【摘要】 为了寻求改良酸性土壤的有效方法,在醴陵和攸县,以石灰、酸易客、亚科丰3种土壤调理剂为材料,开展了酸性土壤改良效果研究。结果表明,3种土壤调理剂对土壤理化性状均有一定改良作用,可增加土壤中细菌的数量,对水稻的农艺性状及经济性状也表现出积极影响;其中,以亚科丰土壤调理剂的效果较好。醴陵和攸县两个试验点,土壤p H值分别比对照提高了0.65和0.53,其他理化性状也有明显改善;土壤的细菌数量分别比对照提高0.78×104和105.17×104cfu/g;产量、产值、产投比分别为549.8和544.2 kg/667m2、1 517.4和1 502.0元/667m2、0.98和0.43。更多还原

【Abstract】 In order to explore the effective ways of improving acid soil, the field test of different soil conditioners such as lime, Suan yike and Ya kefeng for materials was conducted in Liling and Youxian areas of Hunan. The results indicated that three kinds of soil conditioners all had a certain effects on improving soil physical and chemical properties. It can increase the number of bacteria in the soil, and had a positive impact on agronomic and economic characteristics of rice. Of the three soil conditioner, Ya kefeng appeared the best effect in the experiment. Compared with the non-experimented fields, soil p H values was respectively increased by 0.65 and 0.53, and the other physical and chemical properties also was improved greatly in two test sites of Liling and Youxian. The number of bacteria in the soil was respectively increased by 0.78 ×104and 105.17 ×104cfu/g compared with control. The rice yield, output value and input-output ratio were respectively reached 549.8 and 544.2 kg/667m2, 1 517.4 and 1 502.0 yuan/667m2, 0.98 and 0.43.更多还原