Effects of nitrogen, phosphorus, potassium and magnesium on growth, mineral composition...

AN EXPERIMENT IN THE APPLICATION OF MICROCOMPUTERS TO SMALL FIRMS

not available

Morphological and physiological effects of girdling on rooting of the wood cuttings...

Effects of phosphorus and zinc interactions on seed production and quality of grain...

Digestibility and biological value of the yeast protein (Saccharomyces spp.) and...

Peat soils drainage problems

Síntese de reatividade de complexos de ferro com ligantes homocíclicos de caráter...

Effects of gypsum as a source of calcium and sulfur for sugar cane (Saccharum officinarum...

not available