Impact of different soil tillage added bio-ameliorant on nutrient concentration and growth maize-soybean intercropping adaptive to climate change in dry land

¹ Agroecotechnology Study Program, Faculty of Agriculture University of Mataram, Jl. Majapahit 62 Mataram 83125, Lombok, Nusa Tenggara Barat, Indonesia
² Department of Soil Science Faculty of Agriculture, University of Mataram, Jl. Majapahit 62 Mataram 83125, Lombok, Nusa Tenggara Barat, Indonesia

^* Corresponding author: astiko@unram.ac.id

Abstract

Climate change hurts the production of food crops, especially maize, and soybeans, on dry land. This climate change affects the concentration of nutrients and the growth of maize-soybean intercropping on dry land. This study aimed to determine the impact of different soil tillage added with bio-ameliorant on nutrient concentrations and the growth of climate change adaptive maize-soybean intercropping in the dry land of North Lombok, Indonesia. The research was conducted from May to July 2023 in West Pemenang Village, Pemenang District, and North Lombok Regency. The study used an experimental method in the field using a randomized block design by testing five tillage techniques i.e., O_o: without tillage, O₁: without tillage, only sprayed with pre-growth herbicides before planting, O₂: minimum tillage is only hoeing, O₃: simple tillage and leveling, O₄: intensive tillage by hoeing, loosening, and leveling. The results showed that the intensive processing technique, complete with the addition of bio-ameliorant, significantly affected the nutrient concentration and growth of the maize-soybean intercropping that was adaptive to climate change in dry land. Plants can be improved to be more adaptable to climate change through intensive tillage and adding bio-ameliorants.