The boron content of British Columbia soils and the boron fertilizer value of tourmaline rock
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In virgin soil, half of a sample contains total boron 10-20 p,p.m. in dry basis and seventy-five percent of a sample contains it in available form 0.1-0.3 p.p.m. But in arable soil, sixty-three percent of a sample contains total boron 10-30 p.p.m. and available form 0.1-0.3 p.p.m. In the upper layer (0-10cm. deep) of arable soil. sixty-three percen...
"Chemistry-General ; (TID-4500, Ed. 13 Suppl.)"--Cover. / "Phillips Petroleum Company, Atomic Energy Division (Under Contract No. AT(10-1)-205)"--Cover. / "Date: October 16, 1957." / Includes bibliographical references (p. 13) / / Mode of access: Internet.
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"AFCRL-63-575." / Includes bibliographical references (pages 91-92) / Scientific report no. 2 on contract no. AF1(604)-7492 / Project 4608; Task 460801 / Final report on contract DSR 8246
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