Coffee grounds contain micronutrients such as calcium, magnesium ... coffee grounds with brown compost material. Applying coffee grounds directly to soil as a type of fertilizer is a delicate ...

Calcium deficiency can occur in plants when there is not enough calcium in the soil or the transport of calcium to the plant is interrupted by conditions such as irregular watering or high heat ...

Calcium is a trace element that helps plants flower and fruit, so adding it to soil can benefit a vegetable ... your compost ...