泥炭腐殖酸钠在混合沙土上的应用效果

在混合风沙土中添加泥炭、无机化肥后,分别加入不同比例的液体泥炭腐殖酸钠,通过盆栽试验,考察风沙土上白菜的生长高度和生物量(鲜重和干重).结果表明,与含10%泥炭(质量比)、施入无机化肥尿素和生物质保水剂作为底肥的对照比较,液体腐殖酸类物质的施入浓度不同,白菜的生长状况有区别,其中在0.03%的施入条件下白菜的生长高度和生物量最好,施入0.01%的次之;最差的是0.05%,不如未加液体肥的对照.

Application effect of humic acid sodium made from peat in the mixed sandy soil

Chinese cabbage was planted in the pot after 10% of peat,1 g of fertilizer urea and 5 g of water-retainer were added into 6 kg of mixed sandy soils in proportion to mass.Three dosage of liquid humic acid sodium used as liquid fertilizer were added into mixed sandy soils in the growing period of Chinese cabbage.The effects of liquid fertilizer were examined through the height and biomass of Chinese cabbage.The results show that the height and biomass of Chinese cabbage have distinct difference among different dosage of liquid fertilizer in contrast with no liquid fertilizer.The Chinese cabbage with the largest height and the most biomass grow in the pot that 0.03% of humic acid sodium are put in.The second is in the pot with 0.01% of humic acid sodium.The worst Chinese cabbage is in the pot with 0.05% of humic acid sodium which even worse than that with no humic acid sodium.