paddy is sown in June to September (rainy season). soil is prepared using plough and rake. also, an elaborate system of pipelines and channels has to be devised to carry water to all parts of the field when crops have grown. levelling of soil is also important so that distribution of water in all parts of the field is equal.
They hook up a water buffalow and plow the feild
preparation of soil
To prepare soil for planting
This sentence has a single subject with compound predicate "prepare the soil and ready it for planting."
they use it to neutralise acidic soil in fields
They have to irrigate their fields
It grows best in alluvial clay soil , which can retain water and moisture. Rice is cultivated in specially irrigated or flooded paddy fields.
Soil depletion is when the soil no longer has any nutrients needed for living organisms. This happens in agriculture with planting fields so farmers change what fields they plant on every year.
red soil
Leaving fields unplanted allowed soil to recover from cash crops production, but it was impossible for poor farmers who needed the money from the sale of their crops.
It increases the pH of soil and provides calcium for plants.
to let the soil gain nutrients that it was lost
Actually paddy is a monsoon crop, so it is mostly cultivated in monsoon regions of China, India and Bangladesh.
farmers prepare manures by dumping animal dung, vegetable and crop wastes at open places and let them be decomposed by bacteria and fungi. After a month or so, the manure is ready and is mixed up with soil.