农学 >>> 农学总论 作物学 园艺学 土壤学 植物保护学 农药学 林学 畜牧学 兽医学 水产学
搜索结果: 31-45 共查到农学 cost相关记录45条 . 查询时间(0.059 秒)
Cotton (Gossypium hirsutum L.) and related species all contain gossypol, a polyphenolic compound that is an integral part of the cotton plant’s self-defense system against insect pests and possibly so...
One pre‑emergent application of oryzalin 40% SC herbicide and one hoeing was found to control maximum pests of cabbage crop. By following proper date of sowing of cabbage crop and contr...
This study uses a multi-agent system to simulate the behaviour of economic players in a context of rapidly evolving environmental policy. The area under study is represented by a sector of a French ...
The production of fish meal in Nigeria from the wild sources has for some period now been dwindling and when available are very expensive, because most of the fish meal used in fish feed formulation...
This study was carried out to analyze the cost efficiency of maize production in the chitwan district, nepal with a view to predict economic efficiencies using stochastic frontier cost function. The...
Malbranchea sulfurea and Aspergillus niveus were selected as potent phytase producers during a previous study. The first is a true thermophile, while the second is thermotolerant. Under solid substra...
This study has been carried out in Rize-Çayeli production region with the purpose of determining the input and the cost in tea production. The data necessary for the study was obtained by means...
This research was carried out in Kenan Evren Research and Application Farm of Ankara University, Faculty of Agriculture. It was aimed that labour usage and determination of production cost in broiler...
The recreational use value of Kursunlu Waterfall Nature Park in the Antalya province of Turkey was studied by using the Individual Travel Cost Method (ITCM). For this purpose, 500 on-site questionnair...
Bacillus thuringiensis (B.t.) has been widely used in insect biocontrol programs, but the large scale production of this bacillus is expensive because of the high cost of the production processes (med...
The study examined costs and returns in cocoa production in Cross River State in the context of three identified management systems of cocoa production in the area, namely owner-managed, lease-managed...
An experiment was carried out to assess the effect of replacing maize with wheat offal in broiler finisher diets on bird performance and feed cost. Six rations were formulated using 0, 5, 10, 15, 20, ...
The need to continuously multiply new improved seeds for onward delivery to the farmers, with the sole aim of attaining food self-suffi ciency, necessitates this study. Data were collected from 17 mai...
Agriculture is facing stringent requirements for nutrient loss reductions. These reductions should be done cost-effectively. For instance, the European Water Framework Directive (WFD) emphasizes cost-...
The efficiency of the brooders was observed in respect of their ability to maintain temperature, fluctuation in temperature during operation and cost effectiveness. Following initial trial of temperat...

中国研究生教育排行榜-

正在加载...

中国学术期刊排行榜-

正在加载...

世界大学科研机构排行榜-

正在加载...

中国大学排行榜-

正在加载...

人 物-

正在加载...

课 件-

正在加载...

视听资料-

正在加载...

研招资料 -

正在加载...

知识要闻-

正在加载...

国际动态-

正在加载...

会议中心-

正在加载...

学术指南-

正在加载...

学术站点-

正在加载...