نتایج جستجو برای: paddy growth

تعداد نتایج: 824156  

2012
B. S. Narasinga Rao

Rice is the major foodgrain of the world and it is the principle cereal consumed in India and other parts of Asia1. Milling of paddy to obtain edible rice grain yields two major byproducts of economic and nutritional importance, namely, paddy husk and rice bran. Paddy husk has no food value but has several industrial uses. Rice bran, on the other hand, can serve as an animal feed, as a human fo...

Journal: :تحقیقات مهندسی کشاورزی 0
محمدرضا علیزاده دانشجوی سابق دکتری دانشگاه تربیت مدرس سعید مینایی دانشیار دانشگاه تربیت مدرس تیمور توکلی هشتجین استاد دانشگاه تربیت مدرس محمد هادی خوش تقاضا دانشیار دانشگاه تربیت مدرس

paddy de-awning using a de-awner increases the uniformity and flow rate of paddy grains through the orifices of hoppers, bucket elevators and chutes. in this study the effects of paddy variety, rotational blade speed and moisture content on performance of a prototype de-awner machine were investigated. the experiment was conducted in a factorial design with three factors, variety (hashemi and b...

2012
Du Changwen Zhou Jianmin Keith W. Goyne

Paddy soils are classified as wetlands which play a vital role in climatic change and food production. Soil carbon (C), especially soil organic C (SOC), in paddy soils has been received considerable attention as of recent. However, considerably less attention has been given to soil inorganic carbon (SIC) in paddy soils and the relationship between SOC and SIC at interface between soil and the a...

2014
N. SUBASH M. MEENAKSHISUNDARAM C. SASIKUMAR N. UNNAMALAI

Objectives: The main objective of this study is to cultivate Trichoderma harizanum using agricultural waste as a substrate for the management of damping of disease and growth promotion in Chilli plants. Methods: T. harizanum was isolated from MCRC Main Agricultural Research Station, Chennai, and identified through microscopic observation by using standard keys. F. oxysporum, R. solani, and A.al...

Journal: :ISPRS journal of photogrammetry and remote sensing : official publication of the International Society for Photogrammetry and Remote Sensing 2015
Geli Zhang Xiangming Xiao Jinwei Dong Weili Kou Cui Jin Yuanwei Qin Yuting Zhou Jie Wang Michael Angelo Menarguez Chandrashekhar Biradar

Knowledge of the area and spatial distribution of paddy rice is important for assessment of food security, management of water resources, and estimation of greenhouse gas (methane) emissions. Paddy rice agriculture has expanded rapidly in northeastern China in the last decade, but there are no updated maps of paddy rice fields in the region. Existing algorithms for identifying paddy rice fields...

2003
Han-Chen Huang Chen-Wuing Liu Shih-Kai Chen Jui-Sheng Chen

This study investigates percolation and seepage through the bunds of flat and terraced paddies. Field experiments were conducted in Hsin-Pu of Hsin-Chu County, Taiwan, to measure the soil water content of various types of bund. Measurements revealed that the soil was unsaturated along the sloped surface of the terrace. Experimental results also indicated that seepage face flow did not develop e...

Journal: :Journal of environmental sciences 2008
Jiangzhou He Dong Qu

Dissimilatory Fe(III) reduction is a universal process with irreplaceable biological and environmental importance in anoxic environments. Our knowledge about Fe(III) reduction predominantly comes from pure cultures of dissimilatory Fe(III) reducing bacteria (DFRB). The objective of this study was to compare the effects of glucose and a selection of short organic acids (citrate, succinate, pyruv...

2016
Jie Tang Shuang Liang Zhaoyang Li Hao Zhang Sining Wang Nan Zhang

The study of greenhouse gas emissions has become a global focus, but few studies have considered saline-alkali paddy fields. Gas samples and saline-alkali soil samples were collected during the green, tillering, booting, heading and grain filling stages. The emission fluxes of CO2, CH4, and N2O as well as the pH, soil soluble salt, available nitrogen, and soil organic carbon contents were detec...

2017
Nickolas G. Kavallieratos Christos G. Athanassiou Raul N. C. Guedes Johanna D. Drempela Maria C. Boukouvala

Local potential competitor species are important determinants of the invasibility of an environment even when widely recognized invasive species are concerned since it may compromise its establishment. Thus, the outcome of the direct competition among the invasive khapra beetle, Trogoderma granarium, and the cosmopolitan species lesser grain borer, Rhyzopertha dominica and rice weevil, Sitophil...

1998

Recent anthropogenic emissions of key atmospheric trace gases (e.g. CO2 and CH4) which absorb infra-red radiation may lead to an increase in mean surface temperatures and potential changes in climate. Although sources of each gas have been evaluated independently, little attention has focused on potential interactions between gases which could influence emission rates. In the current experiment...

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