effects of various rates and concentrations of n-p-k on growth ‘rio grande’ tomato seedling

نویسندگان

ozra hassanshahian

jamal javanmardi

mohammad javad behroozbeh

چکیده

tomato  (l.ycopersicon esculentum  mill.) cv. rio grande  seedlings were nutritionally conditioned with solutions complete fertilizer n(60% no3+40% nh4)-p-k (20-20-20) , n(30%no3+70% nh4)-p-k (15-5-30) , the first two week   n(60% no3+40% nh4)-p-k (20-20-20) and later two week  n(30%no3+70% nh4)-p-k (15-5-30)  and vice versa were  applied in  completely randomized experiment with three replications to determine the effect of nutritional regimes on tomato transplant growth. as nitrate rate increased from 30% to 60%, fresh shoot weight, plant height, stem diameter, leaf number, leaf area, shoot and root dry weights, and total chlorophyll increased. in the 750 mg/lit  of n( 60% no3+40%nh4 )-p-k (20-20-20) were decreased and it is with to increasing in stem diameter and total plant growth , application of n(60%no3 + 40%nh 4 )-p-k(20-20-20) in the first  two weeks of seedling growth and n(30%no3+70%nh4)-p-k (15-5-30) in the last two weeks  in the concentration of 200 mg/liter seedling height decreased.

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Effects of Various Rates and Concentrations of N-P-K on Growth ‘Rio Grande’ Tomato Seedling

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عنوان ژورنال:
international journal of advanced biological and biomedical research

ناشر: casrp publishing company

ISSN 2383-2762

دوره 2

شماره 3 2014

میزبانی شده توسط پلتفرم ابری doprax.com

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