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搜索结果: 1-7 共查到农学 economic value相关记录7条 . 查询时间(0.254 秒)
The economic value of insect pollinators is much higher than previously thought, according to researchers at the University of Pittsburgh and Penn State University. The team also found that ...
The paper aims at pointing to possibilities of using the Economic Value Added index in evaluating the forest enterprise performance. The given index ranks among the indices of fourth-generation evalua...
Many studies related to the multifunctionality of agriculture and rural areas have been conducted in both the natural and social sciences. One of the research topics dealt with in agricultural economi...
Forests, like some other natural resources, perform a set of functions to meet the needs of people. It is usually impossible to state the monetary value of all the goods and services provided by fores...
Two field experiments investigated the applicability of two French breeding lines of winter pea for green crop as winter catch crop and for seeds as the main crop. Over the eight-year research period ...
The responses of cucumber on forced culture involving a range of carbon dioxide concentrations and length of supplementation times in a greenhouse, a long-term supplementation from 7:30 a.m. to 14:30 ...
This study determined the relative economic value of maize- okra intercrops in Edo State, Nigeria. The results of analysis show Land Equivalent Ratio (LER) of 0.82, Relative Value Total (RVT) of 0.99 ...

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