Scientific Research Publishing

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=54083#.VO1wYizQrzE Author(s)   Kris J. Mahoney 1* , Jonathan H. Klapwyk 2 , Greg A. Stewart 3 , Greg A. Stewart 3 , W. Scott Jay 1 , David C. Hooker 1   Affiliation(s) 1 University of Guelph, Ridgetown Campus, Ridgetown, Canada . 2 Klapwyk Farms, Elora, Canada . 3 Ontario Ministry of Agriculture, Food and Rural Affairs, Guelph, Canada . ABSTRACT Growers in northern corn (Zea mays L.) producing regions forgo the typical autumn harvest for various reasons, but not without the risk of significant yield loss. Therefore, strategies are needed for managing the risks to harvestable yield when harvesting corn in spring. Field experiments, with various management strategies, were initiated in Ontario, Canada near Belmont and Ridgetown in 2009 and near Belmont, Ridgetown, and Lucan in 2010. Management strategies investigated the use of hybrids with a range i...

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53820#.VNR6ICzQrzE Author(s)  Md. Abul Kashem * , Ashoka Sarker , Imam Hossain , Md. Shoffikul Islam Affiliation(s) Department of Soil Science, University of Chittagong, Chittagong, Bangladesh . ABSTRACT <span "="">This study attempted to compare the effect of cow manure vermicompost and inorganic fertilizers on the vegetative growth and fruits of tomato plant ( Solanum lycopersicum L.). An air dried sandy loam soil was mixed with five rates of vermicompost equivalent to 0 (control), 5, 10, 15 and 20 t ha -1 and three rates of NPK fertilizer equivalent to 50% (N-P-K = 69-16-35 kg ha -1 ), 100% (N-P-K = 137-32-70 kg ha -1 ) and 200% (N-P-K = 274-64-140 kg ha -1 ). The treatments were replicated three times. The data revealed that shoot length, number of leaves, dry matter weight of shoots and roots, fruit number and fruit weight were influenced significa...

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53245#.VLh5NMnQrzE Author(s) Rashid Waseem Khan Qadri 1 , Imran Khan 2* , Muhammad Muzammil Jahangir 1 , Umair Ashraf 3 , Ghufrana Samin 4 , Ammara Anwer 1 , Muhammad Adnan 1 , Mohsin Bashir 1   Affiliation(s) 1 Institute of Horticultural Sciences, University of Agriculture, Faisalabad, Pakistan . 2 Department of Agronomy, University of Agriculture, Faisalabad, Pakistan . 3 Department of Crop Science and Technology, College of Agriculture, South China Agricultural University, Guangzhou, China . 4 University of Engineering and Technology (Lahore) Faisalabad Campus, Faisalabad, Pakistan . ABSTRACT Growth, yield and quality of potato are greatly affected by its nutritional management. Foliar application of urea reduces nitrogen losses and increases plant nitrogen use efficiency. This study was therefore planned to evaluate the effect of soil applied phosphorus (DA...

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=52420#.VJdtZcCAM4 Author(s) Heng Zhong 1* , Qiao Wang 1 , Xinhua Zhao 1 , Qi Du 1 , Yue Zhao 1 , Xiaoguang Wang 1 , Chunji Jiang 1 , Shuli Zhao 1 , Minjian Cao 1 , Haiqiu Yu 1 , Dawei Wang 2 Affiliation(s) 1 College of Agronomy, Shenyang Agricultural University, Shenyang, China . 2 Corn Research Institute, Liaoning Academy of Agriculture Science, Shenyang, China . ABSTRACT Application of nitrogen (N) fertilizer is one of the most important approaches on improving maize grain yield. However, as is known to all, overuse N fertilizer not only leads to decline of N use efficiency and maize yield, but also leads to potential risk ...