水肥一体化技术对叶用枸杞产量及水肥利用率的影响

Effects of Integration Technology of Water and Fertilizer on Yield and Water and Fertilizer Utilization of Leaf Utilization Wolfberry

为了探究水肥一体化技术对叶用枸杞产量及养分利用率的影响,本文以叶用枸杞‘宁杞9号’为试验材料,研究了常规沟灌施肥(CK),水肥一体化施肥(T1),水肥一体化减量施肥(灌水量、施肥量均为水肥一体化施肥的80%,T2)3种灌溉施肥方式对叶用枸杞产量、水分利用率、养分利用率及经济效益的影响。结果表明,水肥一体化技术在施肥量和灌水量均低于传统施肥的条件下,T1、T2的产量分别比CK提高了69.3%和4.6%,水分利用率分别提高了150.6%和93.1%,氮磷钾吸收率分别比CK提高了14.52,5.72,16.65个百分点和1.10,0.96,2.81个百分点,每公顷的经济效益分别增加了91 217元和8 730元,产投比分别提高了72.3%和33.0%。综合而言,水肥一体化技术可提高叶用枸杞的产量、水分和养分利用率以及经济效益,其中以水肥一体化施肥(T1,即N 496.05 kg·hm^(-2)、P 483.2 kg·hm^(-2)、K 342.15 kg·hm^(-2))效果最好。

To explore the effect of integration technology of water and fertilizer on yield and nutrient utilization of leaf utilization wolfberry, the experiment was conducted with 'Ningqi 9' as the experimental material, three treatments were designed, including conventional irrigation and fertilizer (CK), the integration of water and fertilizer (T1), and 80% reduction fertilizer (T2), the yield, water utilization efficiency, nutrient utilization and the economic benefits of leaf-used wolfberry were analyzed. The results showed that comparing with CK, the integration treatment of water and fertilizer (T1, T2) had fewer amount of fertilizer and water, but the yield of T1 and T2 was increased by 69.3% and 4.6%, the water utilization efficiency was increased by 150.6% and 93.1%, the N, P, K uptake were increased by 14.52,5.72,16.65 and 1.10,0.96,2.81 percentage points, the economic benefits per hectare were increased by 91 217 yuan and 8 730 yuan, the input-output ratio was increased by 72.3% and 33.0%, respectively. In conclusion, the integrated technology improved the yield, water utilization efficiency, leaf-used Chinese wolfberry nutrient utilization efficiency and economic benefits, in which T1 treatment (N 496.05 kg·hm^-2, P 483.2 kg·hm^-2, K 342.15 kg·hm^-2) had the best effects.