نتایج جستجو برای: quality and quantity yield
تعداد نتایج: 16935120 فیلتر نتایج به سال:
background and objectives: sugar beet seed plants about five to six weeks after the formation of a seed stem, flowering started and within two weeks, this stage of plant growth will be completed. a significant negative correlation between the temperature received from flowering to seed maturity and the plant reproductive growth period with grain yield shows that the long plant reproductive grow...
abstract in order to optimize the water management in agriculture in semi arid and arid conditions water-salinity function should be evaluated. in order to evaluate salinity and deficit irrigation two experiments were conducted in 2008 and 2009. kochia was grown with six levels of saline water (1.5, 7, 14, 21, 28, and 35 ds/m) and three levels of applied water (25, 75, and 125 percent of the wa...
abstract for evaluating nacl salinity effect on some physiological and qualitative attributes of five winter canola cultivars, an experiment was conducted in a rcd base factorial in three replicates in greenhouse of east azarbaijan agricultural research center in 2008. five salinity levels as 0, 50, 100, 150 and 200 mm nacl treated as first factor on five rape seed (fornax, licord, elite, slm04...
water is the most important factor for agriculture development in iran. accordingly the optimal consumptione of water is very important. using pressurized irrigation system is one of the methods to improve agricultural water management. the objecttives of this research were to compare two irrigation methods of furrow and trickle irrigation systems impacts on quantity and quality characters of s...
The lack of a comprehensive index to measure the changes in human capital in various dimensions of the quantity and quality of education in the country has caused educational planners and policy makers to face a lack of information for planning the country's education. This research was inspired by the model of making composite indicators published by the Organization for Economic Cooperation ...
Nowadays in the world, soilless culture as a kind of technique is known to give vegetable crops higher yield and quality. This experiment was conducted at research greenhouse of Agriculture and Natural Research Center of Golestan province in spring 2005. The purpose of this research was to investigate the effects of irrigation frequency and substrates on yield and fruit quality of greenhouse to...
As the population increases, more people need to be fed. In order find a physical method that influence corn production, this work is dedicated evaluating impact of pre-sowing red laser irradiation (Zea mays L.) seeds on harvest yield. The aim was analyze radiation seeds, quantity and quality yield, large-scale open field production. It hypothesized at least one treatment could improve crop rad...
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