سیویلیکا را در شبکه های اجتماعی دنبال نمایید.

تعیین شاخص های ‭DOP ‬و بررسی وضعیت تجمع نیترات در میوه خیار گلخانه ای استان یزد

نوع محتوی: طرح پژوهشی
Language: Persian
استان موضوع گزارش: البرز
شهر موضوع گزارش: کرج
Document National Code: R-1091839
Publish: 16 February 2019
دسته بندی علمی: علوم کشاورزی
View: 336
Pages: 23
Publish Year: 1393

نسخه کامل Research منتشر نشده است و در دسترس نیست.

  • I'm the author of the paper

Export:

Link to this Research:

تعیین شاخص های ‭DOP ‬و بررسی وضعیت تجمع نیترات در میوه خیار گلخانه ای استان یزد abstract

‭One way to Increase the efficiency of greenhouses is proper nutrition. Proper nutrition cause optimization use of fertilizer, reduced costs, increase of product safety, yield increase and reduced pollution of soil and water resources. Plant analysis is one of the most useful existing tools for evaluation of status nutritional in agricultural products. Practical value of plant analys in order to fertilizer recommendation is dependent on its the accurate interpretation. DOP is one of the methods presented interpretation of plant analysis results. Based on this method the priority or nutrients deficiency order is obtained. In order to assess the nutritional balance using DOP method to define standard norms for nutrients in the cucumber greenhouses, grown in two consecutive seasons the leaves samples from Yazd province greenhouse were collected. Greenhouses were devided into two groups of high yield (reference group) and low and averaging of nutrients percent in high yielding group, the standard concentration (Cref) was obtained for each element which were used for calculation of DOP (Deviation from Optimum Percent). Based on this index value, the priority or the order of nutrient requirement was obtained. Results obtained from nutritional balance determination in greenhouse shows un- optimum nutritional management of plant. Deficiency of major nutrients (N, P and K) were obviocy at the most greenhouse evaluated in the first and second cropping season. For mocro nutrients, also there was inbalances and considerable differences were observed among the province Greenhouses. Keywords : Plant Analysis, Nutrients Status, Greenhouse Cucumber, Deviation from Optimum percent (DOP), norm values.‬

تعیین شاخص های ‭DOP ‬و بررسی وضعیت تجمع نیترات در میوه خیار گلخانه ای استان یزد authors