Abstract
Tomato (Solanum lycopersicum L.) is a highly economical and socially important vegetable in the world and a priority crop in greenhouse cultivation. Plant growth and yield increments through the over application of nitrogen and potassium fertilizers are commonplace in soilless culture in many regions of the world. It deteriorates the quality of produce, apart from the ill effects of this malpractice on the economic and environmental sustainability of the cropping system. The utilization of residual nutrients in the plants during subsequent growth stages; carryover effect has not much evidence for hydroponically grown plants. Therefore, this study was to find out the possible influence of the carryover effect of higher dosages of N and K fertilizer application at the vegetative stage on subsequent growth stages of tomato. This experiment was conducted as a replicated trial of different combinations of N and K rates for vegetative and other growth stages. The application of low rates of N and K during the vegetative stage did not affect the total marketable yield, nullifying the carryover effect of K and N plant nutrition of hydroponics tomato. Therefore, the optimum N application rates for vegetative, early reproductive, middle and late reproductive stages of hydroponics tomato were 10, 50, 90 and 140 mg/plant/day, respectively and optimum K rates 50, 200, 300 and 350 mg/plant/day respectively. Growth stage specific combinations of optimum N and K fertilizer application rates were effective in attaining the yield and quality targets of hydroponics tomato while their contribution to possible minimization of environmental pollution.
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Claims 4
Claim · model-written summary
Low rates of N and K applied during the vegetative stage did not affect total marketable yield of hydroponic tomato.
- Taxon
- tomato
Solanum lycopersicume2 - Organ / stage
- vegetative stagee1
- Treatment
- application of low rates of N and Ke1
- Outcome
- total marketable yielde1
- Direction
- did not affecte1
- Setting
- hydroponicse2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The application of low rates of N and K during the vegetative stage did not affect the total marketable yield”
e2“nullifying the carryover effect of K and N plant nutrition of hydroponics tomato”
Claim · model-written summary
Optimum N application rates for the vegetative, early reproductive, middle and late reproductive stages of hydroponic tomato are 10, 50, 90 and 140 mg/plant/day.
Verbatim
e3“Therefore, the optimum N application rates for vegetative, early reproductive, middle and late reproductive stages of hydroponics tomato were 10, 50, 90 and 140 mg/plant/day, respectively”
Claim · model-written summary
Optimum K rates for the same growth stages of hydroponic tomato are 50, 200, 300 and 350 mg/plant/day.
Verbatim
e3“Therefore, the optimum N application rates for vegetative, early reproductive, middle and late reproductive stages of hydroponics tomato were 10, 50, 90 and 140 mg/plant/day, respectively”
e4“optimum K rates 50, 200, 300 and 350 mg/plant/day respectively”
Claim · model-written summary
Stage-specific combinations of optimum N and K application rates were effective in attaining the yield and quality targets of hydroponic tomato.
- Taxon
- hydroponics tomatoe5
- Treatment
- Growth stage specific combinations of optimum N and K fertilizer application ratese5
- Outcome
- attaining the yield and quality targetse5
Not reportedComparatorDirection
Verbatim
e5“Growth stage specific combinations of optimum N and K fertilizer application rates were effective in attaining the yield and quality targets of hydroponics tomato”
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