黑龙江省耕地黑土酸化的治理措施研究

文章针对黑龙江省耕地黑土发生酸化的现象,分别采取不同的治理措施,发现在白浆化黑土、草甸黑土中施用有机肥料和草木灰、生石灰后大豆株高、荚数均有增加;白浆化黑土中施用有机肥料增产效果最显著,与对照相比增产428.4kg.hm-2,增产百分率为19.87%;其次是施用草木灰,增产14.81%。施用生石灰增产效果不明显,在草甸黑土中施用草木灰时大豆增产效果要好于生石灰,与对照处理相比,施用草木灰处理增产7.77%。施用有机肥料和草木灰、生石灰都能使土壤的pH提高,对治理土壤酸化具有一定意义。

Study on recovery measures of black soil acidification in Heilongjiang Province

Manure and alkaline fertilizer were used to mitigate black soil acidification in arable land in Hei-longjiang Province. The results showed that both soybean plant height and pod numbers increased in albic black soil and meadow black soil with the application of manure and alkaline fertilizer. Remarkable increase in soybean yield was observed in manure and plant ash treatment, which increased 428.4 kg·hm-2, corresponding to 19.78% and 14.81% respectively compared with control. In meadow black soil, the soybean yield in the plant ash treatment was higher than that in the quick lime treatment, and the yield in the former increased 7.77% com-pared with control. Soil pH was enhanced under the application of manure and alkaline fertilizer.