Pilot land of Biosoy new superior variety soybean for farmers in Wonoharjo Village, Boyolali Regency

Abstract

The area of soybean planting in Indonesia has decreased. The reduction in the land area causes a decrease in crop yields. Until now, 65% of the soybeans needed by the Indonesian people come from other countries, so the creation of new land needs to be tried and the number of farmers who are able to grow soybeans must be increased. Farmers in Wonoharjo village, Kemusu, Boyolali Regency are trained to grow soybeans. Land preparation is done by adding liquid fertilizer which contains a lot of nitrogen-fixing bacteria. 800 soybean seeds of Biosoy were planted with a spacing of 40 cm long and 20 cm wide. Biosoy's new high-yielding soybean seeds were selected to ensure a good harvest. Plant care by providing additional NPK fertilizer when soybeans are 40 days old, and cleaning weeds. Demonstration plot, lg 11 meters, a width of 4 meters with 400 growing points, produces 6.7 kilograms of dry soybeans from 200 grams of seed. The average number of pods per plant is 41 pieces. The average weight of 100 soybean seeds is 21.85 grams. The land that has never been planted with soybeans has succeeded as a Biosoy demonstration plot for farmers.

Advantages of early-maturity soybean varieties as a farmer adaptation effort to climate change in Grobogan Regency

“…The Biosoy variety has a higher RCR value at 1.79; the interpretation is that for every IDR 100,000 spent by farmers, they will receive IDR 179,000 in revenue. The RCR value achieved by soybean farmers in Grobogan Regency is still lower than the RCR in Mojokerto and Pasuruan Regencies, East Java, with an RCR value of 1.88-1.98 [15]. However, it is almost in line with research by [42], with RCR values at 1.3-1.8 in several superior soybean varieties.…”

“…The research results align with [11]; the production yield of the Biosoy variety reached 2,426 tons ha -1 . [15] Biosoy production reached 2.3 -2.7 tons ha -1 or higher than the Grobogan and Anjasmoro varieties.…”

“…The Biosoy soybean variety has the advantage of early maturity to minimize drought and has large seeds according to farmer preferences [13], making it suitable for introduction to farmers. Several studies have shown that Biosoy soybean production is higher than existing varieties, such as the Anjasmoro, Grobogan, Dena, and other varieties [14,15]. Anjasmoro is the existing variety that is most widely planted by farmers in Indonesia [16].…”