The Combined Effect of Water and Fertilizer on Yield and Quality of Day lily
In order to explore the suitable coupling model of water and fertilizer for day lily in Yanghuang irrigation area of Ningxia.Using day lily as test material and drip irrigation method,3 irrigation gradients and 3 water-soluble fertilizer fertilization gradients were designed,and a to-tal of 9 experimental treatments were set up by combining different irrigation and fertilization gradients.The changes of plant height,flower moss thickness,flower bud length,flower bud thickness,yield and quality of day lily under different treatments were analyzed.The results showed that T2F2 treatment could significantly increase flower bud length,bud weight,yield,soluble sugar and VC content of day lily.The growth,yield and quality indexes of day lily were evaluated by principal component analysis,and T2F2 treatment showed the best performance.The optimal water and fertilizer management mode of day lily in Yanghuang irrigation area of Ningxia was irrigated 10 times during growth period,total irrigation amount was 3525 m3/hm2,water-soluble fertilizer was applied 6 times,fertilization was applied once with water during germination and leaf o-pening period,fertilization was applied twice with water during bolting period and flowering period,and the total fertilizer application amount was 562.5 kg/hm2.
万方数据
维普
