Abstract Super absorbent polymer is a new type of functional material that has been researched in recent decades. Due to its special structure and water-absorbing water-retaining properties, it broad field drought resistance, soil improvement crop protection. It conditioner agricultural drought-resistant water-saving materials. Combining with fertilizers prepare forestry slow-release functions,...

Abstract: The objective of this work was to evaluate the performance thermopotassium and thermophosphate agrominerals, as sources P K, in an organic pasture consortium 'Marandu' Urochloa brizantha + Stylosanthes spp. Brazilian Cerrado. management compared with conventional farming using chemical fertilizers, during three years, two adjacent experiments, one other without previous growth green m...

Slow-release fertilizers are gaining acceptance to increase fertilizer use efficiency and reduce environmental impact. The release of nitrogen from methylene urea, a common slow release N fertilizer, is controlled by microbial decomposition. An enzyme hydrolyzing slowrelease nitrogen fertilizer, methylene urea, was purified from Rhizobium radiobacter (Agrobacterium tumefaciens) to homogeneity u...

Biochar, an organic product of thermal decomposition biomass in oxygen limited environment can be used as a nutrient carrier to delay the release nutrients into soil, reduce leaching, and improve utilization efficiency fertilizers. Nutritional enhancement biochar through fertilizer blending could low cost but high solution compared non-blended However, rate from blended different soils is ambig...

In a double-blind cross-over study, the effects of slow release (S-R) terbutaline tablets (b.i.d. 0.25 mg/kg per day) and S-R theophylline (5.31 mg/kg morning and 10.62 mg/kg evening) were compared in eleven patients with nocturnal asthma. On day seven of each treatment period, drug serum concentrations and peak expiratory flow (PEF) were measured every 2h over a 24-h period. During daytime, te...