
Kuis Dasar Ilmu Tanah
Quiz
•
Science
•
University
•
Practice Problem
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Hard
nanda Ahmad
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17 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Yang tidak tepat tentang Kapasitas Adsorbsi adalah :
Kapasitas adsorbsi adalah kemampuan tanah untuk mengikat/menarik suatu kation oleh partikel-partikel koloid tanah.
Kapasitas adsorbsi dihitung dengan satuan milli equivalent.
Semakin tinggi nilai kapasitas adsorbsi, maka tanah dikatakan kesuburannya semakin baik.
Kapasitas adsorbsi secara langsung mencerminkan kemampuan tanah melakukan aktivitas pertukaran hara dalam bentuk anion.
Nilai kapasitas adsorbsi yang tinggi, biasanya susunan didominasi oleh unsur kalium, kalsium dan magnesium dan nilai pH tanah normal.
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Nilai pH menunjukkan banyaknya konsentrasi ion ..... di dalam tanah
H+
Al3+
K+
Na+
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Tanah yang memiliki jumlah ion OH- lebih tinggi disebut tanah...
pH rendah
Masam
Alkalis
Netral
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Kandungan bahan organik ditetapkan berdasarkan ...
Jumlah bahan organik
C organik
pH
KTK
5.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Kandungan bahan organik erat kaitannya dengan kapasitas tukar kation (KTK), korelasi yang tepat adalah ...
Makin tinggi BO dapat menurunkan KTK
Makin tinggi BO dapat meningkatkan KTK
Makin rendah BO dapat meningkatkan KTK
Semua Salah
6.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Sumber unsur hara Nitrogen adalah
bahan organik, batuan fosfat, N2 dari atmosfer
bahan organik, jasad renik, batuan fosfat
bahan organik, N2 dari atmosfer, batuan K
bahan organik tanah, N2 dari atmosfer, pupuk
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Proses perubahan Ammonium (NH4+) menjadi Nitrit (NO2-) disebut dengan ...
Nitratasi
Nitrifikasi
Asimilasi
Denitfikasi
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