نتایج جستجو برای: were grown in hoagland nutrient solution containing s10
تعداد نتایج: 17163238 فیلتر نتایج به سال:
Abstract In this study, the effect of nitrate to ammonium ratio and pH of nutrient solution on the changes in pH and EC of rhizosphere during spinach growth period in perlite culture, under greenhouse conditions, was investigated. A split factorial experiment in a completely randomized design with four replications was conducted with three factors including nutrient solution’s pH in three leve...
In order to study the effect of nitrogen form and pH of nutrient solution on the shoot concentration of P, nitrate, organic N + inorganic ammonium, and total N of spinach, a factorial experiment was conducted with two factors including pH of nutrient solution in three levels (4.5, 6.5 and 8.0) and nitrate to ammonium ratio of nutrient solution in five levels (100:0, 75:25, 50:50, 25:75 and 0:10...
The interactive effects of N (6, 9, 12 and 15 mmol L-1) and K (3, 5, 7, and 9 mmol L-1) concentrations in nutrient solutions were evaluated on bell pepper grown in a coconut-coir substrate and fertilized without drainage. An additional treatment with drainage was evaluated using N and K concentrations of 12 and 7 mmol L-1, respectively. The hybrid Eppo cultivar of yellow bell pepper was cultiva...
The structure and chemical properties of strontium calcium are similar. To study the interplay between in plants, different concentrations SrCl 2 (0, 1, 4, 10 mmol·L −1 ) were added to Hoagland nutrient solution with 4 Ca 2+ (normal level or 0.4 (low-level ), which used cultivate Chinese cabbage seedlings. Under low-level condition, not only did promote growth but showed more severe toxicity co...
abstract sensitive and precise voltammetric methods for the determination of trace amounts of furaldehydes, mainly as furfural (f) and 5-hydroxymethyl-2-furaldehyde (hmf), in waste waters and other matrices is described. determination of total furaldehyde at < ?g g-1 levels in alkaline buffered aqueous media was individually investigated. by the use of ordinary swv and adsorptive square wave ...
Global phosphate mineral resources are nonrenewable and inevitably depleting. Exploiting elite varieties has become imperative for the efficient use of phosphorus (P) sustainable crop production. Three potato were hydroponically evaluated P mobilization, uptake, utilization efficiencies at different levels sources during 28 d seedling growth. ‘Harley Blackwell’, ‘La Chipper’, ‘Red LaSoda’ selec...
Weathering of K-bearing minerals as the major source of potassium in soils is of special importance under K deficient conditions. Many studies have been carried out on the effect of plant types and microorganisms on the transformation of micaeous minerals and their potassium release. However, there is no information on the effect of organic matter on mineralogical changes in micaceous minerals....
Nutrient film technique (NFl) and deep water culture (DWC) hydroponic systems were used in a split-root study of the effect of four treatments on sweetpotato yield, the translocation of assimilates, and microbial population count. 'TU-155' cuttings (15 cm) were prerooted for 30 days in sand using deionized water and a modified half-Hoagland (MHH) solution. After 30 days, the plants were removed...
Nutrient deficiency symptoms are widely used to determine the nutrient demands of a crop and clarify nutritional disorders, especially when they specific. Until now, calcium (Ca), magnesium (Mg) boron (B) experiment has not been carried out on feijoa, diagnostic have described. For this reason, 9-months-old ‘Quimba’ feijoa plants were studied using missing method. A modified Hoagland Arnon solu...
The effect of various concentrations of sulphates in the nutrient solutions (I – 200, II – 400, and III – 600 mg SO4 2dm) on sulphur content in plants as well as plant height and leaf area of tomato plants grown with nutrient film technique (NFT) were investigated. Total-S and S-SO4 levels were determined in the leaf blades of the upper, medium and lower plant parts, during 3 phases of tomato g...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید