Mahdieh Fallah; Hashem Hadi; Reza Amirnia; Abdollah Hasanzadeh Gorttapeh
Abstract
The present experiment has been conducted as a factorial based on randomized complete block design with three replications in the Agricultural and Natural Resources Research farm of Urmia for two years (2017-2018) to investigate the effect of green manure residues and fertilizer sources on physiological ...
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The present experiment has been conducted as a factorial based on randomized complete block design with three replications in the Agricultural and Natural Resources Research farm of Urmia for two years (2017-2018) to investigate the effect of green manure residues and fertilizer sources on physiological traits, biological yield, and seed oil content of linseed. Experimental factors include green manure in two levels: no green manure and red clover (Trifolium pratense), different sources of fertilizer in four levels: no fertilizer, mycorrhiza, vermicompost and mycorrhiza + vermicompost, both in full irrigation condition and irrigation terminationat the flowering stage. Results of the combined analysis show that the year has a significant effect on chlorophyll a, colonization percentage, grain nitrogen and phosphorus, biological yield, and seed oil. Irrigation termination treatment decreases all traits except proline and soluble carbohydrate contents. Green manure, mycorrhizae, and vermicompost significantly increase the studied traits at both irrigation levels, except for grain nitrogen, not affected by green manure. The application of mycorrhiza+ vermicompost, with or without green manure, is more effective than their individual applications. The dual application results in an increase of 68.98% and 61.34% for biological yield and 11.8% and 4.5% for seed oil, compared to the control in complete irrigation treatment, respectively. In general, green manure, mycorrhiza, and vermicompost can improve the quantitative and qualitative performance of flaxseed in irrigation terminationat the flowering stage.
Simin Faraji; Mohamad Rafieiolhossaini; Ali Abasi Soorki
Abstract
In order to study the effect of solitary and combined application of two types of green manure, cow manure, Barvar-2 phosphate fertilizer and conventional chemical fertilizer on some of the qualitative and quantitativeproperties of sugar beet, an experiment was conducted at the research farm of Shahrekord ...
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In order to study the effect of solitary and combined application of two types of green manure, cow manure, Barvar-2 phosphate fertilizer and conventional chemical fertilizer on some of the qualitative and quantitativeproperties of sugar beet, an experiment was conducted at the research farm of Shahrekord University in 2013. The experimental design was randomized in a complete block design with three replications and 12 treatments including: 1- control, 2-Pisum + Triple Super Phosphate (TSPh), 3-Lathyrus + TSPh, 4-Barvar-2 phosphate + Urea, 5-Cow manure (Cm) + TSPh, 6-Conventional manure, 7-Pisum + Barvar-2 phosphate, 8- Lathyrus + Barvar- phosphate 2, 9-Pisum + Cm + TSPh, 10-Lathyrus + Cm + TSPh, 11-Pisum + Cm + Barvar-2 phosphate and 12-Lathyrus + Cm + Barvar-2 phosphate. The results showed that fertilizer treatments had a significant effect on root yield, sugar yield, white sugar yield and harmful nitrogen whereas combined treatments of 8, 10, 11 and 2 had the highest means for root yield, sugar yield and white sugar yield. Application of green manure, farm yard manure and their combinations along with Barvar phosphate biological fertilizer increased root yield of sugar beet between 10-18 and 32-68 percent compared with conventional chemical fertilizer and control, respectively. The lowest amount of harmful nitrogen was related to the treatments of 10 and 11. From the viewpoint of the other studied traits, combined treatments of organic and bio-fertilizers were quite acceptable.