This research was planned to present the effect of subsurface drip irrigation system on the yield and quality parameters of alfalfa of alone and mixture planted form in order to close the roughage deficit in the limited irrigable agricultural lands to the regional producer in Kırklareli conditions. The field experiment was carried out in a total of 24 plots with four replications in 2019 and 2020 according to the "Factorial Arranged Random Blocks Trial Design" on the land of Kırklareli Atatürk Soil Water and Agricultural Meteorology Research Institute. Two planting methods from alone planting (clover) and mixed planting consisting of alfalfa (Medicago sativa L.), Orchardgrass (Dactylis glomerata L.), perennial grass (Lolium perenne L.) and smooth brome (Bromus inermis L.) were used in the study. The ratios of the plants in the mixtures were determined as 25% for legume and 75% for poaceae. As the irrigation method, precipitation-based conditions, drip irrigation laterals placed at a depth of 20 cm in the soil and a subsurface drip irrigation system using drip irrigation laterals placed at a depth of 40 cm were preferred. In the research, the highest green grass yield (11.031,19 kg da -1 ) and the highest hay yield (1,880.51 kg da -1 ) was obtained from irrigated alone planting with laterals placed at a depth of 40 cm. In mixed planting, the highest yield of green (10.166,32 kg da -1 ) and hay was obtained in the plots irrigated with laterals placed at a depth of 20 cm. In both planting forms, the lowest yield was obtained from the treatments based on precipitation. According to the data obtained; Considering the green grass and hay yields, crude protein, crude cellulose, ADF, NDF and raw ash ratios in planted alone alfalfa plots; Irrigation with laterals placed at a depth of 40 cm in the soil, and irrigation with laterals placed at a depth of 20 cm in mixed planting can be recommended.
Objective: The objective of this study was to examine the effects of different irrigation methods on yield, quality and water consumption values of Italian grass in Kırklareli conditions. Material and Methods: The study was carried out in a randomized block design with 4 replications. Results: The highest green grass yield (8007.20 kg/da) and the highest dry grass yield (1508.74 kg/da) were obtained from the irrigated plots with the surface drip irrigation system. The highest crude protein content (14.69%) was determined in the plots grown under precipitation-based conditions, and the lowest crude protein content (13.17%) was determined in the plots irrigated with the drip irrigation system placed at a depth of 20 cm. It was found that the average seasonal plant water consumption was 629.74 mm in conditions where Italian grass was irrigated with the above-ground drip irrigation system, 574.74 mm in irrigated conditions at a lateral depth of 20 cm, and an average of 571.65 mm in conditions irrigated at a lateral depth of 40 cm. These findings make the daily plant water consumption values to be 9.29 mm, 8.63 mm and 8.48 mm, respectively. Conclusion: Irrigation applications made with laterals placed at a depth of 40 cm in the subsurface provide water savings, but irrigation with laterals placed at a depth of 20 cm provides both water savings and higher efficiency than irrigation applied at a depth of 40 cm.
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