дефицит

Последние новости в разделе дефицит




17.03.2010 (14:30) Естественные науки >> Биология
Дефицит фосфора – это серьёзная угроза для пищевой промышленности
Фосфор так же важен для сельского хозяйства, как и вода. Данный элемент поступает в организм культурных растений из почвы. Он является весьма важным для плодородия почв и оказывает значительное влияние на урожаи сельскохозяйственных культур. Отсутствие фосфора в почве ...>>


дефицит, архив по датам

дефицит, архив за текущий месяц

December 2024
MnTuWeThFrSaSu
      1
2345678
9101112131415
16171819202122
23242526272829
3031     

Полный архив раздела дефицит

2008
January
February
March
April
May
June
July
August
September
October
November
December
2009
January
February
March
April
May
June
July
August
September
October
November
December
2010
January
February
March
April
May
June
July
August
September
October
November
December
2011
January
February
March
April
May
June
July
August
September
October
November
December
2012
January
February
March
April
May
June
July
August
September
October
November
December
2013
January
February
March
April
May
June
July
August
September
October
November
December
2014
January
February
March
April
May
June
July
August
September
October
November
December
2015
January
February
March
April
May
June
July
August
September
October
November
December
2016
January
February
March
April
May
June
July
August
September
October
November
December
2017
January
February
March
April
May
June
July
August
September
October
November
December
2018
January
February
March
April
May
June
July
August
September
October
November
December
2019
January
February
March
April
May
June
July
August
September
October
November
December
2020
January
February
March
April
May
June
July
August
September
October
November
December
2021
January
February
March
April
May
June
July
August
September
October
November
December
2022
January
February
March
April
May
June
July
August
September
October
November
December
2023
January
February
March
April
May
June
July
August
September
October
November
December
2024
January
February
March
April
May
June
July
August
September
October
November
December




Rambler's Top100