The Research Team of IPB University Develops Tidal Soybeans with High Productivity

Tidal land is a potential land for the development of food crops in the future. The area of tidal land in Indonesia is 20.1 million hectares. Of the land area, at least 9.53 million hectares are suitable for agriculture and two million hectares are suitable for soybean cultivation. These tidal areas are spread over Sumatra, Kalimantan, Sulawesi and Papua.

The constraint of tidal land management for soybean cultivation is the high content of pyrite, Fe and Al and low available P. Pyrite if oxidized under drought conditions will cause a lower pH and Al becomes toxic to soybean plants. Saturated Water Cultivation Technology (BJA) is considered capable of suppressing oxidized pyrite, thereby increasing soil fertility by increasing pH and availability of nutrients such as N, P, K, Ca, and Mg.

BJA technology is a cultivation technology by providing continuous irrigation from planting to harvesting about 20 centimeters below the soil surface. Thus, it can make the layer below the root surface saturated with water

BJA technology is suitable to be applied in tidal land. This is because water is relatively available and the intensity of solar radiation is high. These conditions can increase the process of photosynthesis to produce high productivity. Soybean productivity on a research scale can reach 4 tons per hectare. Meanwhile, at the time of development in an area of 500 hectares, it can reach 2.5 tons per hectare. This productivity is higher than the national average of only 1.5 tons per hectare.

The condition of national soybean production in 2021 is around 0.25 million tons, with a national demand of 2.5 million tons, so there is a deficit of around 2.25 million tons. If it will be met from tidal land with soybean productivity of 2.5 tons per hectare, it is necessary to manage 900 thousand hectares of tidal land. Not only that, it is necessary to design the availability of seeds in seed breeders in each province where tidal land is available. If the need for seeds is 50 kilograms per hectare, then 45 thousand tons of seeds are needed.

Efforts to increase the efficiency of P fertilization on BJA have been carried out through research led by Prof. Munif Ghulamahdi. Prof Munif was assisted by other lecturers consisting of Dr Irdika Mansur, Dr Purwono, Dr Maya Melati, Dr Ridwan Muis, and Marlin Sefrilla, SP MSi so that the FMA-PSR-IPB1 product was obtained. This research was started from the isolation of various types of AMF from tidal land that had been under stress of low pH and high Fe and Al. Furthermore, characterization tests, propagation, compatibility tests, and field tests were carried out at various levels of P fertilization to determine the level of efficiency in soybean productivity. Based on the studies that have been carried out, the FMA-PSR-IPB1 product is able to reduce the need for P fertilizer by up to 50 percent.

On August 10, 2022 to coincide with the Commemoration of National Technology Awakening Day (Hakteknas), IPB University through the Institute for Research and Community Service (LPPM) launched this soybean variety innovation, located at the Rectorate Building, Dramaga Campus, Bogor. (*) (IAAS/STR)

Published Date : 10-Aug-2022

Resource Person : Prof Munif Ghulamahdi

Keyword : soybean cultivation, soybean products, IPB innovation, IPB research