Effects of Different Organic Fertilizers on Improving Soil from Newly Reclaimed Land to Crop Soil

The rapid development of cities in the recent 10 years caused a reduction cultivated land area, which only accounts for 14% total area China. Land and reclamation have been regarded as an effective way to compensate farmland occupation. However, most newly reclaimed has poor soil fertility suitability; some cases, production capacity is 10–30% occupied farmland. In order ameliorate quality land, this study evaluated effects commercial organic fertilizer (0.75, 1.50, 2.25 kg/m2), mushroom residue (1.50, 2.25, 3.00 biogas slurry (150, 225, 300 vegetable cake (0.30 0.60 chemical compound (37.50 g/m2) on pH, moisture content matter (OMC), available phosphate, nitrogen, alkaline hydrolysis microbial biomass carbon number bacteria phosphate-solubilizing bacteria, well growth maize seedlings. results from indicate that (OMC indicator) was ameliorated by fertilizers, particular 9.35–16.35% increase content, 11.56–18.72% 1.73–2.15 fold OMC, 338.44–491.41% P, 36.80–48.14% N, 95.32–128.34% 92.57–178.38% bacterial numbers, 7.57–20.87 compared with control. pot experiment further indicated amended fertilizers 20.35–30.55% height 12.50–16.67% dry weight addition, representative strains ability dissolve phosphorus fix nitrogen were successfully isolated using culture method, then identified based colony morphological observation 16S rDNA sequence analysis, help us not understand why great effect improvement, but also provides beneficial resources study.