Abstract
The study aimed to determine the dynamics of soil moisture in various standing water levels and dosages of organic fertilizer. The experiment was arranged in a Completely Randomized Block Design (CRBD) with a 3 × 3 factorial treatment in 3 replicates. The first factor was 3 different water levels, namely 10 cm (T1), 20 cm (T2), and 30 cm (T3). The second factor was 3 levels of dosages of organic fertilizer, namely 0 g pot-1(P1), 35 g pot-1 (P2), and 70 g pot-1 (P3). The highest of soil moisture was obtained in the 10 cm water levels and 70 g organic fertilizer (T1P3) and the lowest in the 30 cm water levels and without organic fertilizer (T3P1). The highest infiltration rate was obtained in the 30 cm water levels and 70 g pot-1 organic fertilizer (T3P3), the 30 cm water levels and 35 g pot-1 organic fertilizer (T3P2), the 20 cm water levels and 70 g pot-1 organic fertilizer (T2P3), and the lowest in the combination of the 10 cm water levels and without organic fertilizer (T1P1). The highest capillary rate was obtained in the combination of the 30 cm water levels and 70 g organic fertilizer (T3P3) and the lowest in the combination of the 30 cm water levels and without organic fertilizer (T3P1).
Highlights
A steady source of water for developing and growing of plants is needed since plants need high water, so that water is so important for plant growth.J Trop Soils, Vol 25, No 3, 2020: 157-164 ISSN 0852-257X ; E-ISSN 2086-6682If the amount of groundwater is less, the plant growth will be restricted due to water is a staple of photosynthesis and the transportation of plant nutrients (Gardner et al 1991, Salisbury and Ross 1995; Utomo et al 2016)
The results of the analysis of variance showed that the interaction between the water level and the dose of organic fertilizer significantly affected the soil moisture
The highest of soil moisture was obtained in the T1P3 (10 cm water levels and 70 g organic fertilizer) treatment and the lowest in the T3P1 treatment (30 cm water levels and without organic fertilizer)
Summary
A steady source of water for developing and growing of plants is needed since plants need high water, so that water is so important for plant growth.J Trop Soils, Vol 25, No 3, 2020: 157-164 ISSN 0852-257X ; E-ISSN 2086-6682If the amount of groundwater is less, the plant growth will be restricted due to water is a staple of photosynthesis and the transportation of plant nutrients (Gardner et al 1991, Salisbury and Ross 1995; Utomo et al 2016). The movement of water comes from a place that has a lot of humidity towards a place that has less soil moisture (Asdak 2010). S Nur et al.: Soil Moisture under Different Water Levels and Organic Fertilizer through the soil pore space caused by gravitational and capillary forces. If soil moisture is optimum for plant growth, a large amount of water in the intermediate-sized pore space in the soil can move and can be used by plants. Efficient irrigation must be provided to maintain growth for plants that have shallow root systems, this is because these plants are very vulnerable to loss of water from the topsoil (Patel and Rajput 2013)
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