Necessary quality of soil cultivation is not always achieved by disk plough-harrows. To solve this problem the improved working unit - flat hexagonal was proposed. The aim investigation to determine dependence functional efficiency tilling implement with bodies on its mechanical and technological parameters. process interaction plant residues a subject investigation. assess tillage depending ap...

After corn mechanical harvest in autumn the cold region of northeast China, straw mulching leads to high soil topsoil water content and slow ground temperature rise spring sowing season, which may result a no-tillage planter being unable operate time, delayed date, poor seedling emergence quality, low grain yield. Based on problems moisture season conservation tillage with mulching, an experime...

Straw mushrooms were grown on lead contaminated rice straw and stubble. Study materials were dried, acid digested, and analyzed for lead using flame atomic absorption spectrophotometry. The results showed the highest lead concentration in substrate was 445.350 mg kg⁻¹ in Treatment 3 (T3) and the lowest was BD (below detection) in Treatment 1 (T1). The maximum lead content in straw mushrooms was...

Macrophomina phaseolina has a wide host range and is responsible for causing losses on m cultivated and wild plant species. So far in Pakistan it has been reported to cause disease on hosts including field crops, pulses, flowers and vegetable have been reported. Infection on s first reported from Sri Lanka in 1927 and in 1982 it was reported from sunflower field in fungus is reported to be soil...

The Mexican rice borer, Eoreuma loftini (Dyar), is an invasive pest of rice, Oryza sativa L., in the Gulf Coast region of the United States. This pest also damages sugarcane, Saccharum spp. hybrids; corn, Zea mays L.; and sorghum, Sorghum bicolor (L.) Moench, and feeds on weedy noncrop grasses. Multiple aspects of integrated pest management including use of pheromone traps, manipulation of plan...

Under the North Sea Agreement, Norway was obliged to reduce the discharge of nutrient salts from agricultural fields by 50% within 1995. Remote sensing from satellites can be used to monitor soil tillage in the areas concerned. An experiment was carried out which shows that it is possible to classify the different agricultural classes with a high degree of accuracy using LANDSAT TM images. Howe...

ceived dimensions (such as age, gender, race, or health) has application in areas as diverse as psychology, medicine, and forensics. We can use prototype images to define the salient features of a particular face classification (for example, European female adult or EastAsian male child). We then use the differences between two prototypes to define an axis of transformation, such as younger to ...

Negative frequency-dependent sexual selection maintains striking polymorphisms in secondary sexual traits in several animal species. Here, we test whether frequency of beardedness modulates perceived attractiveness of men's facial hair, a secondary sexual trait subject to considerable cultural variation. We first showed participants a suite of faces, within which we manipulated the frequency of...