Influence of fertilisation on phytomass of field grass rich in red clover
1998
Geherman, V. | Kaerner, M. (Estonian Agricultural University, Tartu (Estonia). Dept. of Grassland Science and Botany)
Grasses are likely to remain the pre-eminent forage, altough legumes, principally red clover in a mixture with grasses, have an important role. legumes not only fix their own nitrogen, and thereby have the potential to save expense on fertiliser nitrogen, but they generally have a higher nutritive value than grass as well. In the trial, the botanical composition depended on response to fertiliser nitrogen and micronutrients balanced red clover growth. At the PK fertilisation, the sward composition of red clover was 47.7 per cent and when were used microfertilisers, it depended on treatment and obtained 2.5...3.7 t ha sup(-1) of DM, which content of sward was 58.4...70.7 per cent. The results of the trial indicated that the total dry matter yield of 2.94 t ha sup(-1) was obtained on the PK fertilisation and on the NPK fertilisation 6.22 t ha sup(-1). The co-influence of different microfertilisers increased the dry matter yield of field grass: on the PK background in the association of copper, boron, cobalt and molybdenum extra yield of 2.3 t ha sup(-1) was obtained. The using microfertilisers in the association of B+Co+Mo on the NPK background gave extra yield of 3.3 t ha sup(-1). The least effects was obtained on the PK background by the treatments where only used boron, selenium and in touch with cobalt and molybdenum. For the increasing of dry matter yield in the field grass sward several microfertilisers should be used. This trial showed that the elements such as copper, boron cobalt and molybdenum can been used
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