搜索结果: 1-15 共查到“农学 past”相关记录16条 . 查询时间(0.14 秒)
Tree cover increased in Southeast Michigan over the past 30 years(图)
Tree cover increased Southeast Michigan over past 30 years
2020/8/14
The extent of both tree canopy and urban sprawl increased in Southeast Michigan between 1985 and 2015, according to a new University of Michigan study that used aerial photos and satellite i...
Grey Scars of the Past: Case-Study-Based Green Principles of Historic Mill Redevelopment with a Sustainable Future
Case-Study-Based Green Principles Historic Mill Redevelopment
2014/12/8
Historic mill buildings are vast structures that tend to have a negative connotation associated with them. They are usually looked at as eyesores or symbols of a historic, working past that should be ...
The University of Queensland Gatton Past Students Association Scholarship has been awarded to aspiring veterinarian Jahk Hughes.
From Thaer and Thunen until Today: Past and Future of Agricultural Landscape Use in Germany
Agricultural Landscape Energy Efficiency Sustainable Agriculture Technological Development Climate Change
2013/3/11
This article intends to present the historical development of German agriculture sector in last two centuries and underlined the benefit of the advancement in agriculture sector to fulfil the growing ...
African cereal demand and supply analysis: Past trends and future prospect
Africa per capita cereal harvesting land cereal yield
2011/1/12
For the past four decades there has been an overwhelming dependence on cereals for daily direct human food energy in Africa. Most of these demands were largely met through domestic production, althoug...
Influence of past forestry practices on western spruce budworm defoliation and associated impacts in southern British Columbia
impact Choristoneura occidentalis Pseudotsuga menziesii stand structure understorey mortality
2010/8/31
The western spruce budworm, Choristoneura occidentalis Freeman, is a native defoliator of interior Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco) forests in British Columbia. Repeated budworm defo...
Turkish Experience on Dryland Agronomy:Lessons from the Past and the Recent Experiments
Dry farming rotational cropping fallow systems manures zero-tillage Turkey
2009/9/29
Turkish dryland agriculture system had good productivity in the sixties with introduction
of high yielding cultivars and increase in fertilizer use. However, the sustainability of this
system is que...
Impact of Climate Warming in the Past 20 Years on Agriculture in Different Regions of China
climate change agricultural input grain production
2009/8/28
Based on the China Rural Statistical Yearbook of 1984-2003 published by State Statistics Bureau, and the annual temperature in the same period, impacts of temperature change, agricultural input, and p...
Analyzing Annual Rings to Evaluate Past Growth of Natural Cryptomeria japonica Trees in Sado Forest Reserve,Akita Prefecture,Northeastern Japan
Cryptomeria japonica disturbance growth natural Cryptomeria japonica forest regeneration
2009/8/27
We investigated past growth of trees within a natural stand of Cryptomeria japonica in Sado Forest Reserve, Akita Prefecture, northeastern Japan, relating to temporal changes in environmental conditio...
Comparison between the Past and Present Systems Used for National Forest Inventory in Japan
forest resource database Shinrinbo forest inventory nation-wide forest inventory
2009/8/24
The forest resource database, called Shinrinbo, provides complete statistics about Japanese forests and forest resources. In 1999, a collaboration between the Japanese Forest Agency and the forest dep...
Workshop of Forest Hydrology 2007;Past,Current,and Future of Forest Hydrology
Forest Hydrology Past Current Future
2009/8/24
Workshop of Forest Hydrology 2007;Past,Current,and Future of Forest Hydrology.
Increasing Water Productivity in Rice-Based Systems in Asia–Past Trends,Current Problems,and Future Prospects
Direct seeding Pump irrigation Virtual water Water productivity Water rights
2009/7/24
Rice is the largest user of water in Asia, probably accounting for more than half of irrigation water withdrawals. Two key trends in the Asian rice economy that may be affecting water productivity are...
Comparison of Past and Recently Developed Soybean Cultivars in Western Region of Japan
Characteristics Intermediate maturing type Lodging resistance Seed filling period Seed yield
2009/7/8
Forty-three soybean cultivars released from 1915 to 2001 in the western region of Japan were divided into three groups, I, II and III, by the released year and evaluated for their characteristics. Ol...
Change of Weather Condition and its Effect on Rice Production during the Past 40 Years in Japan
Climate change Climatic productivity CO2 concentration Early transplanting First-class rice
2009/7/8
In recent Japan, the increasing summer temperature and its influence on rice production have been recognized. The change in management and cultivar to adapt to this warming trend is necessary to main...
Effect of Sodium Ascorbate on Some Quality Characteristics of Turkish Pastırma
Sodium Ascorbate Quality Characteristics Turkish Pastı rma
2009/1/23
Different amounts of sodium ascorbate (0, 150, 300 and 450 mg/kg) were used in curing stage of Turkish pastırma production and the effect of sodium ascorbate was investigated on some quality cha...