Tag Archives: Lowland rice

Rice direct seeded on mulch of Stylosanthes guianensis and Centrosema pascuorum

Rice direct seeded on mulch of Stylosanthes guianensis and Centrosema pascuorum, Stung Chinit, Kampong Thom province, 23/06/2015
Rice direct seeded on mulch of Stylosanthes guianensis and Centrosema pascuorum, Stung Chinit, Kampong Thom province, 23/06/2015

Phkar Rumdoul is sown directly into the mulch of Stylosanthes guianensis and Centrosema pascuorum without soil tillage and puddling. The field is located  on the upper part of the Stung Chinit irrigation scheme (80% sand, less than 1% of organic matter in 0-10 cm depth) with limited water accessibility. This system reduces soil evaporation, decreases soil surface temperature, increases soil organic C and N contents, allowing for better water and nutrients use efficiency and profitability.

Stylosanthes guianensis as a fodder source or cover crop at the end of the dry season on sandy podzolic soil

Stylosanthes guianensis (perennial legume) at the end of the dry season (May) before rolling. Stylo is used as a cover crop for wet season rice on sandy podzolic soil (80% sand) of Stung Chinit irrigation scheme (Kampong Thom province). After 4 years, the use of high and diversified biomass-C inputs allows an increase of the soil fertility (soil organic C & N, soil biological activity and improvement of soil properties)

Stylosanthes guianensis as a fodder source or cover crop at the end of the dry season on sandy podzolic soil, Stung Chinit, Kampong Thom province, Florent Tivet, April 2015
Stylosanthes guianensis as a fodder source or cover crop at the end of the dry season on sandy podzolic soil, Stung Chinit, Kampong Thom province, Florent Tivet, April 2015

Centrosema pascuorum

Centro is one of the most suitable cover crops for rain-fed lowland rice. It is highly tolerant to acidic sandy soils, easy to establish broadcasting once the water recede to 1-2 cm. Centro could be one of the favorite cover crop under organic management due to its susceptibility to mechanical rolling. High seed production is observed.

Centrosema paspurem cover crop, BK, Rada Kong
Centrosema paspurem cover crop, BK, Rada Kong