Raw data of PhD research: The feasibility of high yielding triple rice systems in the polders of the low salinity coastal zone of Bangladesh
<|begin_of_text|><|start_header_id|>system<|end_header_id|> You are a research archivist expert in dataset metadata. Answer the question truthfully.  <|eot_id|><|start_header_id|>user<|end_header_id|> Here is the Description of a dataset. Description:'The agricultural productivity of the polders of the coastal zone of Bangladesh is very low, despite large investments in embankments and sluice gates to protect the lands from tidal flooding and saline water intrusion. Excessive waterlogging as a result of high rainfall and poor drainage, soil salinity, severe cyclonic storms and tidal surges are major constraints to increasing cropping productivity and intensity in the polders. In the rainy season, most of the cultivable lands grow photoperiod sensitive, tall, local aman varieties that are well adapted to waterlogging (prolonged periods of 30-50 cm water depth), but with low yield potential (2-3.5 t/ha) and late maturity (December). During the dry season, low yielding local rabi crops are often grown, but large areas remain fallow for 3-7 months each year. However, the south-central co' . Please return only a json list of at most 3 Keywords corresponding to the Description:.<|eot_id|><|start_header_id|>assistant<|end_header_id|> {"Answer" : ["coastal zone management","Oryza sativa","polders","salinity","sustainable agricultural intensification","waterlogging","water management"]} <|eot_id|>
 Here is the Description of a dataset. Description:'The agricultural productivity of the polders of the coastal zone of Bangladesh is very low, despite large investments in embankments and sluice gates to protect the lands from tidal flooding and saline water intrusion. Excessive waterlogging as a result of high rainfall and poor drainage, soil salinity, severe cyclonic storms and tidal surges are major constraints to increasing cropping productivity and intensity in the polders. In the rainy season, most of the cultivable lands grow photoperiod sensitive, tall, local aman varieties that are well adapted to waterlogging (prolonged periods of 30-50 cm water depth), but with low yield potential (2-3.5 t/ha) and late maturity (December). During the dry season, low yielding local rabi crops are often grown, but large areas remain fallow for 3-7 months each year. However, the south-central co' . Please return only a json list of at most 3 Keywords corresponding to the Description:.
The agricultural productivity of the polders of the coastal zone of Bangladesh is very low, despite large investments in embankments and sluice gates to protect the lands from tidal flooding and saline water intrusion. Excessive waterlogging as a result of high rainfall and poor drainage, soil salinity, severe cyclonic storms and tidal surges are major constraints to increasing cropping productivity and intensity in the polders. In the rainy season, most of the cultivable lands grow photoperiod sensitive, tall, local aman varieties that are well adapted to waterlogging (prolonged periods of 30-50 cm water depth), but with low yield potential (2-3.5 t/ha) and late maturity (December). During the dry season, low yielding local rabi crops are often grown, but large areas remain fallow for 3-7 months each year. However, the south-central co
coastal zone management; Oryza sativa; polders; salinity; sustainable agricultural intensification; waterlogging; water management