نتایج جستجو برای: family farming

تعداد نتایج: 443867  

2015
Paul Corral

Paul Corral (American University) Most endogenous sample selection issues have been dealt with variants of Heckman's selection model. The model relies on the assumption of normality. However, when dealing with data where the data generating process is unknown, and the data may be less than ideal an information theoretic approach may be more suitable. During the summer I have been working on imp...

Journal: :Axioms 2016
Gary E. Horne Klaus-Peter Schwierz

Data Farming is a process that has been developed to support decision-makers by answering questions that are not currently addressed. Data farming uses an inter-disciplinary approach that includes modeling and simulation, high performance computing, and statistical analysis to examine questions of interest with a large number of alternatives. Data farming allows for the examination of uncertain...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده کشاورزی 1390

بررسی تنوع گونه ای و تغییرات فصلی کنه های شکارگر پرواستیگماتا بالاخانواده های bdelloidea، erythraeoidea و raphignathoidea در باغ های میوه دانه دار شهرستان مشهد چکیده کنه های شکارگر زیرراسته پرواستیگماتا از مهمترین دشمنان طبیعی کنه های تارتن، حشرات ریز مانند سفیدبالک ها، تریپس ها، شته ها و شپشک ها می باشند. به منظور بررسی فون کنه های بالاخانواده های raphignathoidea، bdelloidea و erythraeoidea ...

2015
Elizaveta Pershina Jari Valkonen Päivi Kurki Ekaterina Ivanova Evgeny Chirak Ilia Korvigo Nykolay Provorov Evgeny Andronov A. Mark Ibekwe

One of the most important challenges in agriculture is to determine the effectiveness and environmental impact of certain farming practices. The aim of present study was to determine and compare the taxonomic composition of the microbiomes established in soil following long-term exposure (14 years) to a conventional and organic farming systems (CFS and OFS accordingly). Soil from unclared fores...

Journal: :Revista Brasileira de Ciências Ambientais 2022

In the Brazilian Cerrado, land-use change caused by expansion and intensification of agribusiness farming has led to dramatic socio-environmental problems. To foster sustainable development, students have learn about land use according Sustainable Development Goals how implement them on their home farm future workplace. Through a questionnaire-based survey, our study explored perceptions 128 at...

2013
Ajin Zou Shilong Zhang Xiuchun Xiao

One ecological environment monitoring system of Litopenaeus vannamei farming has been developed in order to protect and regulate the ecological environment of Litopenaeus vannamei farming, halt and reverses the situations in the ecological environment deterioration of Litopenaeus vannamei farming and the little farming success rate. The early warning information of ecological environment degrad...

2016
Saem Lee Trung Thanh Nguyen Patrick Poppenborg Thomas Koellner

While organic farming is well established in Europe a nd USA, it is still catching up in Asian countries. The government of South Korea has implemented environmentally friendly farming that encompasses organic farming. Despite the promotion of environmentally friendly farming, it still has a low share in South Korea and partially converted farming has emerged in some districts of South Korea. H...

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