Phosphoric acid, phosphates and phosphatic fertilizers.

Includes bibliographies.

Source assessment : chemical and fertilizer mineral industry : state of the art /

Mode of access: Internet.

Cadmium additions to agricultural lands via commercial phosphate fertilizers : a preliminary assessment.

Issued Sept. 1978.

Gypsum and other sulfur materials for soil conditioning /

Mode of access: Internet.

Sulfur and its importance in food production, conclusions and recommendations of the Special Subcommittee on Fertilizer and Farm Machinery of the Committee on Agriculture, House of Representatives, based on hearings before the subcommittee February 20-23, 1951.

Mode of access: Internet.

Tests of fertilizers on wheat /

"New series" vol. II, no. 6.

Tests of fertilizers on corn /

"New series" vol. II, no. 8.

Tests of fertilizers on wheat /

"New series" vol. III, no. 7.

Tests of fertilizers on wheat /

"New series" vol. III, no. 12.

Manual on fertilizer manufacture, prepared for the instruction of candidates chosen for training in supervisory positions in fertilizer plants, and for the not too well technically trained who want to know more about fertilizer manufacturing procedures.

Mode of access: Internet.

Die rationelle düngung der landwirthschaftlichen kulturpflanzen. Ein cyclus von drei vorträger.

Mode of access: Internet.

Wie beeinflusst die düngung die beschaffenheit des bodens und seine eignung für bestimmte kulturgewächse?

Thesis, Bonn university.

Philosophical, medical, and experimental essays ... /

Contiene: I. On the state of the population in Manchester, and other adjacent places -- II. On the proportional mortality of the small pox and measles, in the several periods of life, and different seasons of the year; together with its comparative fatality to males and females -- III. On the different quantities of rain which fall, at different heights, over the same spot of ground -- IV. On the solution of stones of the urinary and of the gall bladder, by water impregnated with fixed air -- V. On the nature and composition of urinary calculi -- VI. On the internal regulation of hospitals -- VII. On the influence of fixed air on the colours and vegetation of plants -- VIII. On the action of different manures -- IX. On the properties of different absorbents -- X. Miscellaneous observations, cases, and inquiries.

Profitable tomato fertilizers /

Caption title.

Les engrais.

Mode of access: Internet.