In recent times, there is an increasing use of Castor Cake in agriculture. Which among the following is the property of Castor Cake which makes it most suitable for application at the time/ or prior sowing ?
[A] It is a good biofertilizer which makes the soil rich in nitrogen
[B] It is used to amend the soil alkalinity
[C] It has some toxins which control the soil borne pathogens
[D] It helps the soil to retain moisture

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