Abstract

This research was conducted to determine how forage yield and crude protein (CP) concentration of forage pea-rye (Secale cereale L.), forage pea-triticale (X Triticosecale rimpaui Wittm.) and forage pea-wheat (Triticum aestivum L.) intercrops are affected by harvest at two small grain cereals growth stages (milk and soft-dough).The base seeding rate used in this study was 100 seeds m-2 of forage pea in mixture with 200 seeds m-2 of each cereal. A summary of production treatments involved: fertilisation before plowing (40 kg N ha-1, 130 kg P ha-1, 130 kg K ha-1), plowing at 30 cm, granular topdressing 2 x 30 kg N ha-1. In the early flowering stage of forage pea DM yield was significantly (P=0, 05) lower than when it was cut in early seed vegetative stage. The highest forage pea DM yield was obtained in mixture with wheat. Triticale in mixture with forage pea gained significantly the highest yield of DM among all small grain cereals, and that affected in great portion total DM yield that was also significantly highest with that mixture. In the early flowering stage of forage pea CP yield was significantly lower than when it was cut in early seed vegetative stage. The highest forage pea CP yield was obtained in mixture with wheat. All cereals in mixtures with forage pea significantly better yielded in late boot vegetative stage compared to early head. The conclusion of this research is that the highest yield of DM and CP was obtained with the mixture of forage winter pea and triticale.

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