Character can be formed and developed which is a person's characteristic from human behavior. Character can also be influenced by various things such as the human family's own experiences, the surrounding environment, religion, and a person's personality. The aim of Community Service (PKM) in the religious sector by the KKM group 40 of Cikerai Village is to increase children's participation in the formation of religious character through positive activities, namely religious activities. This needs to be done considering technological developments and the digitalization era that is currently trending in society. This PKM method uses a PKM approach based on community participation actions. The PKM results show that religious activities in the Cikerai Subdistrict area are quite strong in the community considering that there are still religious figures and community leaders who still adhere closely to religious and cultural principles. So there was collaborative participation from both children and religious leaders around the Sambidingko Village mosque as well as KKM students who took the initiative to hold this religious activity.

School educational institutions are institutions that provide teaching and learning processes that must be supported by good facilities and infrastructure. Not only that, you also need a sense of security and comfort in the classroom so that it is hoped that there will be a feeling of enthusiasm for learning. The aim of Community Service (PKM) in the social, cultural and environmental fields by the Student Work Lecture (KKM) group 40 of Cikerai Subdistrict is to increase students' enthusiasm for learning through repairing and painting classroom walls both inside and outside the classroom. The method used is the ABCD (Asset Based Communities Development) approach which emphasizes an inventory of existing assets in the community. The PKM results show that there are changes in the atmosphere produced before and after painting, this is expected to make students enthusiastic and feel at home studying at the school. Long-term efforts need to be made to maintain and preserve the school environment so that the program becomes even more perfect.

Soil is a nutrient for plants and they grow well and optimally. The nutrients needed by plants include macro elements and micro elements. So that plants can grow well. For this reason, we need a tool to check soil fertility levels from makeshift materials or simple items. The aim of Community Service (PKM) in the field of appropriate technology by KKM group 40 in Cikerai Village is to implement measuring soil fertility levels from simple items. The PKM method used is approach, direct introduction, and knowledge of soil fertility measuring tools. The results of this PKM were responded well by farmers in the Cikerai Village area even though at first they seemed confused, so this tool can be used in the future.

The purpose of this study is to determine the compatibility of AMF isolates from several host plants to the yield components of sweet corn on peatlands. The field experiments were carried out with a randomized complete block design (RCBD) with 5 treatments and 3 replications. The treatments referred to are m0 (without AMF inoculation), m1 (AMF inoculum from the host Pueraria javanica), m2 (AMF inoculum from the soybean plant host), m3 (AMF inoculum from the corn plant host), and m4 (AMF inoculum from the sorghum plant host). Observations weremade on mycorrhizal infections, absorption of N, P, K nutrients, and plant yield components, including weight per ear with weight, weight per ear without husk, ear length, ear diameter, and ear weight per plot. The data acquired from the observation were statistically analyzed using analysis of variance (F test), while further tests were done with Duncan’s multiple distance test (DMRT). The results showed that AMF inoculant derived from maize rhizosphere is more compatible with corn plants than AMF inoculant from rhizosphere sorghum, P. javanica, and soybeans without inoculation. AMF inoculant from maize rhizosphere can increase root infection, absorption of N, P, K nutrients, and the best yield components of sweet corn on peatlands