The Effect of Organic Fertilizers on Growth and Yield of Water Spinach (Ipomoea reptans Poir)

Selvia Dewi Pohan

doi:10.25077/jijcs.3.2.37-44.2021

Abstract

Water spinach (Ipomoea reptans Poir) had been identified as a nutritious vegetable with high demand in Indonesia. Besides, this plant also has been evidenced to play an important role in environmental cleaning as phytoremediator. The study about the effect of organic fertilizers on the growth and yield of water spinach (Ipomoea reptans Poir) has been conducted in the Green House of Biology Department, Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan. The study aims to investigate the most effective type of fertilizers and the dose for water spinach’s (Ipomoea reptans Poir) growth and yield. A Completely Randomized Factorial Design was designed for the experiment with two factors and three repetitions. The first factor is the type of fertilizer (chicken manure, cow manure, and compost), and the second factor is the dose of the fertilizer (1:1, 2:1, and 3:1). The parameters such as plant height, number of shoots, number of leaves, fresh weight, dry weight, leaf’s total chlorophyll content, and water content were measured to evaluate plant growth and yield. The General Linear Model used SPSS 21 programs was applied to analyze the collected data. Study results revealed that cow manure increased plant growth and yield significantly with dose 2:1 as the finest treatment, followed by dose 3:1. Cow manure also increased total chlorophyll content (8.0574c mg. L-1), with the most suitable dose was 2:1 (8.2807 mg. L-1). The plant’s water content tended to be high in chicken manure (93%), and the lower water content was in cow manure with dose 3:1 (87.5%).

Highlights

Climate change is one of the major factors that affected agricultural productivity
The materials used in this study were as follows: groundwater spinach seeds, soil, organic fertilizers, 80% acetone, aquadest, etc
Compost fertilizer conferred a significant effect on the number of plant leaves, the increase in the number of plant leaves was better on the treatment of cow manure at a dose of 2:1

Summary

Introduction

Climate change is one of the major factors that affected agricultural productivity. Several studies have been revealed regarding the effects of climate change on agricultural productivity. The forecast of climate change is still unconvinced. Besides being affected by climate change, the agriculture sector contributes to the changes itself (Aydinalp and Cresser, 2008). The government in many countries has supported improving agricultural productivity and implementing sustainable agricultural systems and management. The efforts such as using technology, controlling pesticide usage, avoiding environmental pollution, and relying more on biological utilization rather than chemical products have been conducted. Utilization of organic fertilizers confers agricultural products with high quality without damaging soil and environment equilibrium

Methods

Results

Conclusion