نتایج جستجو برای: soilless culture
تعداد نتایج: 277883 فیلتر نتایج به سال:
Tomato is the main vegetable cultivated under soilless culture systems (SCSs); production of organic tomato SCSs has increased due to consumer demands for healthier and environmentally friendly vegetables. However, been associated with low crop performance fruit quality defects. These agricultural deficiencies could be linked alterations in plant microbiota; nonetheless, this issue not sufficie...
Humic acid (HA) with pseudo-hormonal activity has an important effect on nutrients uptake, yield and quality of crop products. Therefore, this experiment was conducted in soilless condition to evaluate the best HA concentration (0, 250, 500, 750 and 1000 MG/l) of nutrition solution and its effects on morphological traits, nutrients uptake, and postharvest vase life of pot marigold. Based on the...
abstract soilless culture of greenhouse vegetables has been a fast developing section in iran during recent years. most growers use hydroponics systems with artificial substrates. some of the used substrates have low water retention which results in wasting a great deal of solution. on the other hand, low vigor of cucumber root in water and fertilizer absorption, especially in low media tempera...
the objective of this study was to evaluate the effect of nacl application on yield and some growth parameters of tomato (lycopersicum esculentum cv. falkato). the study was carried out during september 2005 until may 2006 using soilless culture. the plants were fed with a complete nutrient solution, of electrical conductivity at levels of (a) 1.5 (control) (b) 3.5, (c) 5.5, (d) 6.5 dsm-1 repli...
soilless culture of greenhouse vegetables has been a fast developing section in iran during recent years. most growers fertigate plants without enough knowledge about plant water requirements. since some soilless substrates have low water retention capacity, wasting a great amount of nutrient solution can be occurred due to poor management. in this research work, effects of hydro gel amendment ...
A composite model was developed for water and mineral relations of greenhouse tomato (Solanum lycopersicum L.) cultivated in semi-closed or open soilless (rockwool) culture. The model simulated on a daily basis: (i) the evolution of crop leaf area index and water uptake using empirical equations; and (ii) the variations of ion concentrations and electrical conductivity (EC) in the recirculating...
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