Mungbean value chain in Cagayan Valley region highlights in-house webinar

The mungbean research for development (R4D) in Cagayan Valley region spanned across the whole value chain from production to marketing. These initiatives and R4D-based interventions were discussed by Vanessa Joy F. Calderon of the DA-Cagayan Valley Research Center (CVRC) during the DA-BAR in-house webinar held on 29 June 2022.

Calderon talked about the nine technology interventions that improved the mungbean industry in Cagayan Valley. 

DA-CVRC introduced the rice-rice-mungbean cropping system which replaced the previous monocropping of rice. 

Mungbean can tolerate dryland conditions, fix atmospheric nitrogen, and utilize and recycle phosphorus and other minerals from the soil. It can be harvested 45-55 days after planting (DAP). 

“Crop rotation can help moderate or mitigate possible weed, diseases, and pest problems. Planting rice or corn after mungbean or any legume can reduce urea application to cereal crop by one bag per hectare,” said Calderon. 

The center also introduced the use of good quality seeds, UPL Mg 7 and BPI Mg 9 varieties. These can be planted in both dry and wet seasons with an average yield of at least one ton per hectare. Both varieties can be harvested after at least 62 DAP and are resistant to powdery mildew and Cercospora leaf spot. 

The next intervention was seed dressing of rhizobium inoculant. 

“Applying inoculant to the seed ensures that the correct type of bacteria specific to that legume is available to the plant once it germinates. Seed inoculation with bradyrhizobium-bacteria economically increased the yield of mungbean by 157.8 kg/ha,” she said. 

DA-CVRC also introduced the use of mechanical seeder, which makes crop establishment quicker than traditional methods as it combines the soil preparation and distribution of seeds and fertilizers; and mechanized sorter, which filters defective seeds from good ones while reducing approximately 50-60% cost compared to manual sorting. 

Next intervention was the Balanced Fertilization Strategy which “demonstrates the innovative way (based on soil analysis) of managing fertilizer application and plant nutrient uptake management addressing economic and profitable approaches for mungbean under rice-based areas,” said Calderon. 

The use of Carrageenan PGP, a seaweeds-based foliar fertilizer, was also introduced. Applying it thrice every 14- to 15-day interval increased the yield of mungbean by 50 to 125%. 

DA-CVRC also introduced the improved mungbean seed storage using polyethylene plastic placed inside a plastic or steel drum that can be stored up to 12 months with 9.2 to 10% moisture content. 

Calderon shared that, through the R4D initiatives of the center, the farming community (FLOW of Pariir Agricultural Cooperative) had established a seed production business enterprise.hey serve as a source of certified and good seeds of mungbean planting materials. 

“The best way to market our legumes products for better income is to transform raw materials into sexy processed products,” said Calderon. 

Hence, she discussed the MangBean brand and its products, as well as R4D initiatives that DA-CVRC undertook to develop it. Financial viability and profitability analysis of the developed products were discussed last. (### Rena S. Hermoso)