The Effects of Strip Cropping Systems on Physico-Chemical Properties of Soil in the Moldavian Plain
The research was carried out on the sloping land at the Agricultural Research Station of Podu-Iloaiei (41°18′52″ N latitude, 27°25′45″ E longitude) and the Experimental Farm of the Agricultural University of Iasi (47°12′62″ N latitude, 27°51′52″ E longitude) on a cambic chernozem (The World Reference Base for Soil Resources (WRB, 2006) and The Romanian Soil Taxonomy System (SRTS-2012). The experiments carried out the Experimental Farm of the Agricultural University of Iasi and at the Podu-Iloaiei Agricultural Research Station, during 2001–2018, had the following objectives: study of water runoff and soil losses by erosion, in different crops; annual rate of erosion processes under the influence of anti-erosion protection of different crops; influence of water runoff and soil erosion on organic matter and mineral element losses from soil. Measurements made after 36 years after the placement of perennial grass strips show that the slope of the platforms has decreased by 21.0–35.0% compared to the initial slope of the terrain, by the agro-terracing process, and the slope of the taluses with perennial grasses, increased by 214–397%. On 16% slope lands, the mean annual soil losses by erosion were comprised between 4.762 and 9.326 t ha−1 year−1 in row crops (soybean and sunflower) and between 1.564 and 2.453 t ha−1 year−1 in wheat and rape crops. The crop structure, which determined the diminution in mean soil losses by erosion until 2.800 t ha−1 year−1 included 20% winter wheat, 20% of peas, 20% maize and 40% perennial grasses and legumes.
KeywordsWater erosion Cropping system Organic carbon
The authors would like to acknowledge the CNFIS-FDI-2019-0267 project for funding The 18th International Conferences on Global Research and Education, special thanks also go to the researchers of the Agricultural Research Station of Podu Iloaiei, Iasi County, for their support in carrying out our investigations.
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