施氮量和密度互作对全覆膜旱作甜菜光合特性和块根产量的影响

闫威,李国龙,李智,曹阳,张少英

Effects of Nitrogen Application Rate and Planting Density Interaction on Photosynthetic Characteristics and Root Yield of Sugar Beet under Full-Film Mulching in Arid Regions

Wei Yan,Guolong Li,Zhi Li,Yang Cao,Shaoying Zhang

Table 2 Effects of nitrogen application rates and planting densities on LAI of sugar beet under full-film mulching in arid regions

处理 Treatment 苗期 Seedling stage 叶丛快速生长期 Fast growth stage of leaf 块根糖分增长期 Sugar increasing stage of root 糖分积累期 Period of sugar accumulation D1N1 0.17eD 1.51dE 3.74deC 3.48cdD D2N1 0.24cdBCD 1.53dDE 3.87deC 3.52cCD D3N1 0.29bcBC 1.62cC 3.64eC 3.40dDE D1N2 0.22deCD 1.63cC 3.86deC 3.69abAB D2N2 0.27bcdBC 1.74bB 4.51cB 3.77aA D3N2 0.31bBC 1.97aA 4.95abA 3.28eE D1N3 0.29bcBC 1.45eE 3.95dC 3.64bBC D2N3 0.33bB 1.61cCD 4.78bAB 3.66bAB D3N3 0.45aA 1.78bB 5.05aA 3.15fF F值F-value D 38.77** 132.47** 74.54** 148.28** N 18.65** 330.10** 363.97** 9.97* D×N 1.61 11.90** 22.26** 18.94**