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	1.	Image from Amazon.com	Organic materials and soil productivity / by W. Flaig ... [et al.]. by Flaig, W Food and Agriculture Organization of the United Nations. Soil Resources, Development and Conservation Service Series: FAO soils bulletin ; 35 \| Soils bulletin ; 35. Material type: Text; Format: print ; Literary form: Not fiction Publication details: Rome : Food and Agriculture Organization of the United Nations, 1977 Availability: Items available for loan: PSAU OLM (2)Call number: C 631.4 F73 1977, ... Place hold Save to lists Add to cart (remove)
	2.	Image from Amazon.com	Symposium on Potential productivity of field crops under different environments. by Symposium on Potential Productivity of Field Crops Under Different Environments (1980 : Los Baños, Philippines) International Rice Research Institute Material type: Text; Format: print ; Literary form: Not fiction Publication details: Los Baños, Laguna, Philippines : International Rice Research Institute, c1983 Availability: Items available for loan: PSAU OLM (1)Call number: FIL 633 Sy68 1983. Place hold Save to lists Add to cart (remove)

Pampanga State Agricultural University