The lime enabled the plants to obtain benefit from the plant-food.
All plant-food is worth to the farmer only what he can get out of it.
The plant-food is locked up safely for another year when nature ceases her work of production for the year.
plant-food is needed, and should be mixed with the soil when the seeding is made.
The source of plant-food could only be the atmosphere or the soil.
If yields are limited by absence of plant-food, fertilizers must be used.
Early maturity is hastened by exhaustion of soil moisture and plant-food.
The sod is helped, and as the straw rots, its plant-food goes into the soil.
Even though it has an abundance of plant-food, if its texture is not good, it will not raise a good crop.
Gardeners hold that a grape-border may be too rich in plant-food, especially too rich in nitrogen.