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All Journal Sains Tanah SAINS TANAH - Journal of Soil Science and Agroclimatology
Andy Bhermana
Assessment Institute for Agricultural Technology (AIAT) of Central Kalimantan
Earth & Planetary Sciences Education

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The Effect of Seed Dormancy Cracking Technique and Solid Inorganic Fertilizing at Productive Phase to The Quality of Seedless Watermelon at Drylands Anang Firmansyah; Andy Bhermana
Sains Tanah - Jurnal Ilmu Tanah dan Agroklimatologi Vol 14, No 2 (2017)
Publisher : Faculty of Agriculture, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15608/stjssa.v14i2.877

Abstract

The difficulty of seeding and sweetness quality of seedless watermelon is an obstacle for farmers. The objectives of this study were to know the successful of shoots growth with seeding treatment and production quality due to fertilizing package for seedless watermelon with the variety of Riendow F1. The experiment was conducted in dry season at upland areas in Palangkaraya. The experimental design for seeding randomized block design (RBD) 3x3 with treatment consisting of a control (G0), cracking seed by hitting (G1), cracking seed using pincette (G2). The experiment of fertilizing package at productive phase used of fertilizer used RBD 4x3. The treatment consisted of several packages of fertilizer, namely: without fertilization (P0), low fertilizer package (P1), medium fertilizer package (P2), and high fertilizer package (P3). Before the experiment, soil analysis was first conducted to determine land suitability classes. The results showed that the study site area has marginal suitability class with limiting factor involving rooting condition (S3rc). The highest germination was obtained in the cracking treatment compared to control, otherwise, the rate of death seeds for control was lower than cracking treatment although it is not significantly different according to statistics. For the parameter of fruit perimeter, it indicates that treatment of high fertilizing package was significantly different from the control, respectively, 64.25 cm and 53.96 cm. It also includes the weight of fruit, respectively, 4.05 kg and 2.80 kg. For the quality of watermelon, it showed that fertilizing packages at productive phase is significantly different from controls. The sweetness level at the medium fertilizing package (P2) has the highest level of 11.73oBrix, followed by the high fertilizing package (P3), 11.00oBrix, low fertilizing package (P1), 9.92oBrix and the lowest for control, 8.98oBrix. Application of medium fertilizing package at productive phase can then produce the highest quality level of watermelon.
Environmentally Sound Spatial Management Using Conservation and Land Evaluation Approach at Sloping Lands in Humid Tropic (A case study of Antang Kalang sub-district, Central Kalimantan, Indonesia) Andy Bhermana; Susilawati Susilawati
SAINS TANAH - Journal of Soil Science and Agroclimatology Vol 16, No 1 (2019): June
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1757.088 KB) | DOI: 10.20961/stjssa.v16i1.24004

Abstract

The main problem faced by sloping lands in the humid tropic includes land degradation influencing natural ecosystem damage broadly. Land conversion and improper land-use have been widely recognized as the main cause of environmental damage since the demands for agricultural lands become greater than land resource available. The objective of this study was to determine the concept of appropriate land-use planning through environmentally sound spatial management in order to prevent land and environmental degradation.  The sub-district of Antang Kalang was chosen as study area representing sloping lands in humid tropic that have a susceptibility to erosion. Conservation approach by the use of USLE erosion risk prediction model and land evaluation through land suitability classification was used in this study. The geographic information system (GIS) and remote sensing (RS) technology were applied to generate spatial basic information and to assist in spatial analysis. Two crops, upland rice, and rubber,  representing food crop and estate p have been selected based on the local resource that has been existed since a long time ago. The result of spatial analysis shown that the arable land for agricultural practices covers  9,039 hectares (23.19%) while for non-arable land, it is allocated for forest preservation with total areas 29,934 hectares (76.81%). Land-use planning and land resources management involving conservation aspect and land suitability evaluation should be taken into account for farming practice at sloping lands areas since the value of soil loss potential appears as an indicator of erosion risk. Permanent cultivation system and the intercropping farming system is the option of recommended agricultural practice at sloping lands in the humid tropic that have a susceptibility to erosion.
Co-Authors Anang Firmansyah Susilawati Susilawati