
BPCMA - Bases de la fertilisation
Authored by Marie-Lucie PIERRAT
Science
9th - 12th Grade
Used 3+ times

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9 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Indique la forme d'azote que les plantes sont capables d'absorber par leurs racines :
l'urée
l'ammoniac
le nitrate
l'ammonitrate
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Indique à quel type d'engrais correspond la fumure de fond.
P et K
P et Ca
P et Mg
K et Mg
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Indique quelle est la catégorie d'éléments minéraux que les plantes utilisent en plus faible quantité.
les éléments mineurs
les oligo-éléments
les micro-éléments
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Indique l'un des rôles important du phosphore dans les plantes.
la croissance des racines
la croissance des feuilles
la solidité des tiges
la qualité des grains
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Complète la phrase : L'engrais dont la formule est 18-46 contient 46% de ........
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trouve la bonne réponse : La densité de l'engrais ammonitrate est proche de ....
0.8
1
1.2
1.4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Indique l'ordre de grandeur du temps nécessaire au printemps pour que l'engrais urée soit disponible pour les plantes.
moins de 1 semaine
10 j
15 j
20 j
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