the effect of uncultivation and green manuring on soil resistance and soil humidity

¹István Szőllősi – ²László Tolner - ¹Zsolt Péter Kiss – ¹Zoltán Kovács – ¹Tamás Czirják

¹College of Nyíregyháza, Faculty of Agriculture and Engineering

²Szent István University in Gödöllő, Faculty of Agricultural Environmental Sciences

summary

The objectives of our measurements were to study the effect of uncultivation and lupin green manuring on Westsik experimental plots considering soil compactness. The experiments were conducted on F1 and F2 experimental plots of the Nyíregyháza research centre of Debrecen University. The plots are sandy, located on a hill, representing the diversity of sandy soils of the Nyírség area. Potatoes were grown on the experimental plots. The F1 plot was uncultivated, the F2 plot was green lupin manured.

Evaluating the penetration resistance data we concluded, that soil resistance was bigger in uncultivated plots, than in green lupin manured plots. The soil resistance was less on green lupin manured plots, when the soil humidity figure were less, then on uncultivated plots.

It was proved, that besides increasing soil fertility, green manuring improves the soil structure as well. Working lupin into the soil improves soil structure, the ploughed green mass, and the decomposed roots diminish soil compactness.