Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2014, Vol. 30 ›› Issue (18): 65-70.doi: 10.11924/j.issn.1000-6850.2014-0093

Special Issue: 小麦

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Improving Planting Quality and Crop Yield for No Tillage Winter Wheat

  

  • Received:2014-01-09 Revised:2014-03-11 Online:2014-06-25 Published:2014-06-25

Abstract: No tillage winter wheat yield varied with different climate and soil conditions across regions, and adapting crop management to no tillage across different climate conditions is essential to obtaining high crop yield. In this study, three planting patterns with different no tillage seeders (A1, 12×28 cm, A2, 20×40 cm, and A3, 30×30 cm) planting pattern) and planting rates (B1 (225 kg/hm-2), 10% increase (B2, 247.5 kg/hm-2), and 20% increase (B3, 270 kg/hm-2) were designed under conversation tillage from 2009 to 2012, and their effects on crop growth and grain yield were analyzed. The results showed significant effects of plant pattern on wheat growth and yield, and A1B1 produced highest basic seeding, plant population, leaf area index, aboveground biomass and crop yield compared with other two sowing patterns. Increased spike number was the main contributor to increased wheat yield under conservation tillage. Increasing sowing rate improved spike number and crop yield, and can be considered as an important measures to cope with the low basic seeding under conservation tillage. Interactions between planting pattern and sowing rate significantly affected spike number and final crop yield. The three year results show that A1B2 can be considered as the reasonable crop management for the conservation tillage in the region.