Kepadatan cacing tanah pada agroforestri kopi di Kecamatan Ngantang Kabupaten Malang

ENGLISH:

Ngantang is one of the Districts in Malang Regency. Coffee plants in Ngantang are planted with an agroforestry system. Earthworms are animals that are used as indicators of plant fertility. The purpose of this study was to determine the density of earthworms and the relationship of physical-chemical factors with the density of earthworms. The study was conducted in August 2019. Identification and measurement of groundwater content in the Optical Laboratory and Ecology Laboratory, Department of Biology, Faculty of Science and Technology, UIN Malang. Soil chemical analysis Soil Laboratory of UPT for Food Crop Agribusiness Development and Lawang Horticulture. Research uses the Systematic method each station. The number of plots at each station is 36 plots (the distance between plots is 5 meters). Sampling by hand sorted method. Data analysis using the PAST program 3.15. Two genes of earthworms were obtained in simple agroforestry, namely the genera Pheretima and Lumbricus. Whereas in complex 3 genus agroforestry namely Pheretima, Pontoscolex and Microscolex. The highest density of earthworms in simple agroforestry is from the genus Pheretima with a value of 17.78 individuals / m3 with a relative density of 80% and the lowest is Lumbricus 4.44 individuals / m3 with a relative density of 20% while the highest density of earthworms in the complex agroforestry is from the genus Pontoscolex with a value of 285.92 individuals / m3 with a relative density of 95.54% and the lowest is Microscolex of 1.48 individuals / m3 with a relative density of 0.49%. Correlation in simple coffee agroforestry (positive correlation) namely water and phosphorus content. While negative correlations are temperature, humidity, pH, organic matter, N-total, C / N Nisbah, C-Organic, and Potassium. In complex coffee agroforestry, a positive correlation is temperature and water content. While negative correlations are humidity, pH, organic matter, N-total, C / N Ratio, C-Organic, phosphorus and Potassium.