effects of various rates and concentrations of n-p-k on growth ‘rio grande’ tomato seedling
نویسندگان
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.
منابع مشابه
Effects of Various Rates and Concentrations of N-P-K on Growth ‘Rio Grande’ Tomato Seedling
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...
متن کاملEffects of Various Rates and Concentrations of N-P-K on Growth ‘Rio Grande’ Tomato Seedling
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...
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the aim of this study was to evaluate the effect of different potassium (k) and nitrogen (n) concentrations in nutrient solution and their interaction on growth and quality of tomato transplants. a full factorial experimental design was carried out with three potassium concentrations (1.5, 3 and 6 meql-1) and three nitrogen concentrations (1.5, 3 and 6 meql-1) for 27 days after seed germination...
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عنوان ژورنال:
international journal of advanced biological and biomedical researchناشر: casrp publishing company
ISSN 2383-2762
دوره 2
شماره 3 2014
کلمات کلیدی
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