Haixia Zheng^{1, 2}, Mei Li², Yu Feng², Qingrong Zheng², Zhengming Luo², Yanjun Hou², Yushan Bu^1,, Hafeez Noor¹

The Chinese cabbage (Brassica campestris ssp. chinesis) experimental base of Shanxi agricultural in Shanxi Province, China. Organic fertilizer was the main plot, 0 and 1.5 t/ha (Chicken mature Organic fertilizer). Five treatments were set up ① Control CK (0g sludge + 0g chicken manure) ② Organic fertilizer "H0" level (sludge + chicken manure 0g) ③ "H1" level of organic fertilizer (sludge + organic fertilizer 60 g/kg) ④ "H2" level of organic fertilizer (sludge + organic fertilizer 120 g/kg) ⑤ Organic fertilizer "H3" level (sludge + organic fertilizer 180 g/kg), 4 replicates. The results showed that plant height, root length, aboveground dry weight and underground dry weight of Chinese cabbage increased firstly and then decreased in latosol, red soil and calcareous brown soil. The growth and biomass of Chinese cabbage in the three soils ranged from large to small, red soil. The contents of Cu and Zn in edible parts of Chinese cabbage in three soils showed an increasing trend. The enrichment coefficients of Cu and Zn in Chinese cabbage are quite different, and the enrichment coefficients of Zn are larger than that of Cu, both of which are less than 1. The content of organic matter in latosol, red soil and calcareous brown soil increased, and the average content of organic matter in each experimental treatment was from large small. The total Cu and Zn contents and available state contents in the three soils showed an increasing trend. The average Cu content of each treatment was red soil > calcareous brown soil > latosol, and the average Zn content was red soil. The condition of chicken manure, the content of essential amino acids was basically equal to that of non-essential amino acids, which increased the accumulation of essential amino acids in grains, inhibited the accumulation of non-essential amino acids in grains, promoted the balance of amino acids in grains, and thus improved the nutritional quality of Chinese cabbage.

municipal sludge, different acidic, protein, crop growth, chicken manure