Effects of Magnesium Compound with Fertilizer on Daylily (Hemerocallis citrina Baroni) Growth and Soil Nutrients

Abstract Effects of two kinds of magnesium compound with fertilizer on Daylily ( Hemerocallis citrina Baroni) growth, yield, and soil nutrients in red soil were studied. The results indicated that significant effects of magnesium applied to soils were observed in increasing Daylily ( Hemerocallis citrina Baroni) yield, improving its growth, and strengthening its antivirus property as well as increasing the amount of exchangeable Mg, N, P, and K in red soil. In particular, the effects of magnesium compound fertilizer II (MCF 2 ) with higher Mg content were better than that of the others, which increased Daylily ( Hemerocallis citrina Baroni) yield by 57.4, 32.8, and 14.5% compared to that of control treatment (CK), chemical fertilizer with nitrogen, phosphorus, potassium treatment (CF), and magnesium compound fertilizer I treatment (MCF 1 ) with lower Mg content. It increased soil Alkali N, available P, exchangeable K, and exchangeable Mg by 94.9, 46.5, 31.1, and 35.3%, respectively, compared with that of CK treatment. Therefore, the application of magnesium compound with fertilizer is an optimum method for improving red soil quality.