Organic Fertilizer Composition and Decomposition

Organic Fertilizer Composition and Decomposition

Assessment

Interactive Video

Biology, Science

5th - 8th Grade

Hard

Created by

Emma Peterson

FREE Resource

The video tutorial explains a composting process over a period of 68 days. Initially, a mixture of soil, composted cow dung, and rice husks is used, with Trichoderma fungus added to accelerate decomposition. After 40 days, ripe bananas and worms are introduced to further decompose the material and produce organic fertilizer. The process highlights the role of natural elements in creating nutrient-rich compost for plants.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the composition of the mixture after 15 days?

50% Soil, 30% Composted cow dung, 20% Rice husks

70% Soil, 20% Composted cow dung, 10% Rice husks

70% Soil, 30% Composted cow dung, 10% Rice husks

60% Soil, 30% Composted cow dung, 10% Rice husks

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which component helps to decompose organic waste faster?

Kitchen garbage

Trichoderma fungus

Rice husks

Composted cow dung

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is added to the mixture after 40 days?

Kitchen garbage

Rice husks

Ripe bananas

Trichoderma fungus

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What do worms decompose to produce organic fertilizer?

Composted cow dung

Rice husks

Ripe bananas

Kitchen garbage

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

After how many days is the mixture ready for use as organic fertilizer?

15 days

40 days

68 days

30 days