ACTA AGRONOMICA TOMUS 31. (A MTA AGRÁRTUDOMÁNYI KÖZLEMÉNYEI, 1982)
1982 / 1-2. szám - I. BÓCSA-J. KRISZTIÁN-B. KADLICSKÓ-A. MÁTÉ-I. KÉSMÁRKI: Attempts at introducting crownvetch (Coronilla varia L.) in Hungary
1* 3 ATTEMPTS AT INTRODUCING CROWNVETCH destruction, so it has not yet been terminated. The number of yearly cuttings is shown in Table 2. The possibility of cultivating crownvetch was studied on the spoil bank of a surface coal mine at Ecséd, the only favourable feature of which was the large amount of CaC03 it contained. Apart from this, the readily available mineral nutrients and organic matter content were extremely low. The water conditions were unfavourable, the surface was inclined to crack, and the water conductivity and retention were both poor. Another comparative crownvetch-alfalfa trial combined with liming and fertilization was set up in the neighbourhood of Demjén, in Heves county, on an eroded sloping area with acidic brown forest soil with clay ilhiviation, a type of soil characteristic of the Northern Hills in Hungary. The area is on a slope with an 8% southward inclination, moderately damaged by erosion. The soil is more acidic than at Kompolt and contains a smaller amount of readily available nutrients; it is brown forest soil with clay illuviation. Only when limed can it be planted with alfalfa. In the nursery of the Mosonmagyaróvár faculty of the Keszthely University of Agricultural Sciences the experiment was set up on a calcarous Danube alluvium soil which contained large quantities of CaC03 and readily available nutrients, and was thus favourable for alfalfa production. Data obtained at this site prove the high potential productivity of crownvetch. The major characteristics of the soils in the trials described above are contained in Table 1. The trials at Kompolt. Ecséd and Mosonmagyaróvár were launched in 1974 with uniform fertilizer treatments. The Coronilla variety was Penngift at all three sites, while the alfalfa variety was Óvári tarkavirágú at Mosonmagyaróvár and Mv. Synalfa at Ecséd and Demjén. The plot size was 6 m2 at Ecséd and 5.6 m2 at Mosonmagyaróvár. The plots in both trials were arranged in a random block design. With the exception of the Kompolt trial the голе distance was 30 cm for crownvetch and 20 cm for alfalfa; the number of germs per metre was 100 for crownvetch and 150 for alfalfa. The trial at Demjén was set up in 1976 in a divided plot design with 4 replications. The treatments are shown in Table 3. The plot size was 30 m2; the row distance was 10.5 cm for alfalfa with 150 germs per metre and 3Ï.5 cm for crownvetch with 75 germs/m. In addition to the green crop the dry matter content and the crude protein percentage were measured in each experiment; in certain experiments the raw fibre and carotene contents were also determined, and in the Kompolt and Mosonmagyaróvár trials an aminogram was also prepared for crownvetch. The determination of the amino acid composition in the Kompolt trial was carried out by the National Inspectorate of Animal Husbandry and Feeding. Finally, in 1976 a comparative variety trial was set up at Kompolt from the assortment at our disposal, which at the same time served to supply information for the National Institute for Variety Testing (OMFI), since the latter did not launch national trials for this purpose, but agreed instead to accept our data. The experiment included the following varieties: 1. Konipolti C6 (Hungarian, selected from Penngift) 2. Louvenours (French, selected from local ecotypes) Table 1 Results of soil analysis at the experimental sites H,О pH KCl CaCO„ % Уг Ps05, mg% K,0, mg% Organic matter, % Kompolt 6.5 5.2 0 9.5 3 16 2.9 Demjén 6.1 4.8 0 11.4 1 9 2.5 Mosonmagyaróvár 8.4 7.8 12 -13 12 2.8 Ecséd* 4.8 7.1 15 — 2 8 0.9 The P205 and K20 mg% values were obtained in aluminium lactate solution. * Analytical result of a spoil hank left after surface coal mining. Acta Agronomica Academiae Scientiarum Hungaricae 31, 1982