To investigate the role of intracellular potassium (K(i))and other ions in hypertension and diabetes, we utilized (39)K-, (23)Na-, (31)P-, and (19)F-nuclear magnetic resonance (NMR) spectroscopy to measure K(i), intracellular sodium (Na(i)), intracellular free magnesium (Mg(i)), and cytosolic free calcium (Ca(i)), respectively, in red blood cells of fasting normotensive nondiabetic control subj...

Abstract. Soil ecological stoichiometry offers a tool to explore the distribution, cycling, limitation, and balance of chemical elements in tea plantation ecosystems. This study aimed how soil organic C (OC) nutrient contents (total N (TN), total P (TP), Ca2+, Mg2+, Fe2+, Mn2+) as well their stoichiometric ratios (C/N, C/P, N/P, Ca/Mg, Fe/Mn) varied with age (8, 17, 25, 43 years) depth (0–10, 1...

The interaction between sodium and calcium, magnesium and calcium and the combined effect of sodium, magnesium and calcium was observed on the growth and ion uptake of Hippophae rhamnoides L. The results demonstrated that an addition of sodium with calcium, (set a, Na 2.5 + Ca 5 mM) showed prominent increase in fresh weight of roots and shoots. The dry weight (average) of roots decreased an...

Optimized nitrogen (N) management reduces total N application without sacrificing cropyield. However, the underlining mechanisms have not been well investigated, especially lackingthe evidence from roots. Here we performed a two-year field experiment with maize grownunder zero-N, conventional N and optimized N applications and examined grain yield, N,phosphorous (P) and potassium (K) uptake and...

The aim of the study was to evaluate content and uptake macronutrients (P, Ca, Mg, K) in Solanum tuberosum tubers effect care with biostimulants from a three-year field experiment conducted at Agricultural Experimental Station Zawady, Poland. set up split-plot arrangement three replications. first factor two varieties edible potato (Oberon Malaga), second five treatments herbicide biostimulants...

A six months study was carried out in an alternative shrimp paddy cultivation plot situated Khulna District, Bangladesh. In soil, the mean values of sodium (Na) 13.33 mg l-1, calcium (Ca) 42.12 potassium (K) 472.50 iron (Fe) 1.01 phosphorus (P) 7.05 sulfur (S) 46.67 ammonium-nitrogen (NH4+-N) 247.68 nitrate-nitrogen (NO3--N) 114.78 pH 8.09, Electric conductivity (EC) 4.45 ms m-1, redox potentia...

Application of nutrients to correct nutrient deficiencies in turfgrasses are often based on tissue analysis. Previous research has indicated that near infrared reflectance spectroscopy (NIRS) may be useful in tissue nutrient concentration determination since it requires minimum sample preparation and has been a reliable predictor of N concentration. The objective of this study was to evaluate t...

Trees improve the soil quality and their rapid growth in the tropics make agroforestry systems potentially effective for establishing low-input agricultural systems in this region. This study assessed the effects of the biophysical interactions among leguminous trees, weeds, cotton and maize in an alley cropping system. The experiment comprised six treatments: Clitoria + Gliricidia; Acacia ...

After the Tokyo Electric Power Company’s Fukushima Dai-ichi Nuclear Plant accident in 2011, radioactive cesium (RCs) was released greater concentrations than strontium (RSr) surrounding environment. Most of countermeasures were developed to mitigate RCs transfer from soil plants. However, avoid what has happened after Chernobyl and Mayak accidents, preventing RSr plants should be a priority. Al...