Quantitative Nutrient Management Reduces Nitrate Accumulation in Hydroponic Butterhead Lettuces Grown under Artificial Lighting
نویسندگان
چکیده
منابع مشابه
Nutrient Management in Recirculating Hydroponic Culture
INTRODUCTION There is an increasing need to recirculate and reuse nutrient solutions in order to reduce environmental and economic costs. However, one of the weakest points in hydroponics is the lack of information on managing the nutrient solution. Many growers and research scientists dump out nutrient solutions and refill at weekly intervals. Other authors have recommended measuring the conce...
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Among factors affecting hydroponic production systems, the nutrient solution is considered to be one of the most important determining factors of crop yield and quality. This chapter aims to explain aspects related to plant nutrition and its effects on production of hydroponic crops, considering basic aspects such as nutrient solutions and their development through the years; components of nutr...
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Growers often apply high amounts of chemical fertilizers for vegetable production and this application contributes to concerns about nitrate levels in food. An experiment was conducted to investigate soil N amendment effects for reducing the nitrate accumulation and improving the quality of fresh purslane (Portulaca ...
متن کاملEffect of Different Nutrient Solutions on The Yield, Chemical Composition and Nitrate Accumulation of Lettuce in Soilless Culture System
An experiment was conducted to select the optimum nutrient solution for growing lettuce (Lactuca sativa L.) under hydroponic conditions (open system) and Shahrekord climate, as a completely randomized design with five different nutrient solutions and three replicates, in Shahrekord University. The nutrient solutions were: 1) Research Station for Floriculture and Greenhouse Vegetables (the Nethe...
متن کاملEffects of Cadmium and Combined Cadmium-Zinc Concentrations on Rooting and Nutrient Uptake of Cowpea Seedlings Grown in Hydroponic
A hydroponic experiment was carried out to investigate the effect of cadmium treatments at (0.3, 0.6, 0.9 and 1.2 mg/l), zinc at (2, 4, 6 and 20 mg/l) and combined cadmium-zinc at (0.6 mg/l Cd plus 2, 4, 6 and 20 mg/l Zn) on rooting, nutrient uptake in cowpea seedling. The results showed that increasing Cd supply markedly reduced the rooting of seedling. Increased Cd accumulation in cowpea seed...
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ژورنال
عنوان ژورنال: HortScience
سال: 2018
ISSN: 0018-5345,2327-9834
DOI: 10.21273/hortsci12418-17