2003	199	Add to Cart	3 days	Operation quality of grain dirl	Valid

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Basic data

Standard ID: NY/T 739-2003 (NY/T739-2003)
Description (Translated English): Operation quality of grain dirl
Sector / Industry: Agriculture Industry Standard (Recommended)
Classification of Chinese Standard: B91
Classification of International Standard: 65.060.25
Word Count Estimation: 6,611
Date of Issue: 2003-12-01
Date of Implementation: 2004-03-01
Summary: This standard specifies the sowing cereals (wheat) mechanical work quality assessment indicators, test methods and inspection rules. This standard applies to cereals sowing (wheat) Assessment of quality of mechanical operations.

NY/T 739-2003: Operation quality of grain dirl

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Operation quality of grain dirl ICS 65.060.25 B91 People's Republic of China Agricultural Industry Standard Quality of grain seeding machinery Released on December 12,.2003 2004-03-01 implementation Published by the Ministry of Agriculture

Foreword

This standard is under the jurisdiction of the National Agricultural Machinery Standardization Technical Committee Agricultural Mechanization Subcommittee. This standard is mainly drafted by. Agricultural Machinery Bureau of Heilongjiang Provincial Agricultural Reclamation Bureau, Engineering College of Heilongjiang Bayi Agricultural University, Jiangsu Agricultural Machinery Test Identification station. The main drafters of this standard. Wang Zhimin, Zhuang Weidong, Liu Jianjun, Li Jun, Li Daofeng. Quality of grain seeding machinery

1 Scope

This standard specifies the quality assessment indicators, testing methods and inspection rules for grain (wheat) sowing machine operations. This standard applies to the assessment of the quality of grain (wheat) seeding machinery operations.

2 Normative references

The terms in the following documents become the provisions of this standard by reference to this standard. All dated references are followed by Modifications (not including errata content) or revisions do not apply to this standard, however, research that encourages agreements based on this standard is No, the latest version of these files can be used. For undated references, the latest edition applies to this standard. GB 9478 grain seeding machine test method

3 job quality indicators

3.1 Working conditions The conditions of the working plot should meet the agricultural technical requirements of the mechanical sowing operation, and the grain should be sown in time during the agricultural period, and the absolute moisture content of the soil. 16% to 24%. 3.2 Quality indicators When the operating conditions are in accordance with the provisions of 3.1, the quality of grain seeding machinery operations shall comply with the requirements of Table 1. Table 1 Quality indicators of grain seeding machinery operations Serial number item quality index 1 Dispersion coefficient of variation of each row/(%) ≤ 3.9 2 Total displacement stability coefficient of variation/(%) ≤ 1.3 3 sowing depth pass rate/(%) ≥ 75 4 Total seeding rate deviation rate/(%) ± 2 5 Total fertilization rate deviation rate/(%) ± 3 6 Single row spacing deviation/cm ±1 7 Reciprocating adjacent row spacing deviation/cm ± 5 8 Straightness deviation rate/(%) ≤ 0.1 9 Covering rate/(%) ≥ 98 10 broken rate/(%) ≤ 2

4 job quality testing methods

4.1 Dispersion coefficient of variation of each row, coefficient of variation of total displacement stability, yield of seeding depth According to the provisions of GB 9478, the determination of the consistency of each row, the determination of the total displacement stability and the determination of the depth of seed cover. Calculation The row uniformity variation coefficient, the total displacement stability coefficient of variation, and the seeding depth pass rate. 4.2 Total seeding rate deviation rate According to the total seeding amount and the corresponding planting area, calculate the actual seeding amount per hectare, and calculate the total seeding rate deviation rate according to formula (1). ......

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