Bragg soybeans were planted in nematicide-treated and nontreated plots on 15 May, 15 June, 1 July, and 15 July in 1980 and 1981 to determine the influence of planting date on damage caused by H. glycines. Although earlier studies showed the nematode was sensitive to high soil temperatures (> 34 C), late planting did not reduce damage caused by the nematode. Yields from plots treated with 1, 2-d...

Computer vision, when used in open and unstructured environments as in the inspection of crops, requires the use of specific vision systems acquiring algorithms prepared for such situations. These algorithms work mainly with images composed of complex objects, textures, shadows and brightness. The present project aims to apply an omnidirectional vision system for mobile robot navigation in agri...

Contents 1. Introduction 2. The unique character of forestry planting stock 2.1 Nursery-cultured planting stock 2.2 Wildings 3. The role of forest nurseries in forest management 4. Does the nursery affect the planting stock? 5. Types of nurseries 5.1 Bareroot nurseries 5.2 Container nurseries 5.3 A combination of container and bareroot nursery culture 6. Establishing a new nursery 6.1 Economic ...

for planting fine seeds in cellular trays, an automatic pneumatic seeder was designed, constructed and evaluated. catia software was used to design and analysis the system parts of the seeder. different parts of the seeder, including vibrating seed hopper, vacuum boom, seed picking nozzles, seed tube, pneumatic system and electronic control unit for automation of the seeder, were designed and c...

the purpose of this research was to assess the influence of several orchard systems involving trees trained to different leader numbers on growth, cropping, and fruit quality of two apple cultivars. the study was conducted during 1994-2007 at the fruit experimental station in samotwór, next to wrocław (south-western poland). one-year-old trees of ‘elstar’ and ‘jonagold’ cultivars on the m.9 roo...

Knowledge about fungi diversity following different planting patterns could improve our understanding of soil processes and thus help us to develop sustainable management strategies. The objective of this study was to determine the impact of different furrow-ridge mulching techniques on fungal diversity in rhizosphere soil under continuous cropping system. The investigated treatments were: flat...

the main method of rice planting in iran is transplanting. due to poor mechanization of rice production, this method is laborious and costly. the other method is direct seeding in wet lands which is performed in the one third of rice cultivation area of the world. the most important problem in this method is high labor requirement of weed control. in order to compare the different rice planting...

this paper investigates the key factors affecting the foreign direct investment (fdi) inflow to deve­­loping countries during the period (1995-2010) with emphasis on the financial development. financial development, as an important factor in fdi absorption and a prerequisite for utilizing the benefits of fdi, not only increases the fdi inflow in developing countries, but also improve the absorp...