land-plaster

Gypsum or land-plaster, sown on white and worked into the soil, will improve both crop and quality.

Home Vegetable Gardening — a Complete and Practical Guide to the Planting and Care of All Vegetables, Fruits and Berries Worth Growing for Home Use 1930

A little land-plaster, or gypsum, worked into the soil at time of planting, will add to both appearance and quality in radishes.

Home Vegetable Gardening — a Complete and Practical Guide to the Planting and Care of All Vegetables, Fruits and Berries Worth Growing for Home Use 1930

Gypsum, under the name of "land-plaster," is applied to soils which are deficient in the sulphur required for plant life; increase in its use in the future seems probable.

The Economic Aspect of Geology 1915

The combination of sulphuric acid with rock-phosphate in the production of acid phosphate produces sulphate of lime, known as gypsum or land-plaster.

Crops and Methods for Soil Improvement Alva Agee 1900

-- The use of land-plaster in stables helps to prevent loss of the nitrogen-content through fermentation.

Crops and Methods for Soil Improvement Alva Agee 1900

"Finally, land-plaster and quick-lime, still more powerful soil stimulants, are often brought into the system to bring about a more complete exhaustion of the soil reserves, and lastly the use of small amounts of high-priced commercial fertilizers serves to put the land in suitable condition for ultimate abandonment."

The Story of the Soil; from the Basis of Absolute Science and Real Life, 1892

So you've raised only eighty crops and the land is already getting poor, and we've raised two hundred and fifty crops -- well, maybe, not quite so many, for we've been giving our land a good deal of rest for the last fifty or sixty years; but my grandfather used to raise twenty-five bushels of wheat to the acre with the help of a hundred pounds of land-plaster, and I've no doubt I could do it again today if I cared to raise wheat, but one acre of tobacco is worth ten of wheat, so why should

The Story of the Soil; from the Basis of Absolute Science and Real Life, 1892

"Well, to some extent they injure the soil because they tend to destroy the limestone and increase the acidity of the soil, and also because they contain more or less manufactured land-plaster and thus serve as soil stimulants; but the chief point to keep in mind concerning the use of the common so-called complete commercial fertilizer is that they are too expensive to permit their use in sufficient quantities to positively enrich the soil.

The Story of the Soil; from the Basis of Absolute Science and Real Life, 1892