نتایج جستجو برای: rice production technologies

تعداد نتایج: 853914  

2002
LAREEF ZUBAIR

Despite advances in the capacity to predict the evolution of the El Niño–southern oscillation (ENSO) phenomenon and advances in understanding the influence of ENSO on rainfall in tropical regions such as Sri Lanka, there has been limited use of climate predictions for agricultural decision-making. Climatic fluctuations have a profound influence on the cultivation of crops such as rice, which is...

2015
Ning An Mingsheng Fan Fusuo Zhang Peter Christie Jianchang Yang Jianliang Huang Shiwei Guo Xiaojun Shi Qiyuan Tang Jianwei Peng Xuhua Zhong Yixiang Sun Shihua Lv Rongfeng Jiang Achim Dobermann Wenju Liang

Meeting the future food security challenge without further sacrificing environmental integrity requires transformative changes in managing the key biophysical determinants of increasing agronomic productivity and reducing the environmental footprint. Here, we focus on Chinese rice production and quantitatively address this concern by conducting 403 on-farm trials across diverse rice farming sys...

2016
Zhihai Yang Amin W. Mugera Fan Zhang Hossein Azadi

Insufficient and high variability in rice yield is a threat to food security in China, prompting the need for strategies to mitigate yield variability and increase productivity. This study investigates the presence of production risk and technical inefficiency for a sample of rice farms in the Xiangyang city of China using a stochastic production frontier framework. Results from the risk functi...

2014
Jeong Jun Kim Ling Xie Ji Hee Han Sang Yeob Lee

Recently, the Q biotype of tobacco whitefly has been recognized as the most hazardous strain of Bemisia tabaci worldwide, because of its increased resistance to some insecticide groups. As an alternative control agent, we selected an Isaria javanica isolate as a candidate for the development of a mycopesticide against the Q biotype of sweet potato whitefly. To select optimal mass production med...

Chioma Udo Nwaobiala .

The poor performance of fishery subsector is most clearly evidenced by low adoption of fishery production technologies by farmers. The purpose of this research was analyzing influence of socio-economic factors on the adoption of fish production technologies by community-based farmers in Cross River State, Nigeria. A Multistage random sampling technique was used in selecting 60 community-based f...

2016
Dennis Wichelns

Rice production is susceptible to damage from the changes in temperature and rainfall patterns, and in the frequency of major storm events that will accompany climate change. Deltaic areas, in which millions of farmers cultivate from one to three crops of rice per year, are susceptible also to the impacts of a rising sea level, submergence during major storm events, and saline intrusion into gr...

2015

The study focused on the production cost efficiency and profitability of Abakaliki rice in Ihialia Local Government Area of Anambra State, Nigeria.. A random sampling technique was employed to select a total of 100 Abakaliki rice farmers from the study area. Data collection was achieved through the administration of structured questionnaire assisted with personal interview. Data analysis was do...

Journal: :Revista Virtual de Química 2011

2014
B. ROY

Seed is the most important input to harvest a good crop. The potential yield of crop depends on the quality of the seed used for cultivation of crop. Use of quality seeds alone can enhance the crop productivity by 15-25%. One of the main reasons for low productivity of crops is unavailability of reliable quality seeds in the local markets. To enhance productivity, seed should be of high quality...

2015
Rahul Shaw Sudip Kundu Ying Xu

More than 20% of the total caloric intake of human population comes from rice. The expression of rice genes and hence, the concentration of enzymatic proteins might vary due to several biotic and abiotic stresses. It in turn, can influence the overall metabolism and survivability of rice plant. Thus, understanding the rice cellular metabolism, its plasticity and potential readjustments under di...

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