Amorphophallus gigas is one of Sumatra's endemic Amorphophallus species that is protected in Indonesia. Amorphophallus gigas is one type of Amorphophallus with the highest flowers in the world. The conversion of land to other uses is one of the causes of the reduced population of Amorphophallus gigas. One of the natural habitats of Amorphophallus gigas was found in the Sabungan Village and Langga Payung Village, North Sumatra. The purpose of this study was to determine the distribution of the generative phase of Amorphophallus gigas in the Sabungan Village and Langga Payung Village, to determine the types of plants found around the place of growth and to determine the morphology of the generative phase of Amorphophallus. The method used in this research is the roaming method and then records the coordinates of the generative phase of Amorphophallus, records the types of pollinating insects around it and observes the morphology of Amorphophallus gigas. The results showed that there were 11 individuals in the generative phase of Amorphophallus gigas in the Sabungan Village and Langga Payung Village, where 10 individuals grew on rubber land cover and 1 individual grew on oil palm land cover. A total of 2 individuals were found in bud condition, 1 individual was in bloom, 2 individuals were wilted and 6 individuals were found at the seed formation stage. There are 12 types of insects found around the generative phase of the Amorphophallus.

Rice is the staple food for most of Indonesia’s population. Efforts to increase rice production and productivity are really carried out with agricultural intensification and extensification. However, rice production and productivity did not increase significantly. This research was conducted to find out the nutrient content of N, P, K and C-organic in some irrigation area in North Aceh. The study was conducted in four irrigation areas in North Aceh, namely Krueng Sawang irrigation, Krueng Pase Irrigation and Krueng Langkahan Irrigation. The method used in this research survey method. Determination of respondents is using purposive sampling method. Observations made on observed soil chemical properties include N-Total, P-available, K-exchangeable, and C-organic soils. The farm business data is only the yield per harvest. The results showed that the soil C-organic content ranged from 1.61 to 5.18%, with low to very high criteria. N-total levels ranged from 0.17 to 0.55% with low to high criteria. P-available levels ranged from 1.87 to 6.85 ppm with very low to low criteria, Then, K-exchangeable content ranged from 0.29 – 0.96 ppm with low to high criteria. The yield per harvest ranges from 4.45 to 6.00 t/ha.