نتایج جستجو برای: paddy farmer

تعداد نتایج: 14591  

Journal: :Int. J. Applied Earth Observation and Geoinformation 2015
J. Meghan Salmon Mark A. Friedl Steve Frolking Dominik Wisser Ellen M. Douglas

Irrigation accounts for 70% of global water use by humans and 33–40% of global food production comes from irrigated croplands. Accurate and timely information related to global irrigation is therefore needed to manage increasingly scarce water resources and to improve food security in the face of yield gaps, climate change and extreme events such as droughts, floods, and heat waves. Unfortunate...

2013
S. S. Mohapatra D.V.N. Lakshmi P. Mahanta

Conservation of agricultural crops and minimization of grain losses is challenging issue in the present scenario. Effective use of thermal energy for drying of paddy and other cereals for maintaining proper quality is the quality drying process. Natural convection grain dryer is quite suitable for under developed and developing countries like India where rural electrification and advanced dryin...

Journal: :Geophysical research letters 2016
J Dong X Xiao G Zhang M A Menarguez C Y Choi Y Qin P Luo Y Zhang B Moore

Paddy rice in monsoon Asia plays an important role in global food security and climate change. Here we documented annual dynamics of paddy rice areas in the northern frontier of Asia, including Northeastern (NE) China, North Korea, South Korea, and Japan, from 2000-2014 through analysis of satellite images. The paddy rice area has increased by 120% (2.5 to 5.5 million ha) in NE China, in compar...

2013
Yi Liu Kai-yuan Wan Yong Tao Zhi-guo Li Guo-shi Zhang Shuang-lai Li Fang Chen

A field experiment was conducted to (i) examine the diurnal and seasonal soil carbon dioxide (CO(2)) fluxes pattern in rice paddy fields in central China and (ii) assess the role of floodwater in controlling the emissions of CO(2) from soil and floodwater in intermittently draining rice paddy soil. The soil CO(2) flux rates ranged from -0.45 to 8.62 µmol.m(-2).s(-1) during the rice-growing seas...

2010
TERUJI SEKOZAWA

An automatic water management system for large-scale paddy fields has been developed. The purposes of that are to supply the paddy fields with water or drain water from that automatically, to decrease water consumption, and to have a good harvest. To accomplish the above purpose, developed system has five functions, (1) prediction of paddy growth stages, (2) water level control corresponding to...

2017
Tamrin Abdullah Andi Nasruddin Nurariaty Agus

Research on the populations of rice grain bug Paraeuscosmetus pallicomis Dallas (Hemiptera: Lygaeidae) in paddy field ecosystems was performed with the aim to determine the populations of rice grain bug in weed-free paddy field, weedy paddy field, and paddy dykes. Experiment was carried out in the village of Paccellekang in the district of Patallasang of Gowa Regency in South Sulawesi, Indonesi...

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...

Ahmad Rezvanfar Fatemeh Razzaghi Borkhani Hossein Shabanali Fami Mahtab Pouratashi

This study aimed to identify the factors influencing adoption of Integrated Pest Management (IPM) technologies by paddy farmers in Sari County of Iran. A sample of 260 farmers who selected randomly, participated in this study through a survey questionnaire. Findings of the study revealed a statistically significant positive correlation between adoption of IPM technologies and farmers’ participa...

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