Nagari Simabur is one of the nagari which is included in the Pariangan District, Tanah Datar Regency with the main sector only in the agricultural sector with the main crop being lowland rice. The problem that is often faced by Simabur farmers is the problem of pests and diseases which are the cause of the low growth and yield of the lowland rice plant. One of the main components of the IPM program that can be used as a biological control agent is the use of Trichoderma indigenous. In addition to the use of biological agents, the system or method of planting also affects the production results of the cultivated plants. The purpose of this community service is to increase public knowledge about the use of Trichoderma which can increase the growth and production of rice plants with the jajar legowo system. The method used in this activity is structured training and direct demonstration in the field. The results obtained from this activity were the production of grain weight/plant clump treated with Trichoderma was higher than the control with a difference of 42.45 grams. The conclusion of this activity is that the growth and yield of plants that were applied with Trichoderma were higher than those that were not treated with Trichoderma (control). The use of rhizobacteria is highly recommended because in addition to being easy to obtain, it also provides a positive value for plant growth and is good for environmental technology around cultivated plants.
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