M. Rostaei; S. Fallah; A. Abbasi Sorki; A. Tadayon
Abstract
Organic manure can be used as an alternative for chemical fertilizers in sustainable agriculture. Hence, compared with sole cropping systems, intercropping is a promising approach for crop production due to the lesser reliance on chemical fertilizer. In order to evaluate the effects of intercropping ...
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Organic manure can be used as an alternative for chemical fertilizers in sustainable agriculture. Hence, compared with sole cropping systems, intercropping is a promising approach for crop production due to the lesser reliance on chemical fertilizer. In order to evaluate the effects of intercropping on yield and essential oil of dill (Anethum graveolens L.) under organic manure and chemical fertilizers, a factorial experiment was conducted in a randomized complete block design with three replications at Shahrekord University research farm in 2016. Sole cropping of soybean (S) and dill (D) accompanied by three intercropping ratios of them (S:D 2:1, S:D 1:1, and S:D 1:2) were evaluated as the first factor, and two sources of fertilizer (chemical fertilizer, and broiler litter) as the second factor. The results showed that the highest dry matter yield of dill (1001.48 kg ha-1) and essential oil yield of dill (18.47 kg ha-1) was observed in the one-row dill + two-row soybean. The maximum essential oil percentage of dill (2.64%) was achieved in sole crop under organic manure. The highest pod/ plant (47.50) and seed yield of soybean (2192 kg ha-1) were dedicated to the two-row dill+one-row soybean under organic manure. The maximum land equivalent ratio (1.19) was achieved in treatment of one-row dill + two-row soybean under organic manure. According to the results, treatment of one-row dill + two-row soybean under organic manure had the highest land equivalent ratio, and produced a large amount of dill essential oil; therefore, it was considered as the superior treatment.
A. Tadayyon; S. Torabian; M.R. Tadayon
Abstract
In order to evaluate the morphological and agronomical traits of linseed (Linum usitatissimum L.) genotypes in different plant densities, a field experiment was conducted as a factorial experiment in RCBD design with three replications in the field. Plant densities of 300, 500, and 1000 plant/m2 as ...
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In order to evaluate the morphological and agronomical traits of linseed (Linum usitatissimum L.) genotypes in different plant densities, a field experiment was conducted as a factorial experiment in RCBD design with three replications in the field. Plant densities of 300, 500, and 1000 plant/m2 as first factor and four linseed genotypes (Iran, Australia, Canada, and France) as second factor were used. Plants were harvested at three stages of vegetative growth, 50% flowering, and maturity stage. Results showed that plant densities had significant effect on plant height and above-ground dry weight in vegetative stage; plant height, stem diameter and dry weight in 50% flowering; and plant height, stem diameter, stem branch number, and dry weight in maturity stage. In addition, the number of capsules per plant, 1000 seeds weight, grain yield and harvest index were significantly affected by plant densities. Different linseeds genotypes showed significant effect on the characteristics of plant height, stem diameter, and stem branch number, in all three harvest stages. Traits as number of capsules per plant, number of seeds per capsule, 1000 seeds weight, grain yield, harvest index, and 50% of flowering and maturity also were affected significantly by linseeds genotypes. The maximum grain yield was obtained in the density of 1000 plants/m2. Maximum values were recorded for Iranian linseed genotype with an average production of 6.40 seeds per capsule, an average production of 1375 kg of seeds per hectare, and a mean harvest index of 21.23. It was also identified as the latest genotype for both days to 50% flowering (65 days) and days to maturity (123 days).
E. Ghasemi Siani; S. Fallah; A. Tadayyon
Abstract
In order to investigate the response of quantitative and qualitative characteristics of isabgol (Plantago ovata Forssk.) to different irrigation regimes and different fertilizers, a field experiment was conducted at the research farm, Shahrekord University, 2009. The experimental design was split-plot ...
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In order to investigate the response of quantitative and qualitative characteristics of isabgol (Plantago ovata Forssk.) to different irrigation regimes and different fertilizers, a field experiment was conducted at the research farm, Shahrekord University, 2009. The experimental design was split-plot in randomized complete blocks design with three replications. Whole plots were three replications of irrigation intervals (irrigation after 7, 14 and 21 days), and sub plots were different N fertilizers including 100% chemical fertilizer, 100% chicken manure, 75% chemical fertilizer + 25% chicken manure, 50% chemical fertilizer + 50% chicken manure, 25% chemical fertilizer + 75% chicken manure and no fertilizer. The irrigation regimes showed significant effect on the plant seed yield, plant height, number of spike per plant, spike length and mucilage percentage, but was not affected significantly in number of tillers per plant, number of seeds per plant, 1000-seed weights and seed swelling. The greatest seed yield and mucilage percentage were obtained at 7 and 14 days of irrigation regimes respectively. Seed yield, number of tillers per plant, plant height, number of spikes per plant, spike length, number of seeds per plant, 1000-seed weights, mucilage percentage and seed swelling were significantly affected under different fertilizer treatments. The maximum dry weight and seed yield were obtained with 50% and 70% replacement of chemical fertilizer and chicken manure respectively. In summary, our results illustrated that application of 75% chicken manure + 25% chemical fertilizer with 14 days intervals of irrigation was beneficial to isabgol.
