Peningkatan Kesuburan Tanah Inseptisol serta Pertumbuhan dan Produksi Kedelai Akibat Pemberian Kompos Diperkaya Cangkang Telur Ayam dan Mikroba Bermanfaat

Increased Inceptisol Soil Fertility as well as Growth and Production of Soybeans due to Compost Enriched Eggshells and Beneficial Microbes

Abstract

The availability of nutrients in the soil is a major factor affected the growth and production of plants. This study aims to determine the response of compost enriched chicken egg shell and beneficial microbes (rhyzobium + mycorrhiza) to some aspects of soil properties of Inseptisol as well as the growth and production of soybeans. This research was conducted in field trial UPT Balai Induk Palawija Tanjung Selamat and Soil Biology Laboratory Faculty of Agriculture University of North Sumatra. This research used was a Factorial Random Block Design. The first factor was chicken egg shell enriched consist of 4 treatments 0 ton/ha, 10 ton/ha, 20 ton/ha, 30 ton/ha and second factor was beneficial microbe (rhyzobium + mycorrhiza) consist of 2 treatmenst 0 g/polybag and 10 g/polybag. The results showed that the enriched compost enriched chicken egg shell increased the soil pH, C-organic, Ca-exchanged, shoot dry weight , the amoont of root nodule, percentage of degree of root infected by mycorrhiza, and weight of 100 seeds and the application of beneficial microbes increased root nodule and root infection degree.

Ketersediaan hara di dalam tanah merupakan faktor utama yang menentukan pertumbuhan dan produksi tanaman. Penelitian ini bertujuan untuk mengetahui respon pemberian kompos diperkaya cangkang telur ayam dan mikroba bermanfaat (rhizobium + mikoriza) terhadap beberapa aspek sifat tanah Inseptisol serta pertumbuhan dan produksi kedelai. Penelitian ini dilaksanakan di lahan percobaan UPT Balai Induk Palawija Tanjung Selamat dan Laboratorium Biologi Tanah Fakultas Pertanian Universitas Sumatera Utara. Penelitian ini menggunakan Rancangan Acak Kelompok Faktorial. Faktor pertama adalah kompos diperkaya cangkang telur ayam terdiri dari 0 ton/ha, 10 ton/ha, 20 ton/ha, 30 ton/ha dan faktor kedua adalah mikroba bermanfaat (rhizobium + mikoriza) yaitu 0 g/polybag dan 10 g/polybag. Hasil penelitian menunjukkan bahwa pemberian kompos diperkaya cangkang telur ayam dapat meningkat pH tanah, C-organik, Ca-tukar, bobot kering tajuk, bintil akar, derajat infeksi akar, dan bobot 100 biji dan pemberian mikroba bermanfaat dapat meningkatkan bintil akar dan derajat infeksi akar.