Hydrogen ions in precipitation are correlated much more closely with sulfate than with nitrate, whereas ammonium ions are correlated more closely with nitrate than with sulfate. Target loadings of 14 to 16 kilograms of wet sulfate deposition per hectare per year, instead of 20 as suggested hitherto, are probably necessary to produce average pH values of 4.6 to 4.7, the approximate boundary leve...

to evaluate the anti-transpiration effect on yield and yield components of corn late yield 704 under drought stress experiment split factorial randomized complete block design with three replications in spring 2012 at the research station, kermanshah. and paclobutrazol treatments include salicylic acid, which is taking on two levels. based on the values determined in the following order foliar ...

The cocoa cabruca is as an agroforestry system with a density of trees equal to or greater than twenty individuals native species per hectare cultivated in association exotic discontinuous and random way the Atlantic Forest biome.It difficult separate areas cacao from Dense Ombrophilous by existing satellite imaging techniques.The study was developed southern region Bahia, on two properties mun...