scholarly journals INDIGENIOUS KNOWLEDGE OF URUG SOCIETIES FOR AGRICULTURE IRRIGATION IN BOGOR WEST JAVA

2020 ◽  
Vol 11 (2) ◽  
pp. 169
Author(s):  
Bahagia Bahagia ◽  
Fachruddin Majeri Mangunjaya ◽  
Zuzy Anna ◽  
Rimun Wibowo

The objective of this research to investigate traditional agricultural irrigation based on indigenious knowledge of  customary  urug societies in Bogor West Java. The research method use is Ethnoecology qualitative approach. This method is implemented because research have conection among human (cultural & social) and environment including traditional agriculture water management as well as the knowledge about environment. Data are collected by in-depth interview, observation and documentation. In order to determine respondents as major sources information use purposive sampling technique. The outcome is analized with combination numerous of method such as in-dept interview, observation, and documentation (triangulation data). There are some results including rice paddy field in Urug societies exert traditional terrascering for inventing land for cultivating of paddy because geograhpycally location of wet land paddy is mountainious. The another is traditional irrigation of Urug slue river water (main sources of irrigation) to to susukan (traditional reservoir). After that water is flowed to Selokan and continue to rice paddy field. The person who have mandatory for water agriculture management is mentioned as Ulu-ulu. Ulu-ulu is pivotal person because have chores for ensuring all farmer received water from river, Susukan and selokan. The other finding is Urug customary  societies applicate gotong royong (mutual cooperation) among member of societies typically in traditional agriculture irrigatin activity. Keywords: Indigenious Knowledge, Susukan, Ulu-ulu, Traditional irrigation, traditional agriculture

Author(s):  
Haiming Tang ◽  
Chao Li ◽  
Lihong Shi ◽  
Li Wen ◽  
Kaikai Cheng ◽  
...  

Abstract Soil organic matter (SOM) and its fractions play an important role in maintaining or improving soil quality and soil fertility. Therefore, the effects of a 34-year long-term fertilizer regime on six functional SOM fractions under a double-cropping rice paddy field of southern China were studied in the current paper. The field experiment included four different fertilizer treatments: chemical fertilizer alone (MF), rice straw residue and chemical fertilizer (RF), 30% organic manure and 70% chemical fertilizer (OM) and without fertilizer input as control (CK). The results showed that coarse unprotected particulate organic matter (cPOM), biochemically, physically–biochemically and chemically protected silt-sized fractions (NH-dSilt, NH-μSilt and H-dSilt) were the main carbon (C) storage fractions under long-term fertilization conditions, accounting for 16.7–26.5, 31.1–35.6, 16.2–17.3 and 7.5–8.2% of the total soil organic carbon (SOC) content in paddy soil, respectively. Compared with control, OM treatment increased the SOC content in the cPOM, fine unprotected POM fraction, pure physically protected fraction and physico-chemically protected fractions by 58.9, 106.7, 117.6 and 28.3%, respectively. The largest proportion of SOC to total SOC in the different fractions was biochemically protected, followed by chemically and unprotected, and physically protected were the smallest. These results suggested that a physical protection mechanism plays an important role in stabilizing C of paddy soil. In summary, the results showed that higher functional SOM fractions and physical protection mechanism play an important role in SOM cycling in terms of C sequestration under the double-cropping rice paddy field.


2018 ◽  
pp. 231-244 ◽  
Author(s):  
Kazuyuki Yagi ◽  
Katsumi Kumagai ◽  
Haruo Tsuruta ◽  
Katsuyuki Minami

2016 ◽  
Vol 46 (1) ◽  
pp. 70-79 ◽  
Author(s):  
Lak Jung Choe ◽  
Kwang Jin Cho ◽  
Min Su Han ◽  
Min Kyeong Kim ◽  
Soon Kun Choi ◽  
...  

2011 ◽  
Vol 61 (11) ◽  
pp. 2568-2572 ◽  
Author(s):  
Estefanía Geymonat ◽  
Lucía Ferrando ◽  
Silvana E. Tarlera

A novel methanotroph, designated strain E10T, was isolated from a rice paddy field in Uruguay. Strain E10T grew on methane and methanol as sole carbon and energy sources. Cells were Gram-negative, non-motile, non-pigmented, slightly curved rods showing type I intracytoplasmic membranes arranged in stacks. The strain was neutrophilic and mesophilic; optimum growth occurred at 30–35 °C with no growth above 37 °C. The strain possessed only a particulate methane monooxygenase (pmoA). Phylogenetic analysis based on 16S rRNA gene sequences indicated that the strain was most closely related to the moderately thermophilic strains Methylocaldum szegediense OR2T (91.6 % sequence similarity) and Methylococcus capsulatus Bath (91.5 %). Comparative sequence analysis of pmoA genes also confirmed that strain E10T formed a new lineage among the genera Methylocaldum and Methylococcus with 89 and 84 % derived amino acid sequence identity to Methylococcus capsulatus Bath and Methylocaldum gracile VKM-14LT, respectively. The DNA G+C content was 63.1 mol% and the major cellular fatty acid was C16 : 0 (62.05 %). Thus, strain E10T ( = JCM 16910T  = DSM 23452T) represents the type strain of a novel species within a new genus, for which the name Methylogaea oryzae gen. nov., sp. nov. is proposed.


2003 ◽  
Vol 69 (2) ◽  
pp. 115-119 ◽  
Author(s):  
Hiromitsu Furuya ◽  
Tsutomu Matsumoto ◽  
Shin-ichi Fuji ◽  
Hideki Naito

2018 ◽  
Vol 25 (9) ◽  
pp. 8388-8395 ◽  
Author(s):  
Yanfang Feng ◽  
Haijun Sun ◽  
Lihong Xue ◽  
Yueman Wang ◽  
Linzhang Yang ◽  
...  

2019 ◽  
Vol 445 (1-2) ◽  
pp. 425-437 ◽  
Author(s):  
Jianqing Wang ◽  
Mao Li ◽  
Xuhui Zhang ◽  
Xiaoyu Liu ◽  
Lianqing Li ◽  
...  

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