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This study was carried out with the aim of determining the effect of forage plants belonging to different families on herbage quality and yield with different mixing ratios (Berseem clover:Italian ryegrass; 100:0%, 80:20%, 60:40%, 40:60%, 20:80% and 0:100%). In the study, plant height, green herbage and dry herbage yields, clover ratios in green herbage and dry herbage, crude protein ratio and yield, acid detergent fiber (ADF), neutral detergent fiber (NDF), digestible dry matter (DDM), dry matter intake (DMI) rates and relative feed value (RFV) were investigated in Derya variety of berseem clover (Trifolium alexandrinum L.) belonging to Eastern Mediterranean Agricultural Research Institute and Elif variety of Italian ryegrass (Lolium multiflorum Lam.) obtained from Aegean Agricultural Research Institute. The experiment was carried out with 4 replications according to the randomized blocks trial design in the summer term of 2020 in Bahçekapi village of Elazig city center. According to the study findings; the average green herbage yield of mixtures was found to be 3784.9 kg da-1, dry herbage yield was 1210.8 kg da-1, and crude protein yield was 146.6 kg da-1. Crude protein, acid detergent fiber (ADF), neutral detergent fiber (NDF), digestible dry matter (DDM), dry matter intake (DMI) ratios and relative feed value (RFV) of the mixtures were determined as 12.04%, 35.7%, 50.9%, 61.0%, 2.36%, and 112.15, respectively. As a result of this study; it was determined that the most suitable mixture ratios in terms of dry herbage, green herbage and crude protein yields and crude protein ratio were 80% Berseem clover + 20% Italian ryegrass and 60% Berseem clover + 40% Italian ryegrass mixtures in Elazig ecological conditions. It was observed that the dry herbage, green herbage and crude protein yields and crude protein ratios were higher in the plots where the Berseem clover was more concentrated in the mixtures. [ABSTRACT FROM AUTHOR]

The aim of current study was to determine silage quality traits of leafy “L” and semi-leafy “SL” forage pea varieties (Pisum arvense L) and annual ryegrass “R” (Lolium multiflorum var. westervoldicum L.) mixtures (100:0, 80:20, 60:40, 40:60, 20:80 and 0:100%). The harvested materials were chopped in size of 2 cm, and they filled into vacuum bags, and then let for fermentation at 25±2 oC for 45 days. In this study; dry matter, pH, crude protein, crude ash, some organic acids, acid detergent fiber (ADF), neutral detergent fiber (NDF), potassium (K), phosphorus (P), calcium (Ca), magnesium (Mg) and cobalt (Co) contents were determined. The highest crude protein content was determined sole forage pea silages (16.31% and 15.73%) and 80L+20R% (15.58%) mixture. According to the Flieg score, leaf forage pea (97.51) and 80L+20R% (99.19) silages have the highest value and, they were in very good quality class. ADF and NDF content of silages ranged between 25.87-30.24% and 34.55-45.53%, respectively. The highest lactic acid was determined in 100R% (4.448%), 80L+20R% (4.250%), 40L+60R% (3.523%) and 20L+80R% (3.885%). The mineral content of silages were at a level to meet the needs of the livestock. As a result, it was determined that the mixture of leafy forage pea and ryegrass 80+20% silage was better in terms of silage quality. [ABSTRACT FROM AUTHOR]

This research was conducted to investigate the effects of seven different nitrogen doses (0, 50, 100, 150, 200, 250 and 300 kg ha-1) on the yield and quality of some annual ryegrass species (Alberto, Devis, and Baqueano) at the experimental area of Agricultural Faculty of Isparta University of Applied Science under Isparta ecological conditions in 2017-2018 and 2018-2019 vegetation periods. This research was conducted in a randomized block design with three replication. Plant height, stem thickness, hay yield, crude protein ratio, crude protein yield, ADF and NDF ratios were investigated. According to average results, nitrogen applications increased plant height, stem thickness, hay yield, crude protein ratio, crude protein yield while it decreased ADF and NDF ratios. When the differences between the cultivars were examined, it was found that Devis in terms of plant height and ADF ratio, Alberto in terms of stem thickness, hay yield, crude protein ratio, and crude protein yield, were higher values. According to the results of this study, it can be recommended to apply 250 kg ha-1 nitrogen dose for high forage yield and quality in Italian grass farming under Isparta ecological conditions, considering environmental pollution and economic conditions. [ABSTRACT FROM AUTHOR]

The objectives of this study were to determine the effect of nitrogen fertilization on seed yield and some plant characteristics of perennial ryegrass (Lolium perenne L.). The study was conducted at experimental field of Viticulture and Research Institute of Agricultural Ministry located in Tekirdag -TURKEY during 2001-2003. In the experiment, nitrogen was applied in four different doses such as 0, 12, 24 and 36 kg da -1. Nitrogen application splited into 3 equal parts. One third of the nitrogen applied in fall while the rest two parts applied in the spring season. Irrigation was made in heading stage and after each nitrogen application. Nitrogen application effected plant height, fertil tiller number, biological yield and seed yield of perennial ryegrass positively while it effected harvest index negatively. Nitrogen application had no significant effect on spike lenght and thousand seed weight. Based on the results of this study, optimum nitrogen dose for seed production was obtained from plots applied 12 kg da-1 nitrogen in total. [ABSTRACT FROM AUTHOR]