In increasing the supply of food in residential areas, it is necessary to encourage the use of land and water sources in the yard even though the land area is limited. The design of multilevel drip irrigation may be an option in these housings, and therefore it is necessary to test and determine the ability of the irrigation to discharge, uniformity and soil moisture produced. This study aims to determine the effect of using inch PVC pipe as a secondary network on discharge, uniformity (CU) and soil moisture (w) in a multilevel drip irrigation system. Experiments were carried out with a 150 liter reservoir water source 3 m high, soil moisture test with a test duration of 5 minutes, 10 minutes and 15 minutes. Data analysis was carried out on discharge data (Q), irrigation volume and soil moisture. The research results are presented in tables, graphs and concluded descriptively. The results showed that the secondary pipe flow rate was Q1 822.54 cm3/sec, Q2 107.47 cm3/sec and Q3 15.39 cm3/sec. Irrigation uniformity in TSK irrigation operations obtained CU of 72.67% and in SK obtained CU of about 51.49% to 89.34%. Soil moisture produced at a duration of 5 minutes, 10 minutes and 15 minutes with an initial soil moisture condition range of 14%-28%, the results on the 1st floor (w1) ranged from 41%-50%, for the second floor w2 it was around 31%-45 % and on the third floor w3 around 25%-40%
Tomato farming in the dry land of Salut Village, North Lombok is very often done by farmers, because the plants are short-lived and the selling price of the harvest is quite stable. However, the development of tomato plants in this region is still constrained by the high demand for plant water (KAT), because there are not many references. For this reason, this study aims to determine the amount of water needed for tomato planting and other parameters for each growth phase (f). The study is conducted on a land measuring 7m x 28 m, the size of the beds around 0.75 m x 28 m, the source of water from a tank with a capacity of 1600m3 and drip irrigation for crop irrigation. KBT analysis used a formula (Caoli, 1967), with analysis data from field data when planting tomatoes, so the results of the study are expected to be more realistic to address these obstacles in the development of tomato plants in the district of North Lombok. KAT analysis results with the Caolli formula show, for once irrigation in the initial phase (f1) around 0.738 m3, the active vegetative phase (f2) around 1.667 m3 and the fertilization phase until maturation of the initial fruit (f3) around 3.087 m3. The amount of soil moisture (w) additional irrigation in each phase is for f1 around 4% -5%, f2 around 6.5% -12% and f3 around 12% -17%. The duration of drip irrigation by 40 minutes needs to be shortened in phase f1, for phase f2 the duration is sufficient, and in phase f3 the duration needs to be added by more than 40 minutes or the irrigation schedule is shortened to less than 4.
Peak discharge flood analysis is very crucial in waterworks design. The proper design flood discharge will produce effective construction dimensions as project requirement. Therefore, flood design calculations must be analyzed using appropriate methods. The problem in estimating design flood discharge is usually found in ungauged watersheds which do not have any water discharge measuring equipment.This study wants to test the flood design method using rain data input to be applied to the Babak River, so the result can be used as a guide in the selection of flood discharge calculation techniques in other ungauged watersheds.The accuracy test is carried out by comparing the results of these methods with the flood design resulted from a frequency analysis of the Annual Maximum Series. Based on the results of the calculation, the peak flood of the Harpers method has the smallest RE and RMSEP values are 8.960% and 88.546 respectively. Thus, it can be concluded that the calculation of the design of the flood peak Haspers method has the best accuracy of the analysis results when compared with the Melchior and Weduwen methods for Babak River.
Agricultural development with horticultural crops on dry land is one of the government's efforts to increase dry land productivity so that new paddy fields are created in the Bayan area. Noting that land infiltration capability and its classification are important factors needed in irrigation planning to support the development of horticultural agriculture, so it is necessary to conduct field research on this matter. This study aims to determine the characteristics and classification of land infiltration and determine the trend of irrigation that can be applied. Field infiltration tests were carried out in Anyar and Sukadana villages with 4 test points each. The infiltration rate test in the field was carried out using a double ring infiltrometer and a soil test at the Geotechnical Laboratory, Faculty of Engineering, Unram. Analysis of the data used Horton's formula as a comparison and the results of the analysis were presented in the form of tables and graphs, conclusions were made descriptively. The results showed that the average infiltration rate in Anyar Village was at point 1 = 26.90 cm/hour, point 2 = 14.94 cm/hour, point 3 = 27.33 cm/hour, and point 4 = 8.21 cm/hour with soil including sandy clay. Infiltration rate classification of points 1 and 3 is very fast, point 2 is fast and location 4 is rather fast. For Sukadana Village the infiltration rate was obtained at point 1 = 43.52 cm/hour, point 2 = 36.67 cm/hour, point 3 = 12.86 cm/hour, and point 4 = 10.97 cm/hour, with the condition sandy clay soil. Sukadana's infiltration rate classification points 1 and 2 are very fast and points 3 and 4 are rather fast. Based on the results of the infiltration test, for very fast and fast infiltration, it is potential to apply jet irrigation such as sprinklers or perforations and for rather fast infiltration, drip irrigation can be applied with limited drip system
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.