Turkish Journal of Field Crops

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HAY YIELD AND QUALITY OF INTERCROPPED SORGHUM-SUDAN GRASS HYBRID AND LEGUMES WITH DIFFERENT SEED RATIO

Ugur BASARAN , Medine COPUR DOGRUSOZ , Erdem GULUMSER , Hanife MUT

Abstract

In this study, sorghum-sudangrass hybrid ‘Aneto’ and legumes (soybean and cowpea) intercropping at different seed rates (100:100; 50:100, 100:50) were examined for hay yield, protein content, protein yield, relative feed value (RFV) and mineral content (P, K, Mg, Ca) in 2013 and 2014. As legume Yesilsoy (Syes) and Yemsoy (Syem) verieties of soybean and Ulkem (C) varietiy of cowpea were used. Sorghum-sudangrass hybrid x legume intercropping produced higher hay and protein yield compare to their monocrops. RFV of hay also exalted with intercropping copmpare to alone sorghum-sudangrass hybrid (S). Over the years, the highest hay yield was obtained from S intercropped with Syes at 100:100 (21.61 t ha-1 ), 100:50 (20.68 t ha-1 ) seed rates and with C at 50:100 (20.40 t ha-1 ) seed rate. Protein yield was the highest in 100S:100Syes tratment in 2013 (2.16 t ha-1 ), 2014 (2.85 t ha-1 ) and combined years (2.50 t ha-1 ). However, S intercropping with C at 100:100, 50:100 (in 2013) and at 50:100 (in 2014) seed rates were at par with 100S:100Syes. This study indicated that seed rate and species or variety selection extremly important in mixture cropping. Thus, generally sorghum-sudangrass hybrid and ‘Yesilsoy’ variety of soybean at 100:100 seed rate exhibited the best results in regarding hay and protein yield in the present conditions.

Keyword: cowpea, hay yield, intercropping, sorghum-sudangrass hybrid, soybean, ,

Effects of Different Water Stress Levels on Biomass Yield and Agronomic Traits of Switchgrass (Panicum virgatum L.) Varieties under Semi-Arid Conditio

Erdal GONULAL, Suleyman SOYLU, Mehmet SAHIN

Abstract

A field experiment was conducted in the Wielkopolska region at the Gorzyń Research Station, Poland (52.34°N, 15.54°E) in Central Europe. The study was conducted over a 3-year period (2017, 2018, 2019) as a two-factorial design with four replications in the RCBD. The aim of the research was to determine the effect of the cultivar (‘Bolero’, ‘Tytan’) and the inoculation (Nitragina–seeds inoculation, Nitroflora I–seeds inoculation, Nitroflora II–soil inoculation, HiStick® Lupin–seeds inoculation) on plant development, seeds chemical composition and yielding of narrow-leaved lupin. The weather conditions and experimental factors significantly influenced on productivity of narrow-leaved lupin ‘Tytan’. Drought during the growing season reduced seeds and protein yields. After inoculation of HiStck the seeds yield was significantly greater by 12.4% (p < 0.01) and the protein yield after application of Nitroflora I or HiStick by 13.9% (p < 0.01) and 19.2% (p < 0.01), respectively. Correlation coefficients showed strong relations between number of pods and seeds per plant in both cultivars regardless of the inoculation variant, however the strongest relations in both cultivar were proved on HiStick treatment.
Keyword: Biological nitrogen fixation, chemical composition, legumes, protein efficiency, yielding