The Effect of Minimum Tillage and No-tillage on Growth and Yield of Winter Wheat

doi:10.3321/j.issn:1000-7091.2007.02.034

Abstract

Abstract: The growth and yield of winter wheat were studied on field experiments under different tillage models in North China Plain. Based on tillage models, 6 treatments were set including plough, rotate and zero tillage. The results showed that the tillage fashions greatly affected the ratio of leaf emergence in wheat. The ratio leaf emergence in plough was 27.1%-46.2% higher than that in zero tillage. Because of mulching the soil temperature under zero tillage in turning green stage was lower than that of other treatments, which led to delay 7-10 days of wheat growing season and affect grain filling. Owing to less water evaporation and undeveloped wheat roots under zero tillage, it was easy to leaching of nitrate nitrogen below the soil depth of 100 cm. As a result, both the ratio of nitrogen utilization and the wheat yield decreased.

Key words: Minimum tillage, Not illage, Winter wheat, Yield, Mulch

CLC Number:

S512.01

DONG Wen-xu, CHEN Su-ying, HU Chun-sheng, YIN Chun-mei. The Effect of Minimum Tillage and No-tillage on Growth and Yield of Winter Wheat[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2007, 22(2): 141-144. doi: 10.3321/j.issn:1000-7091.2007.02.034.

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