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The main problem in the nickel post-mining land in Pomalaa is the toxicity of nickel and chromium. The results of the analysis of soil samples showed that nickel levels reached 11103.74 mg/kg, and chromium reached 4030.17 mg/kg. The toxicity of nickel and chromium can cause the degradation of soil fertility. Bacteria are biological agents that are environmentally friendly, which can be used to reduce heavy metal toxicity and increase soil fertility on post-mining land. This study aims to examine biochemically six indigenous bacteria resistant to 10 ppm NiCl2 and four indigenous bacteria resistant to 10 ppm CrCl2 and identification. Based on the results of biochemical tests known indigenous bacteria from the genus Bacillus sp. is gram-positive bacteria that do not have the catalase enzyme, do not have the ability to use carbohydrates and produce endospores in their life cycle while indigenous bacteria from the genus Clostridium sp. is a gram-positive bacteria which in part has the enzyme catalase, all of which have the ability to use carbohydrates and only some of them produce endospores.

People of Kolaka accustomed to using coconuts as well be used as a food supplement or a mixture of additives in processed foods, cakes and other confectionary. Therefore utilizing coconut pulp as feed fish and poultry should be made to minimize the potential for household waste. Feed from coconut pulp is a transfer of science and technology to the people who are expected to help poor people to be productive. Fermentation is one method to process coconut pulp into feed ingredients. The fermentation process is done by using spores of Aspergillus niger. The fermentation process is done in stages, by aerobic fermentation followed by anaerobic fermentation (enzymatic process). In short the process of making feed "PA-BIO" from coconut pulp is: Dregs of coconuts added water, stirred and steamed. Cooled and then stirred together with a mixture of minerals, Aspergillus niger spores are added and stirred again until evenly distributed. The mixture was then fermented aerobically and unaerobically. Dregs fermented and then dried and packaged for later in packing. Based on the results of research that the utilization of coconut dregs as cattle feed and fish is potential. Miskiyah et al. (2006), increase protein content after fermentation of coconut pulp 11.35% to 26.09%, or by 130% and decreased fat content of 11.39%. The results also showed that the feed produced quite safe for livestock, namely the aflatoxin content <20 ppb. Feed from coconut pulp is also good for fish farming. Goenarso et al. (2002) on tilapia (Oreochromis niloticus L.), the faster fish growth with increasing the feed protein content of 25%, 30%, 35%, 40% and 45%.

The obstacle of chilli pepper development in saline is that there is no salinity tolerant variety, so it is necessary to assemble tolerant varieties. Information on tolerant genotypes, selection criteria and determination of new selection methods at the germination level are needed to make it easier for breeders to select prospective tolerant varieties early. This study aims to determine tolerant genotypes, appropriate selection criteria and NaCl concentrations used for selection at the germination level. The study was arranged based on a completely randomized design with two factors: NaCl concentration and some chilli pepper genotypes. NaCl solution concentrations consist of five concentrations of N0: 0 g L-1 (EC 291 µS/cm, SAL 0,10), N1: 2 g L-1 (EC 3,71 ms/cm, SAL 2,0), N2: 4 g L-1(EC 6,60 mS/cm, SAL 3,60), N3: 6 g L-1 (EC 9,56 mS/cm, SAL 5,40) and N4: 8 g L-1 (EC 12,45 mS/cm SAL 5,40). The second factor is the genotype of chilli pepper consisting of 22 genotypes. The results showed that the most tolerant genotypes were G4, G7 and G15. Characters that can be used as selection criteria at the germination level are the percentage of germination, radical and hypocotyl length. The concentration of 8 g NaCl L-1 is effectively used to select tolerant genotypes

The Effect of NPK-Zeo Fertilizer on Growth and Production of Cucumber (Cucumis sativus L.)  in Iwoimopuro Village, Kolaka District. This research aimed to determine the effect of liquid fertilizer NPK-ZEO growth and result of cucumbers. This research has taken place in the village Iwoimopuro, District Wolo, Kolaka District. This research is compiled using a Randomized Block Design (RBD). Obser rations were made on plant height, leaf number, age of the plant begins to flower, age of the plant begins to bear fruit, fruit number and fruit weight. The data were processed using the Finger Print Car List (Anova) followed by Least Significant Difference Test (LSD). The results showed that administration of NPK-ZEO significant effect on plant height, leaf number, age of the plant begins to flower, age of the plant begins to bear fruit, fruit number and fruit weight