Response of Yield and Soil Water Content in Summer Soybean to No-tillage and Normal Tillage of Previous Wheat(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:

2010年06期

Page:

967-970

Research Field:

Publishing date:

Info

Title:

Response of Yield and Soil Water Content in Summer Soybean to No-tillage and Normal Tillage of Previous Wheat

Author(s):

ZHANG Bao-min¹; XU Xiao-li²; WANG Feng³; LIU Feng³; WANG Fa-hong⁴

1. Binzhou Vocational College, Binzhou 256603, Shandong;

2. Shandong Binchengqu Agriculture Bureau, Binzhou 256600, Shandong;

3. Shandong Binzhou Meteorological Bureau, Binzhou 256600, Shandong;

4. Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan 250100, Shandong, China

Keywords:

Soil water content; No-tillage in previous crop; Normal tillage in previous crop; Summer soybean

PACS:

S565.1

DOI:

10.11861/j.issn.1000-9841.2010.06.0967

Abstract:

By using large area tests, the comparison study among the changes of soil water content, agronomic character and the yield in summer soybean were carried out under no-tillage and normal tillage in previous crops of wheat. The results showed that in natural conditions, the rainfall during the whole growing period of soybean was 338.70 mm and the average soil water content was reducing by 1.06% at 0～20 cm in no-tillage than that of normal tillage, but the difference was not significant. The average water content in no-tillage soil was 0.36%, 0.96% and 0.97% higher than that of normal tillage at the depth of 20～40 cm, 40～60 cm and 60～80 cm, respectively, but all differences were not significant. These difference effects were not significant which no-tillage than that of normal tillage in summer soybean agronomic characters of growth period, 100-seed weight, etc. In the peak water requirement period of soybean, there was a corresponding effective precipitation and the soil water content could meet the needs of soybean growth. Moreover, the average yield of no-tillage and normal tillage was 4253.6 and 4313.2 kg·ha^-1, respectively. Yield of no-tillage was less than the normal tillage by 59.6 kg·ha^-1, but the difference was not significant. Therefore, under natural conditions, no-tillage crops was not only could obtain almost the same yield as normal tillage, but also could save the amount of labor, prevent soil erosion, protect soil structure and eliminate the effects of plow formation on crop root growth. In summary, no-tillage crop could deserve to popularization.

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