@article { author = {Afsharmanesh, R and Rahimi, A and Torabi, B and Akhgar, A}, title = {Effects of Vermi compost and Compost tea Application on the Growth criteria of Corn (Zea mays)}, journal = {Iranian Journal of Field Crops Research}, volume = {14}, number = {1}, pages = {185-199}, year = {2016}, publisher = {Ferdowsi University of Mashhad}, issn = {2008-1472}, eissn = {2423-3978}, doi = {10.22067/gsc.v14i1.37358}, abstract = {Introduction Maize (Zea mays) is a cereal crop that is grown widely throughout the world in a range of agroecological environments. .Its value as a cost-effective ruminant feed is one of the main reasons that farmers grow it. However, lack of nutrients such as N and P, are the principal obstacles - to crop production under low input agricultural systems leading to dependency on chemical fertilizers. Long-term use of chemical fertilizers destroy soil physicochemical properties and it reduced permeability which restricts root growth, nutrient uptake and plant production. Therefore, the use of organic fertilizers can help to enrich the soil root zone As a result growth and yield will improve. Materials and Methods In order to study the effects of different levels of vermicompost and foliar application of tea compost on growth characteristics of the hybrid maize genotype 713, a greenhouse experiment was conducted as a factorial experiment in randomized complete block design with three replications at the Vali-e-Asr University of Rafsanjan, during 2013. Treatments were included vermicompost (0, 5%, 10%, 15%, 20%, 25% and 30% pot weight) and tea composts (foliar application, non-foliar application). Measured traits were included root dry weight, root volume, leaf dry weight, stem dry weight, macro nutrient concentration (N and P) and micro nutrient concentration (Zn, Mn, Fe and Cu). All the data were subjected to the statistical analysis (two-way ANOVA) using SAS software (SAS 9.1.3). Differences between the treatments were performed by Duncan’s multiple range test (DMRT) at 1% confidence interval. Results and Discussion Results indicated that leaf and stem dry weight affected by the application of vermicompost and tea compost. However, the interaction effects had no significant effects on the leaf and stem dry weight. Application of tea compost increased 20% and 50% leaf dry weight and stem dry weight of corn compared to non- foliar application, respectively. The highest leaf dry weight and stem dry weight observed at 25% pot weight vermi compost, and lowest leaf and stem dry weight observed in control. Root volume and root dry weight affected by the interaction effects of vermi compost and tea composts. The highest root dry weight and root volume observed in 30% weight in non-foliar application condition. The highest root dry weight and root volume observed in 15% pot weight in tea compost application condition. It is also resulted that Fe concentration of shoot had affected by the application of tea compost, and using vermi compost affected the concentration of Zn, Fe and N in shoot. Application of tea compost increased 15% Fe concentration of shoot compared to non- foliar application. Using vermi compost of 30, 30 and 15% per pot weight increased concentration of Fe, N and Zn of corn shoot, respectively. Result indicated that Mn, Cu and P concentration of corn shoot affected by interaction effects of vermicompost tea compost. It is also resulted that the highest concentration of Mn, and Cu observed in 15% pot weight in tea compost application condition and the highest concentration of P observed in 5% pot weight in tea compost application. Conclusions Nutrient contents of vermicompost and tea compost are comparable with other organic fertilizers. Totally, it seems that using tea compost foliar application due to bioavailability nutrient could decrease the amount of vermicompost application.}, keywords = {leaf dry weight,Macro nutrient,Micro nutrient,Root volume,Stem dry weight}, title_fa = {تأثیر کاربرد ورمی‌کمپوست و محلول‌پاشی چای‌کمپوست بر خصوصیات رشدی گیاه ذرت}, abstract_fa = {به منظور مطالعه اثر سطوح مختلف ورمی‌کمپوست و محلول‌پاشی چای کمپوست بر خصوصیات رشدی گیاه ذرت، آزمایشی به‌صورت فاکتوریل بر پایه بلوک‌های‌ کامل‌ تصادفی در سه تکرار در گلخانه دانشکده کشاورزی دانشگاه ولی عصر (عج) رفسنجان در سال 1392 انجام شد. تیمارها شامل ورمی‌کمپوست (0، 5، 10، 15، 20، 25 و 30 درصد وزنی) و چای‌کمپوست (محلول‌پاشی و عدم محلول‌پاشی) بود. صفاتی که در این آزمایش اندازه‌گیری شد شامل وزن خشک برگ، ساقه و ریشه، حجم ریشه، غلطت روی، مس، منگنز، آهن، نیتروژن و فسفر اندام هوایی بود. نتایج نشان داد که محلول‌پاشی چای‌کمپوست سبب افزایش وزن خشک برگ، ساقه و غلظت آهن در ذرت شد. ورمی‌کمپوست در سطح 25، 25، 30، 30 و 15 درصد وزنی به‌ترتیب باعث افزایش وزن خشک برگ، ساقه و غلظت آهن، نیتروژن و روی در اندام هوایی شد. نتایج همچنین نشان داد که در شرایط عدم محلول‌پاشی چای‌کمپوست بیشترین وزن خشک ریشه، حجم ریشه و غلظت منگنز، فسفر و مس اندام هوایی به‌ترتیب در سطوح 30، 30، 30، 25 و 30 درصد وزنی ورمی‌کمپوست به‌دست آمد و در شرایط محلول‌پاشی چای‌کمپوست بیشترین وزن خشک ریشه، حجم ریشه و غلظت منگنز و مس اندام هوایی در تیمار 15 درصد وزنی ورمی‌کمپوست و بیشترین میزان فسفر اندام هوایی در تیمار 5 درصد وزنی ورمی‌کمپوست به‌دست آمد. به‌طور کلی در شرایط محلول‌پاشی چای‌کمپوست به دلیل فراهمی بیشتر عناصر غذایی میزان کود کمتری مورد نیاز است.}, keywords_fa = {حجم ریشه,عناصر پرمصرف,عناصر کم‌ مصرف,وزن خشک برگ,وزن خشک ساقه}, url = {https://jcesc.um.ac.ir/article_37571.html}, eprint = {https://jcesc.um.ac.ir/article_37571_dea6883d772df3b076b45e4a2fd800de.pdf} }