cadmium is one of the most toxic pollutants in the surface soil layer the accumulation of which in soils as well as in crops is of increasing concern. in addition, zinc is a micronutrient in rice nutrition which is in interaction with cd. a pot experiment was carried out to study the effects of zinc and cadmium on rice growth and as well on concentrations of zn, cd, fe and mn in soil. a factori...

such ion-sink methods as feo coated strips, (pi), can adsorb and collect p from soil solution. ion sink methods function similar to plant-root surface, adsorbing available p ions from the p pool in the soil. the objective of this study was to compare pi test with olsen, ab-dtpa, bray 2 and mehlich 2 methods to estimate the availability of soil p in alfalfa (medicago sativa). available p was det...

A pot experiment was conducted to evaluate the effect of synthetic wastewater containing various concentrations of cadmium and chromium on Eucalyptus camaldulensis. Six month-old seedlings of E. camaldulensis were treated with Cd (II) and Cr (VI) for 18 months. Treatments were; T0: (Tap water, control), T1: 0.05 +1.0 mg L, T2: 0.10+2.0 mg L, T3: 0.20+4.0 mg L and T4: 0.40+8.0 mg L of Cd and Cr ...

BACKGROUND Blind and excessive application of fertilizers was found during the cultivation of Panax notoginseng in fields, as well as increase in root rot disease incidence. METHODS Both "3414" application and orthogonal test designs were performed at Shilin county, Yunnan province, China, for NPK (nitrogen, phosphorus, and potassium) and mineral fertilizers, respectively. The data were used ...

Growth suppressive role of waterlogging (WL) as an important abiotic stress to perennial plants is well known. A pot experiment was conducted to study a potential contribution of arbuscular mycorrhizal fungi (AMF, Diversispora spurca) on WL tolerance of trifoliate orange (Poncirustrifoliata L. Raf.) seedlings on the basis of growth, root system architecture, and antioxidant enzymes. Four-month-...

Quantitative study of root morphological characteristics of plants is helpful for understanding the relationships between their morphology and function. However, few studies and little detailed and accurate information of root characteristics were reported in fine-rooted plants like rice (Oryza sativa L.). The aims of this study were to quantitatively classify fine lateral roots (FLRs), thick l...

Biosolids are utilized as nutrient rich fertilizer. Little material is available on benefits to forage crops resulting from fertilization with biosolids. This paper aimed to compare the effects of fertilization with biosolids versus commercial nitrogen fertilizer on growth, root formation, and nutrient value of triticale plants in a greenhouse experiment. Per treatment, five pots were seeded wi...

abstract nowadays, soil pollution with heavy metals has become a major problem which their accumulation in plants can directly or indirectly influence on animals and humans life. lead and cadmium are poisonous metals, with increasing the amount of these metals in environmental pollution; they will be increased in food chain significantly. in this research, three levels of cadmium (0, 100 and 20...

Development of root growth is impaired by environmental and chemical effectors although the mechanism is not known. Here, we used pot experiment for cultivation of rice (Oryza sativa) to identify the factors involved in impaired growth of root and to explore the effects of cold acclimation and arsenic on the amylase and urease activity in root. The amylase activity was increased whenever expose...