城市垃圾等合成有机土壤的理化性质及其对茄子经济性状和产量的影响

Properties of Artificial Organic Soil and Influence of the Soil on Eggplant Growth and Yield

系统研究了几种合成有机土壤的理化性质及其对茄子生长发育和产量的影响。结果表明:人工合成有机土壤A组合,生活垃圾、羊粪、玉米秸、菜籽饼、粉煤灰及肥沃土壤容积比为0.20∶0.20∶0.10∶0.03∶0.07∶0.40,加入茄子专用肥发酵处理后,配制成人工合成有机土壤有利于茄子的生长发育。与对照(土壤栽培)比较,容重降低0.31g cm-3,总孔度、毛管孔度、空气孔度分别增加11.71%、4.80%和6.91%;自然含水量、蓄水量分别增加104.67g kg-1和94.93m3hm-2;有机质、速效N、P、K、CEC分别增加14.00 g kg-1、24.73mg kg-1、11.83 mg kg-1、42.91 mg kg-1和5.68 cmol kg-1;重金属离子Hg、Cd、Cr、Pb分别降低0.02 mg kg-1、0.03 mg kg-1、0.32 mg kg-1、0.54 mg kg-1;茄子株高、茎粗、单果重、单株果重、产量、产值、利润分别增加19.57 cm、0.34 cm、74.58g、0.55kg、19.01 t hm-2、1.63万元hm-2和1.05万元hm-2。不同处理间的差异显著性经LSR检验达到显著和极显著水平。

We investigated the properties of some kinds of artificial organic soils and its influence on eggplant growth and yield. The artificial organic soil was made of living waste, sheep dung, corn straw, vegetable seed cake, and fly ash to soil volumes of 0.20：0.20： 0.10：0.03：0.07：0.40. An eggplant fertilizer was also added. Compared with control, soil bulk density was reduced by 0.31 g cm^-3, while soil porosity increased by 11.71%, 4.80% and 6.91% respectively. Besides, water content and storage increased by 104.67 g kg^-1 and 94.93 m^3 hm^-2 respectively. Organic matter, N, P, K andCEC increased by 14.00 g kg^-1, 24.73 mg kg^-1, 11. 83 mg kg^-1, 42. 91 mg kg^-1 and 5.68 cmol kg^-1 respectively.