微喷补灌对麦田土壤物理性状及冬小麦耗水和产量的影响

何昕楠,林祥,谷淑波,王东

Effects of supplemental irrigation with micro-sprinkling hoses on soil physical properties, water consumption and grain yield of winter wheat

Xin-Nan HE,Xiang LIN,Shu-Bo GU,Dong WANG

表2 试验田0~40 cm土层土壤容重、田间持水率、总孔隙度和毛管孔隙度

Table 2 Soil bulk density, field capacity, total porosity, and capillary porosity in 0-40 cm soil layer of experimental field

土层 Soil layer (cm) 容重 Bulk density (g cm-3) 田间持水率 Field capacity (%) 总孔隙度 Total porosity (%) 毛管孔隙度 Capillary porosity (%) 2016-2017 0-5 1.18 41.58 55.66 33.33 5-10 1.21 41.35 54.51 34.11 10-15 1.14 44.09 56.91 35.25 15-20 1.28 37.93 51.79 31.16 20-25 1.54 25.73 41.92 19.51 25-30 1.56 24.32 41.07 17.68 30-35 1.55 25.46 41.48 19.32 35-40 1.44 28.26 45.56 22.01 2017-2018 0-5 1.09 44.71 58.73 45.73 5-10 1.17 43.07 55.80 42.80 10-15 1.08 48.01 59.38 46.38 15-20 1.15 43.28 56.61 43.61 20-25 1.49 27.51 43.86 30.86 25-30 1.56 24.23 40.98 27.98 30-35 1.55 26.09 41.59 28.59 35-40 1.43 28.59 46.08 33.08