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比哈尔(Brhar)邦的钠盐土原来的PH约为9.0,电导率约为4.0毫姆欧/厘米,钠饱和度约为17%左右,施用亚硫酸法滤泥200公担/公顷,经过土壤中的反应后,使土壤的PH值降低了0.5单位,电导率达到正常水平,钠饱和度降至7-9%,并增加了有效磷4-5单位,结果增加了甘蔗产量。一般说来,施亚硫酸法滤泥200公担/公顷比不施可增产蔗量达263公担/公顷,其经济收益可达3000卢比。因此,可以推荐亚硫酸法糖厂的滤泥不仅能有效地用来改良比哈尔的钠盐土,而且有助于显著地提高甘蔗产量。
The sodium salt of the Brhar state has an initial pH of about 9.0, an electrical conductivity of about 4.0 millimoles per centimeter, a sodium saturation of about 17%, and a sulphite mud filter of 200 kg / ha, After the reaction in the soil, the pH of the soil was reduced by 0.5 unit, the conductivity reached the normal level, the sodium saturation was reduced to 7-9%, and the effective phosphorus was increased by 4-5 units, resulting in an increase of sugarcane production. In general, the Sulphuric acid method mud 200 kg / hectare can not increase the yield of sugarcane up to 263 km / ha, the economic benefits of up to 3000 rupees. Therefore, it is recommended that the filter cake of the sulfite sugar mill be effectively used not only to improve Bihar’s sodium earth, but also to significantly increase sugarcane production.