This study was carried out in order to evaluate the changes of Nitrogen, phosphor and potassium uptake by wheat and remaining of them in soil under foliar application of Leonardite and foliar application of N and K. The experiment was conducted in Gorgan University of Agricultural Sciences and Natural Resources during 2013- 2014. The experiment was laid out a using split-plot arrangement based ...

there are many problems in yield, quality and and persistence regular bearing in olive trees, one of these problems is nutritional imbalances. this study carried out in order to evaluate nutritional status of olive orchards in tarom region of zanjan province. samples of soil and leaf were taken from 79 olive orchards in june 2012 and 2013 and were analyzed by using appropriate laboratory method...

We have studied Ca transport and the Ca-activated Mg-ATPase in plasma membrane vesicles prepared from normal human lymphocytes. Membrane vesicles that were exposed to oxalate as a Ca-trapping agent accumulated Ca in the presence of Mg2+ and ATP. ADP, AMP, GTP, UTP, ITP, TTP, or CTP did not substitute for ATP in energizing uptake. The Vmax for Ca uptake was 2.4 pmol of Ca/micrograms of protein/m...

In this study, the plants of maize (Zea mays L.cv.ksc700) were grown in Hoagland solution containing 1, 3 and 5 mM KH2PO4 or K2HPO4 under controlled conditions. At similar levels of mono and diphosphate, plants supplied with monophosphate have produced higher content of dry matter and characterized with higher total chlorophyll content and longer and well proliferated root system than those tre...

This study was carried out in order to evaluate the changes of Nitrogen, phosphor and potassium uptake by wheat and remaining of them in soil under foliar application of Leonardite and foliar application of N and K. The experiment was conducted in Gorgan University of Agricultural Sciences and Natural Resources during 2013- 2014. The experiment was laid out a using split-plot arrangement based ...

Biological cycling of macro-nutrients (N, P, K, Ca, Mg and S) were studied by synthesizing the previous new data from Bruguiera parviflora dominated mangroves at Kuala Selangor Nature Park, Malaysia. The total stock annual accumulation N, S in plant biomass 60.11 kg ha-1y-1; 11.48 ha-1y-1, 36.25 72.75 31.32 ha-1y-1 82.12 respectively. return form litter fall 59.82 ha-1, 10.93 23.43 118.31 29.25...

La deficiencia de hierro existe en casi todos los cultivos del mundo y la habilidad para absorber el varía ampliamente entre especies plantas. Existen grupos plantas que se caracterizan por su capacidad crecer suelos con baja disponibilidad hierro, denominadas Fe-eficientes. En este experimento cultivaron invernadero frijol, una solución nutritiva concentraciones subóptimas óptimas Fe. El objet...