Influence of legume crops on the fertility of clay loam soil and winter wheat productivity
2003
Maiksteniene, S. | Arlauskiene, A. (Lithuanian Inst. of Agriculture, Dotnuva (Lithuania). Joniskelis Research Station)
The effect of red clover (Trifolium pratense L.), sown lucerne (Medicago sativa L.), vetch and oat mixture (Vicia sativa L., Avena sativa L.) and green material of these legume crops used as green manure on the build up of biological N variation of soil properties and productivity of witer wheat (Triticum aestivum L.) was investigated on Endocalcari-Endohypogleyic Cambisol (CMg-n-w-can), according to the texture - clay loam on silty clay. It was revealed that lucerne and clover left the highest content of plant residues in the soil, which was 2.7 and 1.8 times more as compared to annual vetch and oat mixture. Lucerne determined accumulation of the highest contents of total nitrogen (0.138), humus (2.18) in the soil. When winter wheat was grown after lucerne, the highest grain yield was obtained, which was by 18.5 and 28.3 higher than that after clover or vetch and oat mixture
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