LIBROS DEL AUTOR: janet i sprent

2 resultados para LIBROS DEL AUTOR: janet i sprent

janet i sprent Eliminar filtro Quitar filtros
  • Nitrogen Fixing Organisms
    Janet I. Sprent
    A special meeting of the Royal Society in London in 1986 marked the centenary of the first demonstration of nitrogen fixation. Currently the subject is of great practical importance because the use of nitrogenous fertilizers has resulted in unacceptable levels of water pollution; also these fertilizers are becoming steadily less economic both in cash ...
    Disponible

    66,40 €

  • The Ecology of the Nitrogen Cycle
    Janet I. Sprent / Janet ISprent
    Many people learn the rudiments of the nitrogen cycle while at school. However, the details of the various processes in the cycle and their magnitude are still not fully understood. Some of them are of great current interest, for example use of nitrogen fixing crops to feed the increasing world population and the problems of pollution of groundwaters by nitrates. While some of ...
    Disponible

    73,17 €