Nutrient Status and Mycorrhizal Population on Various Food Crops Grown Following Corn Inoculated with Indigenous Mycorrhiza on Sandy Soil of North Lombok, Indonesia

Abstract

This study was aimed to determine the nutrient status and population of arbuscular mycorrhizal fungi (AMF) on the second cropping cycle of corn-based cropping patterns which utilized indigenous mycorrhizal fungi on sandy soil. The experiment was conducted at the Akar-Akar village in Bayan district of North Lombok, in a Randomized Block Design, with 4 replications and 6 treatments of cropping cycles (P0 = corn-soybean as a control, in which the corn plants were not inoculated with AMF; P1 = corn-soybean, P2 = corn-peanut, P3 = corn-upland rice, P4 = corn-sorghum, and P5 = corn-corn, in which the first cycle corn plants were inoculated with AMF). Results indicated that the status of N, P, K and organic-C increased significantly up to 112%, 148%, 88%, 88% at 60 DAS and 66%, 135%, 54%, 60% at 100 DAS, respectively in the second cropping cycle of sorghum compared to control. Uptake of N, P, K and Ca the sorghum plants at 60 DAS of the second cropping cycle reached 200%; 550%; 120% and 490%, respectively a higher than in the control. Mycorrhizal populations (spore number and infection percentage) were highest in the second cycle sorghum, achieving 335% and 226% respectively, which were significantly higher than those in the control.

Pengaruh Beberapa Dosis Bioamelioran Plus Mikoriza Indigenus Terhadap Pertumbuhan Dan Hasil Jagung Ketan (Zea mays var. ceratina)

“…Setelah tanaman tumbuh, dilakukan penjarangan dengan menyisakan satu tanaman yang dilakukan pada umur 14 hst. Sedangkan Pemupukan dilakukan dengan pemberian pupuk dasar anorganik dengan aplikasi setengah dosis rekomendasi yaitu pupuk urea 175 kg ha -1 dan phonska 125 kg ha -1 (Astiko et al, 2016c). Pupuk anorganik sebagai pupuk dasar diberikan 1/2 dosis pada umur 7 hst dan 1/2 dosis sisanya diberikan pada 14 hst.…”

Konsentrasi Hara N, P Dan Hasil Beberapa Varietas Jagung Manis (Zea mays saccharata Strut.) Yang Ditambahkan Bioamelioran

“…Kebutuhan jagung manis yang semakin meningkat belum dapat terpenuhi karena masih rendahnya produktivitas jagung manis ini disebabkan karena kondisi tanah yang didominasi oleh partikel pasir yang porous, daya pegang air rendah, ketersedian unsur hara dan bahan organik rendah. Kondisi ini diperparah dengan permeabilitas tanah yang tinggi, peka terhadap erosi dan memiliki kapasitas tukar kation ( Astiko et al, 2016b).…”

“…Jenis mikoriza indegenus dari Lombok Utara yang digunakan merupakan koleksi pribadi Dr. Ir. Wahyu Astiko, MP (Astiko, 2015;Astiko et al, 2016b).…”

The Influence of Planting Density on Maize-Soybean Intercropping Inoculated with Organic Fertilizer

“…Arbuscular mycorrhizal inoculation gave better growth, P uptake and yield in plants treated with phosphate rock fertilizer and arbuscular mycorrhizal inoculation on upland rice plants [9]. The inoculation of arbuscular mycorrhizae can increase the weight of dry maize cobs, the nutrient status is much higher than without mycorrhizae [10,11].…”