00528 a2200145 4500 631.83 PET 22145 34791 Petiyagoda, U. Use of potash fertilizer in agriculture in Sri Lanka a report based on studies under a cida - funded research programme Colombo Natural Resources, Energy & Sciences Authority of Sri Lanka 1995 1995 v,40p. 29cm POTASSIUM FERTILIZES FERTILIZERS, SOIL CONDITIONERS, GROWTH REGULATORS L 49547 49547 0 0 0 0 LEN MKDL MKDL LEN 2009-08-12 0 631.83PET 52651 2009-08-12 00:00:00 0.00 2016-10-31 L