Study on Nutrient Use Efficiency of Winter Wheat under Different Tillage and Straw Treatments

doi:10.7668/hbnxb.2010.S1.046

Abstract

Abstract: The nutrient use efficiency in wheat was studied in this article by using split-plot design. The result showed that the wheat yield was significantly depressed under no-till than the conventional tillage. The nitrogen use efficiency under no-till was down by 8. 19 percentage points from conventional tillage,and the phosphorus use efficiency under no-till was down by 0. 64 percentage points. The potassium use efficeincy under no-till was 3. 05 percentage points higher than that under conventional tillage. The nutrient use efficiency was increased by balanced fertilization in two tillages. The N,P,and K content of the wheat straw under no-till was higher than that under conventional tillage,especially the potassium.

Key words: Wheat, Nutrient use efficiency, No-till

CLC Number:

S143

YANG Yun-ma, JIA Shu-long, MENG Chun-xiang, SUN Yan-ming. Study on Nutrient Use Efficiency of Winter Wheat under Different Tillage and Straw Treatments[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2010, 25(S1): 201-204. doi: 10.7668/hbnxb.2010.S1.046.

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http://www.hbnxb.net/EN/Y2010/V25/IS1/201

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