PERFORMANCES OF FORAGE TURNIP (Brassica rapa L.) CULTIVARS UNDER DIFFERENT NITROGEN TREATMENTS

Yıl 2006, Cilt: 21 Sayı: 1, 44 - 48, 15.02.2006

Sebahattin Albayrak Ncdet Çamaş

Öz

The effects of five nitrogen rates (0, 50, 100, 150 and 200 kg ha-1) on root, leaf yields and some yield components of four forage turnips (Agressa, Siloganova, Polybra and Volenda) were evaluated under the Black Sea Coastal Area Conditions in Turkey in the 2002 and 2003 growing seasons. The root yield, root dry matter yield, root crude protein yield, root diameter, root length, leaf yield, leaf dry matter yield, and leaf crude protein yield were determined. Root and leaf yields and their yield components of forage turnip cultivars increased along with increase of nitrogen doses. The highest root and leaf dry matter yields were obtained from cultivar Volenda (7.19 and 5.24 t ha-1, respectively) in the treatments of 150 kg per hectare nitrogen.

Anahtar Kelimeler

Forage turnip, nitrogen fertilizer, root yield, leaf yield

YEM ŞALGAMI (Brassica rapa L.) ÇEŞİTLERİNİN AZOTLU GÜBRELEMEYE KARŞI PERFORMANSLARI

Öz

Karadeniz Bölgesi sahil koşullarında beş farklı azot dozunun (0, 50, 100, 150 ve 200 kg/ha) dört yem şalgamı çeşidinin (Agressa, Siloganova, Polybra ve Volenda) yumru, yaprak verimi ve verim öğeleri üzerine etkilerinin belirlendiği bu araştırma 2002 ve 2003 yetiştirme periyodunda yürütülmüştür. Araştırmada yumru verimi, yumru kuru madde verimi, yumru ham protein verimi, yumru çapı, yumru boyu, yaprak verimi, yaprak kuru madde verimi ve yaprak ham protein verimi belirlenmiştir. Azotlu gübrelemenin artmasıyla yem şalgamı çeşitlerinin yumru ve yaprak verimi ile diğer verim öğeleri artmıştır. En yüksek yumru ve yaprak kuru madde verimleri hektara 150 kg azotlu gübreleme uygulanan Volenda çeşidinden (sırasıyla 7.19 ve 5.24 t/ha) elde edilmiştir

Anahtar Kelimeler

Yem şalgamı, azotlu gübreleme, yumru verimi, yaprak verimi

Kaynakça

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