TECHNOLOGY FOCUS - AGRICULTURE - Preferred Components: The bio-fertilizer is a porous granule having a particle size of 2-5 mm, an aperture of 10-30 mu m, a porosity of 30-50 mu m and an aperture ratio of 50-70%. The strain includes 20-40% arbuscular mycorrhiza, 30-50% phosphate-solubilizing bacteria and 20-40% Rhizobium, where the strains were respectively cultured in arbuscular mycorrhiza culture medium, phosphate-solubilizing bacteria culture medium and Rhizobium culture medium for 4 days. The phosphate fertilizer is a mixture of soluble phosphate and slightly-soluble phosphate fertilizer. The soluble phosphate fertilizer includes monoammonium phosphate and/or diammonium phosphate. The slightly-soluble phosphate fertilizer includes phosphate rock (2000-3000 meshes), potassium dihydrogen phosphate, calcium superphosphate and/or triple superphosphate. The nitrogen fertilizer includes ammonium nitrate, ammonium sulfate and/or urea. The synergist includes rare earth element, poly-aspartic acid, urease inhibitor, nitrification inhibitor, amino acid, alginic acid, humic acid, fulvic acid, complex sodium nitrate, diethyl aminoethyl hexanoate and/or prohexadione calcium. The adhesive includes sodium alginate, tragacanth gum, hyaluronic acid and/or carboxymethyl cellulose. The arbuscular mycorrhiza is Glomus intraradices or Glomus mosseae. The phosphate-solubilizing bacteria is Bacillus, Pseudomonas, Erwinia, Fusarium, Sclerotium, Streptomyces, Aspergillus (CGMCC No. 3.3928) or Penicillium (CGMCC No. 3.3875). The Rhizobium is nitrogen-fixing Rhizobium.    TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Components: The microporous extrusion granulator includes a roller-type granulator, a feed port, a screw rod, a double-roller, a porous chamber, a crusher and a screening chamber. The porous chamber includes dense tiny micro-holes having a size of 10-30 mu m. The material is passed via feed port, which rotates at the bottom via screw rods by counter-rotation to obtain cake-shaped strips of 3-6 mm thickness, then passed into porous chamber to make strips porous, then passed into crusher, then cut into 2-5 mm porous particles by round cutter, and sieving the qualified granule. ACTIVITY - Fertilizer.