Effect of Ammonium Nitrate and Free Amino Acids on the Nitrate Accumulation in Radish
Abstract:
Overuse of nitrogen fertilizer may result in nitrate accumulation in vegetables. The objective of this study was to determine the effect of Ammonium nitrate fertilizer and foliar application of mixed amino acids on the yield and nitrate accumulation in radish (Raphanus sativus). The experiment was based on the randomized complete blocks design and was carried out in pots filled with 6 kg of agricultural soil in factorial form with three replications. Three levels of nitrogen fertilizer (ammonium nitrate), N1: 0 mg, N2: 45 mg, N3:90 mg per one kg of soil and three levels of mixed amino acids (provided by Inagrosa company, Spain) A1: 0, A2: 1.5 and A3: 3 ml per one liter of water were used. Based on the results, the interaction effects of N fertilizer and amino acid application were significant on the yield and nitrate concentration. The results showed that the highest yield was in treatment N3A3 (2489 gr per pot) compared with the other treatments. Nitrate concentration in leaves and glands was increased with increasing the amount of ammonium nitrate. The highest concentration of nitrate in leaves was in treatment N3A1 (431 mg kg-1FW) and in glands was in treatment N3A2 (1331 mg kg-1FW). In leaves, foliar application of amino acid increased the total N and decreased the nitrate concentration. Foliar application of amino acids affected the nitrate reductase and glutamine synthetase and decreased the nitrate accumulation in leaves but had no effect on nitrate concentration of glands.
Language:
Persian
Published:
Journal of Water and Soil Science, Volume:26 Issue: 4, 2017
Pages:
67 to 78
magiran.com/p1662486  
دانلود و مطالعه متن این مقاله با یکی از روشهای زیر امکان پذیر است:
اشتراک شخصی
با عضویت و پرداخت آنلاین حق اشتراک یک‌ساله به مبلغ 990,000ريال می‌توانید 70 عنوان مطلب دانلود کنید!
اشتراک سازمانی
به کتابخانه دانشگاه یا محل کار خود پیشنهاد کنید تا اشتراک سازمانی این پایگاه را برای دسترسی نامحدود همه کاربران به متن مطالب تهیه نمایند!
توجه!
  • حق عضویت دریافتی صرف حمایت از نشریات عضو و نگهداری، تکمیل و توسعه مگیران می‌شود.
  • پرداخت حق اشتراک و دانلود مقالات اجازه بازنشر آن در سایر رسانه‌های چاپی و دیجیتال را به کاربر نمی‌دهد.
دسترسی سراسری کاربران دانشگاه پیام نور!
اعضای هیئت علمی و دانشجویان دانشگاه پیام نور در سراسر کشور، در صورت ثبت نام با ایمیل دانشگاهی، تا پایان فروردین ماه 1403 به مقالات سایت دسترسی خواهند داشت!
In order to view content subscription is required

Personal subscription
Subscribe magiran.com for 50 € euros via PayPal and download 70 articles during a year.
Organization subscription
Please contact us to subscribe your university or library for unlimited access!