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- MakaleYalnız künye2011Application of cattle manure, zeolite and leonardite improves hay yield and quality of annual ryegrass (Lolium multiflorum Lam.) under semiarid conditions
Yolcu, Halil; Seker, Hayati; Gullap, M. Kerim; Lithourgidis, Anastasios; Gunes, Adem
A field experiment was conducted under semiarid conditions to investigate the effect of cattle manure (20 and 40 t ha -1), zeolite (250, 500 and 750 kg ha -1), and leonardite (250, 500 and 750 kg ha -1) applications on hay yield and nutrient quality of annual ryegrass. Application of manure, leonardite, and zeolite increased ryegrass hay yield by 4, 24 and 47%, respectively compared with the control. In all fertilizer levels, the crude protein (CP) content was greater than the control and increased as the level of each fertilizer was increased. Most fertilizer treatments (except from the first level of cattle manure) gave higher CP yield than the control. All fertilizers increased the content of K, S, Ca, Mg, Fe, Mn and B of ryegrass hay as compared with the control, whereas they had no significant effect on Cu and Zn content. The content of most minerals increased as the amount of manure and leonardite applications increased. In conclusion, all fertilizers (especially zeolite) showed great potential for use in organic agriculture as they can improve plant growth and soil conditions in the long term.
- MakaleYalnız künye2011Effect of plant growth-promoting rhizobacteria and manure on yield and quality characteristics of Italian ryegrass under semi arid conditions
Yolcu, Halil; Turan, Metin; Lithourgidis, Anastasios; Çakmakçi, Ramazan; Koç, Ali
Plant growth-promoting rhizobacteria (PGPR) appeared as a promising alternative for organic fertilization. A field experiment was carried out to evaluate the effects of PGPR and solid cattle manure application on yield, quality, and mineral concentrations of Italian ryegrass (Lolium multiflorum Lam.) under semi arid conditions in Turkey. The treatments included: three manure application rates (i.e. M1, 10; M2, 20; and M3, 30 Mg ha -1), five PGPR strains (i.e. RC11, Bacillus subtilis; RC21, Variovorax paradoxus; RC105, Paenibacillus polymyxa; RP24/3, Paenibacillus polymyxa; and RF29/2, Pseudomonas putida), and a control (without bacteria or manure application). Manure application did not increase yield of Italian ryegrass, whereas the treatments with RC21 and RP24/3 rhizobacteria provided the highest dry matter yield. All PGPR and manure applications increased crude protein concentration of Italian ryegrass. The M3 manure rate and most treatments with PGPR (except RC11) produced greater crude protein yield than that of control. In addition, concentrations of P, S, Mg, Cu, Zn, and Fe in most PGPR and manure applications were greater than those of control.