نتایج جستجو برای: less than 625 individuals per hectare

تعداد نتایج: 2634328  

Journal: :Journal of economic entomology 2010
Frédérique M De Lame David Epstein Larry J Gut Heidi Goldfarb James R Miller

Hand-applied dispensers are successfully used in mating disruption programs, but cost of labor to apply these dispensers limits their adoption. Creating hand-applied dispensers that release larger amounts of pheromone and that can be applied at lower densities per hectare could reduce the cost of mating disruption and increase its use. The effect of reducing the number of point sources per hect...

Journal: :فصلنامه علمی اکوفیزیولوژی گیاهان زراعی 0
آتنا نجفی تیرتاشی دانشجوی کارشناسی ارشد زراعت دانشگاه آزاد اسلامی واحد آیت الله آملی مهران محمودی استادیار گروه زراعت دانشگاه آزاد اسلامی واحد آیت الله آملی،آمل،ایران

in order to determine the effect of potassium silicate solution with elements of macro and micro elements on agronomic traits of rice, tarom, a field experiment in paddy fields galogah city - village marbles of the crop year 2014 was conducted. the results showed that the highest plant height (013/180 cm) to 2 liters per hectare and no interaction effects of potassium silicate elements. the res...

Journal: :Austral Ecology 2023

Climate change is increasing the frequency of extreme fires. In 2019–2020, fires burned 97 000 km2 native vegetation in south-eastern Australia, affecting many areas rainforest, which has historically less frequently. One year post-fires, we surveyed litter macroinvertebrates 52 temperate rainforest sites. Sites had experienced levels fire severity (unburnt, medium and high severity). We asked ...

2015
JULIAN KRZYŻANOWSKI Julian Krzyżanowski

The paper tackles the problem of making direct payments in the EU countries more equal. Two sets of indices and their evolution are being presented: payment rates per product and per hectare of eligible area. The need of redistribution of direct payments is being stressed, followed by the discussion on different scenarios of distribution among Member States. The model finally accepted by the EU...

2005

• The average annual economic loss due to OJD infection on farms was $7.68 per DSE or $65.92 per hectare. These figures represent the cost of premature sheep deaths, and lost wool and lamb production. There was substantial variation between farms, with some properties losing as much as $244.80 per hectare. Losses due to trading restrictions and variable input costs have not been included in the...

2012
Muhammad Mehedi Masud Md. Saifur Rahman Abul Quasem Al-Amin Fatimah Kari Walter Leal Filho

This paper examines the possible impact of climate change on Malaysian rice production. Using the Ricardian Method and farm household data, we have examined the effects on rice producers focusing on sharecropper adaptations and ecological causes. The principle goal of this research paper is to investigate the impact of climate variables such as temperature, rainfall and precipitation on rice pr...

Journal: :BIO web of conferences 2021

The study of the efficiency grain economy has shown that its level is determined by production costs. Correlation and regression analysis factors cost 100 kg revealed value determined, first all, intensification industry yield capacity leguminous crops. According to obtained result, in order lower grain, costs per hectare area under crops should not exceed 10.5 thousand rubles (the intensificat...

Journal: :Journal of animal science 2008
L E Curtis R L Kallenbach C A Roberts

In a 2-yr study, we evaluated the effect of different forage allocations on the performance of lactating beef cows and their calves grazing stockpiled tall fescue. Allocations of stockpiled tall fescue at 2.25, 3.00, 3.75, and 4.50% of cow-calf pair BW/d were set as experimental treatments. Conventional hay-feeding was also evaluated as a comparison to grazing stockpiled tall fescue. The experi...

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