The response of several groundnut cultivars on fertilization in drylands with the dry climate

Abstract

The existing technology for growing groundnuts in drylands with the dry climate in East Sumba District of East Nusa Tenggara Province is very simple/ordinary, and the introduction of superior groundnut cultivar and improved technology are predicted will increase its productivity. The experiment was undertaken to find out the performance of improved technology and superior cultivars on increasing pod yield productivity. The experiment was done at Laipori Village, Pandawai Subdistrict, East Sumba District from February-May 2018. The experiment applied a randomized block design two factorial with three replicates. The treatments consisted of two factors. Factor one was five groundnut genotypes (five superior: Kancil, Hypoma 3, Hypoma 1, Hypoma 2, and Kelinci and one local Sandel cultivar), factor 2 was two types and dosages of fertilization (low: 50 kg Phonska/ha, high: 100 kg Phonska/ha+50 kg SP36+500 kg FYM/ha). The results indicated that initial soil fertility status was high pH (>7.0), low total N, moderate available P, high K, Ca, Mg concentration. The improved technology that has been tested consisted of superior cultivar of Kancil, and the application of 50 kg Phonska/ha. Kancil cultivar was able to increase pod yield by 26% higher than that of Local Sandel cultivar.