Growing mulch in place in paddy field

I have been trying no-till rice/millet for many years, but not successful. The main reason is weed control, once achieved this by growing pureria for close to 1.5 years, but after cutting and growing rice, it didn't come back. Fukuoka san achieved weed control using white clover and also his rice plant grew relatively tall and were adapted to such environment. 

Weeds take over the field during fallow period and with the start of rainy season, they grow first. Mulch is one way to control them and need mulch which decompose slowly. Recently found a fodder grass growing in the farm, which meets these requirements. They grow back in 1 month time after cutting when there is soil moisture and is perennial.

So one field which I was not using for long time, I planted these grasses in rows 8 feet apart and plan is to cut and mulch the space between the rows. Since this mulch decompose slowly should provide good weed control.

Fodder grass, it grows much thicker

Fodder grass planted 8 feet apart in rows