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1. Why is it better to harrow when the field has only a few centimeters of water?
It is better to harrow when water in the field is only a few centimeters deep so that weeds and stubbles that are plowed under will be thoroughly mixed with the mud, and low and high spots can be seen and leveled properly.
2. why do you flodd the soil after each harrowing or plowing?
The soil should be flooded after plowing to soften the soil clods further and allow weed seeds to germinate, while plowed fresh organic materials decompose. The soil should be flooded after each harrowing to prevent drying and hardening. It is necessary to wait 7 days before the next harrowing to allow weed seeds to germinate before they are finally turned under the soil and to give more time for incorporated organic materials to decompose.
http://community.eldis.org/?233@@.59bb7ac2/0!enclosure=.59c0a0c8&ad=1
It is better to harrow when water in the field is only a few centimeters deep so that weeds and stubbles that are plowed under will be thoroughly mixed with the mud, and low and high spots can be seen and leveled properly.
2. why do you flodd the soil after each harrowing or plowing?
The soil should be flooded after plowing to soften the soil clods further and allow weed seeds to germinate, while plowed fresh organic materials decompose. The soil should be flooded after each harrowing to prevent drying and hardening. It is necessary to wait 7 days before the next harrowing to allow weed seeds to germinate before they are finally turned under the soil and to give more time for incorporated organic materials to decompose.
http://community.eldis.org/?233@@.59bb7ac2/0!enclosure=.59c0a0c8&ad=1