播期温度对新疆膜下滴灌棉花出苗率及苗期生长的影响
|
|
随龙龙,田景山,姚贺盛,张鹏鹏,梁福斌,王进,张旺锋
|
Effects of Different Sowing Dates on Emergence Rates and Seedling Growth of Cotton Under Mulched Drip Irrigation in Xinjiang
|
|
LongLong SUI,JingShan TIAN,HeSheng YAO,PengPeng ZHANG,FuBin LIANG,Jin WANG,WangFeng ZHANG
|
|
表3 不同温度播种下棉花播种至出苗期间的温度（热量）指标的变化
|
Table 3 Changes of temperature (heat) index from sowing to emergence at different sowing dates
|
|
年份
Year | 播前3 d膜下5 cm土壤平均温度
Soil mean temperature averaged over three days before sowing date under 5 cm for mulching film (℃) | 播种至出苗期 Sowing to emergence date | 平均气温
Mean air temperature (℃) | 膜下5 cm土壤平均温度
Soil mean temperature under 5 cm for mulching film (℃) | ≥14℃土壤有效积温
Growing degree days in soil (℃) | ≥14℃膜下每日热效应
Daily heat effect under mulching film | | 2016 | 17.6 | 13.5 | 19.1 | 45.9 | 0.4636 | | 18.4 | 17.7 | 21.9 | 63.2 | 0.7182 | | 22.2 | 16.6 | 21.0 | 59.3 | 0.5391 | | 2017 | 9.5 | 13.9 | 17.3 | 80.4 | 0.4123 | | 12.0 | 15.5 | 18.6 | 79.6 | 0.5103 | | 18.7 | 18.1 | 23.3 | 79.2 | 0.8703 | | 24.7 | 16.5 | 21.4 | 75.2 | 0.7231 |
|
|
|