### Chinese: 省内茶界专家称，采完绿茶采红茶、黑茶，茶农一年四季有收入，茶园产值直线上升。
### English: According to opinion of experts in the tea industry in the province, tea farmers pick up black tea after green tea, and have income in all seasons, leading to directly rise in the production value of tea gardens.
### Errors: There is a minor error of incorrect translation has stylistic problems at "pick up instead of pick". There is a minor error of incorrect translation is missing content from the correct translation at "directly instead of resulting".

### Improved English: According to opinion of experts in the tea industry in the province, tea farmers pick black tea after green tea and have income in all four seasons, making the  production value of tea gardens soar.