In southern Xinjiang oasis cotton fields

the river water was taken as control (CK)

using salt water mixed with water

settings for 3 g/L and 5 g/L saline water

researched on the effect of saline water drip irrigation on water and salt transport features and cotton yield. The results showed that: Soil moisture content and soil salt content of 3 g/L and 5 g/L salinity in the whole growth period increased with the increase of salinity

before full-bloom stage (July 21) there was no significant difference of soil moisture content

but the highest soil salinity was CK

the soil salt content after full-bloom stage was 5 g/L>3 g/L>CK and its difference was significant (p<0.05). Vertical direction

soil moisture content increased with increasing soil depth

and with the increase of brackish water salinity

soil moisture content showed a trend of increase

which had a significant differences between treatment after full-bloom stage. With the increase of soil depth

the soil salt content showed the downtrend

the more times of drip irrigation

the more difference of different treatments

at full-boll stage (August 4) it reached significant level. Horizontal direction

the farther distance of water dropper head

the smaller soil moisture content

and the soil moisture content increased gradually with the increase of salinity. The soil salt content of 3 g/L and 5 g/L was lower than that of CK before full-bloom stage

after full-bloom stage the soil salt content declined along with the distance of water drops head

and was positive correlation with salinity. Lint yield of 3 g/L decreased by 2.1%

no obvious difference

but that of 5 g/L decreased by 9.6%

and there was significant difference. The main reason of declining lint yield was a significant reduction in the boll number per plant and single boll weight

but no significant effect on lint percentage. Therefore

before full-bloom stage cotton could use saline water for irrigation

and saline water salinity should not be more than 3 g/L.