Soil management development of suboptimal soil to improve the growth and production of potato (Solanum tuberosum L.)

Abstract

Increasing potato productivity on suboptimal soil is needed since people in various food types widely consume potato. The research was conducted at the BB-Biogen Segunung-Pacet, Cipanas District, Cianjur Regency, West-Java Province that is characterized by soil with acidic reactions, medium organic matter content and low total organic-N and exchangeable-Mg, very high available-P, high exchangeable-Ca, and K. The increasing of productivity, is designed through providing various levels of lime, manure fertilizer, and Bioboost along with basic fertilizers (ZA, SP36, and KCl). Overall, there were ten treatments, namely, 1) P1 (lime level 1, manure fertilizer level 1, basic fertilizer); 2) P2 (lime level 1, Bioboost level 1, basic fertilizer); 3) P3 (lime level 2, manure fertilizer level 1, basic fertilizer); 4) P4 (lime level 2, Bioboost level 1, basic fertilizer), 5) P5 (lime level 1, manure fertilizer level 2, basic fertilizer); 6) P 6 (lime level 1, Bioboost level2, basic fertilizer); 7) P7 (lime level 2, manure fertilizer level 2, basic fertilizer); P8 (lime level 2, Bioboost level 2, basic fertilizers); and 9) P9 (basic fertilizers), 10) P10 (control, without lime, Bioboost, manure fertilizer and organic fertilizer). P5 treatment resulted in the best growth and production of potato. The combination of the largest manure fertilizers and low-level lime provided the highest increase in productivity.