[The influence of reduced tillage on winter wheat yield and agrophysical soil properties]
1999
Stancevicius, A. | Spokiene, N. | Jodaugiene, D. | Treciokas, K. | Raudonius, S. (Lithuanian Univ. of Agriculture, Kaunas-Akademija (Lithuania))
The possibility to use shallow ploughing (12-14 cm) or chisel loosening (12-14 and 23-25 cm) instead of conventional ploughing (23-25 cm) in the six year crop rotation was investigated at the Experimental Station of Lithuanian University of Agriculture in 1989-1998. The experiment was conducted on light loam soil. Herbicides were used only during the second crop rotation because of high weed infestation. The results of investigation show that ploughing of the depth of 23-25 cm is not necessary to keep soil loose. Ploughed loose soil naturally settles and becomes dense approximately within one month. After winter wheat sowing soil bulk density was already similar in all treatments. Differences of soil bulk density, total porosity and moisture content between all treatments were not significant during all the vegetation period of winter wheat. According to nine year average experimental data, reduced soil tillage did not decrease winter wheat yield.
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