Ammonium fixation and release by clay minerals as influenced by potassium
نویسندگان
چکیده
منابع مشابه
kinetics of potassium release from moscuvite and phlogopite as influenced by organic acids
the release rate of potassium (k) from micaceous minerals plays a significant role in supplying k to plants. the objective of this study was to determine the most appropriate kinetic equation to describe potassium release from micaceous minerals as influenced by organic acids. muscovite and phlogopite were made to react with 0, 500, 2000 and 4000 ?m solutions of oxalic, citric and malic acids f...
متن کاملpotassium release from muscovite and phlogopite as influenced by selected organic acids
abstract low molecular weight carboxylic acids (lmw) play an important role in improving the bioavailability of soil nutrients. nonexchangeable soil k, trapped between the interlayers of clay minerals, is an important source of k for plants in many soils. the objectives of this study were to determine the effect of selected lmw organic acids on the release of k from micaceous minerals and to in...
متن کاملMobility of zinc and copper in contaminated clay soil influenced by Actinidia deliciosa and incubation times
As a low cost byproduct, Actinidia deliciosa shell can be made into sorbent materials which are used in heavy metals immobilization. It has been investigated as a replacement for currently expensive methods of heavy metal immobilization from soil. In this study, soil samples were contaminated with copper (Cu) and zinc (Zn) at the rate of 600 ppm in separate dishes. The 5% Actinidia deliciosa sh...
متن کاملChanges in Different Forms of Potassium and Clay Minerals in Soils as Influenced by Different Aged Orange Trees (Citrus sinensis) in Darab, Fars Province
Despite the great importance of potassium applied as a fertilizer in the orange orchards, no information is currently available regarding the rate of potassium release from rhizosphere and the bulk soils of such trees. The objectives of this study were to investigate the weathering of micaceous minerals and their non-exchangeable K release and also, to examine the status of different forms of K...
متن کاملSynthesis of Ammonium Dinitramide by Nitration of Potassium and Ammonium Sulfamate. The Effect of Sulfamate Conterion on ADN Purity
Nitration of potassium sulphamate was carried out using a mixture of sulphuric and nitric acid at -30 °C. The reaction time was optimized at the mole ratio of sulphuric to nitric acid of (1:3.5). The difference in product yield by changing the potassium to ammonium sulphamate was studied throughly. It was found that both the yield and purity of the product is better starting with potassium ...
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ژورنال
عنوان ژورنال: Plant, Soil and Environment
سال: 2014
ISSN: 1214-1178,1805-9368
DOI: 10.17221/202/2014-pse