In an experiment to determine the percentage of humus content in a soil, the following results were obtained:
mass of dish = 10 gm
mass of dish and oven-dry soil = 50 gm
mass of dish and soil after heating = 40 gm
Calculate the amount of humus in the soil sample.

Similar Questions

The factors which affect the number and the activities of soil micro-organisms include the following...

The disease which affects only animals other than humans is ...

The interval from the beginning of one heat period to the another is known as ...

A farm tool used for harvesting heads of rice is the ...

Which of the following describes the steps in making hay? ...

The practice of progeny selection involves selecting bread stock on the basis of the ...

Which of the following fruits is a capsule? ...

The major factor affecting distribution of crops in West Africa is ...

The methods of rangeland improvement which ensure continuous herbage growth during the dry season ar...

What is agricultural ecology? ...