Development of Land Management Technology for Continuous Jhum Cultivation in Hilly Area of Bangladesh

Abstract

The experiments were conducted in three hill district of Bangladesh i.e. Bandarban, Khagrachari and Rangamati under the Agro Ecological Zone (AEZ) 29 (Northern and Eastern Hills Tract) during March 2018 to November 2019 to study the fertilizers packages, NPK briquette and residual effect of fertilizers for continuous jhum cultivation. In this experiments, jhum crops were used as the test crop. The experiment was designed on Randomized Completely Block Design. The treatments consider as normal fertilizers packages (N60P20K30 S12 kg/ha), NPK briquette (N50P20K30 S12 kg/ha) and residual effect of fertilizers instead of farmers practice. By different fertilizers packages the results showed that the highest yield of Jhum rice was 3.81 tha-1 at Khagrachari, Maize (0.436 tha-1) at Rangamati, Sweet gourd (1.679 tha-1) at Bandarban, Chili (0.348 tha-1) at Khagrachari, Sesame (0.361 tha-1) at Bandarban and Marpha (Cucumis sativus) (0.742 tha-1) at Bandarban over farmers’ practice. Instead of normal fertilizer application, fertilizer NPK briquette was used with the highest yield of rice was 4.18 t ha-1 at Khagrachari, Maize (0.674 tha-1) at Bandarban, Sweet gourd (1.06 tha-1) at Bandarban, Chili (0.514 tha-1) at Khagrachari, Sesame (0.753 tha-1) at Khagrachari and Marpha (0.316 tha-1) at Khagrachari. After cultivation of jhum crops another short duration leguminous crops could be cultivated without fertilizers management. The highest yield of cowpea (1.043 tha-1) was obtained at Bandarban site. Yard long bean and Bean yield was also obtained 1.02 and 1.5 tha-1 respectively.