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LI Wei, DING Qishuo, HE Ruiyin, LI Haikang, RUI Chaojie. Micro-climate characteristics and seedling qualities in seed-zone of post-paddy wheat field under different tillage and seeding modes[J]. Journal of South China Agricultural University, 2018, 39(1): 45-50. DOI: 10.7671/j.issn.1001-411X.2018.01.008
Citation: LI Wei, DING Qishuo, HE Ruiyin, LI Haikang, RUI Chaojie. Micro-climate characteristics and seedling qualities in seed-zone of post-paddy wheat field under different tillage and seeding modes[J]. Journal of South China Agricultural University, 2018, 39(1): 45-50. DOI: 10.7671/j.issn.1001-411X.2018.01.008

Micro-climate characteristics and seedling qualities in seed-zone of post-paddy wheat field under different tillage and seeding modes

More Information
  • Received Date: May 13, 2017
  • Available Online: May 17, 2023
  • Objective 

    To evaluate the regional applicability of different tillage and seeding modes, provide a theoritical basis for cultivating in rice-wheat rotation area, optimizing sowing technique and designing related precision seeders, and guarantee high quality and yield of post-paddy wheat.

    Method 

    A seed-zone micro-climate tester was applied to continuously monitor the micro-climate conditions, seed germination and seedling establishment under three seeding modes, including no-till mulching (NT1), no-till drill (NT2) and rotary-tilling broadcasting (CK).

    Result 

    The field experiment showed that the seed-zone micro-climates under three seeding modes varied significantly. Seed-zone micro-climate under NT1 mode remained relatively stable. Large soil clods formed under CK mode, and led to a large change of micro-climate in seed-zone and made it difficult to conserve soil moisture. NT2 created the most stable seed-zone micro-climate, providing the most suitable temperature and humidity for seed germination. The germination rates under NT1, NT2 and CK modes were 58.39%, 71.81% and 61.80% respectively.

    Conclusion 

    Different tillage and seeding modes significantly influence seed-zone micro-climate, seed germination and seedling establishment. The proposed seed-zone micro-climate tester is suitable for quickly and accurately evaluating the regional applicability of tillage and seeding modes for past-paddy wheat. Excellent tillage procedures, good seedbed environment and large contact area between seed and soil are the key factors of wheat growth.

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