نتایج جستجو برای: summer maize
تعداد نتایج: 89919 فیلتر نتایج به سال:
Increasing the planting density of summer maize to improve utilization efficiency limited soil and water resources is an effective approach; however, how leaf water-use (WUEL), yield, RUE respond genotypes remains unclear. A 2-year field experiment was performed in North China Plain (NCP) investigate effects (high, 100,000 plants ha?1; medium, 78,000 low, 56,000 ha?1) (Zhengdan 958 Denghai 605)...
Surveys were conducted during 2020 and 2021 to study the emerging lepidopteran pests inflicting cereals in Tunisia, with specific emphasis on maize sorghum crops. A species was collected from traps placed Jendouba, Bizerte, Nabeul Gabes regions. Thus, this carried out first report its identification, distribution, population density damage. Results showed that M. loreyi abundant all prospected ...
to compare the quantity and quality of forge production in intercropping systems with maize, pinto bean and pumpkin, an experiment based on randomized complete block design with three replications was conducted at faculty of agricultural science, university of guilan, during 2012 growing season. the treatments consisted of maize, pinto bean and naked pumpkin sole cropping, maize – pinto bean an...
We analyze the decision to participate and performance at the Modern Olympic Summer Games at the country level. We use an unbalanced panel of 118 countries over all 24 editions of the Summer Games since 1896. The main focus of the paper is on economic, geographic and demographic determinants of Olympic participation and success. We estimate the impact of income per capita, population size, home...
Several studies have concluded that mountainous countries such as Nepal are more vulnerable to climate change; thus, a changing climate should have a significant impact on crop yields. This work aims to explore the impact of climate change on major crop yields in the mountainous parts of Nepal and to determine their relationships based on a regression model between historical climatic data and ...
Soybean is one of the main sources of foreign exchange credits for Brazil in the agricultural sector. There is increasing interest in growing this leguminous crop, especially in the southern region of Minas Gerais, due to its importance as an alternative for crop rotation with maize. In this respect, the study of the adaptability of new cultivars to the region is indispensable so as to obtain h...
The main objective of this work was anaerobic digestion of maize grains and maize silage and biogas production from these crops. Maize grains were treated using one-stage and two-stage anaerobic techniques; using hydrolysis and acidification as the first stage and methanogenesis as the second stage. Processing nonacidified maize grains in an anaerobic reactor is more stable, though the anaerobi...
Studies of the influence different technologies conventional chernozem cultivation on reserves productive moisture for maize over grain and winter wheat in Steppe zone Ukraine were carried out. The parameters technology growing field crops using “no-till” soil treatment relation to shelf ploughing determined. It was established that system substantially reduces loss due unproductive evaporation...
Crop area estimation is a key element in crop production forecasting and estimation. Satellite imagery can provide valuable information for stratification purposes and can be used as a source of proxy variables for aposteriori correction of area estimates. In this regard, efficiency of crop area estimation using satellite imagery depends on the accuracy of crop classification. In this paper, we...
This scientific opinion reports on an evaluation of a risk assessment for placing on the market the genetically modified insect resistant and herbicide tolerant maize Bt11xGA21 for food and feed uses, import and processing. Conventional breeding methods were used in the production of maize Bt11xGA21 from inbred lines of the respective parental events. The structural integrity of the inserts in ...
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