Daftar Isi:
  • Wastewater of soybean is organic liquid contains a number of essensials nutrient especially nitrogen needed by plants. Wastewater of soybean can be used as organic liquid fertilizer and can minimize the impact of water pollution. This study aimed to analyze the contrast of various consentrations of soybean wastewateron crop growth of spinach. This type of research is true experimental. This study was conducted during one month with RAL using a consentrations 20%, 40%, 60%, 80%, 100% with 4 repititions. Data analysis techniques used One way Anova and a futher Test of Tukey. The result shows that administrations of soybean wastewater at consentration of 40% effect on plant heigh 14 days, and consentration 60% on effect on number leaves 14 days and 21 days, consentration 100% on effect on leaf area 14 days, 21 days and 28 days, consentration 60% on effect plant biomasm The result of the research can be utilized as a source of learning biology for 3rd grade senior high school students of growth and development material because has met 6 conditions of research results as learning resources clarity potential, compliance with the learning objectives of the materials goal, the allocation of information that will be reveald by the clarity of exploration, guidelines that will be achieved.