scholarly journals Effects of plant density and nitrogen rate on lodging-related stalk traits of summer maize  

2016 ◽  
Vol 62 (No. 7) ◽  
pp. 299-306 ◽  
Author(s):  
Shi DY ◽  
Li YH ◽  
Zhang JW ◽  
P. Liu ◽  
B. Zhao ◽  
...  
Keyword(s):  
Plant Density ◽  
Summer Maize ◽  
Nitrogen Rate

scholarly journals Maize Nutrient Accumulation and Partitioning in Response to Plant Density and Nitrogen Rate: I. Macronutrients

2013 ◽  
Vol 105 (3) ◽  
pp. 783-795 ◽  
Author(s):  
Ignacio A. Ciampitti ◽  
Jim J. Camberato ◽  
Scott T. Murrell ◽  
Tony J. Vyn
Keyword(s):  
Plant Density ◽  
Nutrient Accumulation ◽  
Nitrogen Rate

scholarly journals Response of grain yield to plant density and nitrogen rate in spring maize hybrids released from 1970 to 2010 in Northeast China

2016 ◽  
Vol 4 (6) ◽  
pp. 459-467 ◽  
Author(s):  
Chunrong Qian ◽  
Yang Yu ◽  
Xiujie Gong ◽  
Yubo Jiang ◽  
Yang Zhao ◽  
...  
Keyword(s):  
Grain Yield ◽  
Northeast China ◽  
Plant Density ◽  
Nitrogen Rate ◽  
Maize Hybrids ◽  
Spring Maize

scholarly journals Effect of Plant Density on Microstructure of Stalk Vascular Bundle of Summer Maize (Zea maysL.) and Its Characteristics of Sap Flow

2014 ◽  
Vol 40 (8) ◽  
pp. 1435 ◽  
Author(s):  
Hai-Juan FENG ◽  
Shan-Ping ZHANG ◽  
Cun-Jin MA ◽  
Peng LIU ◽  
Shu-Ting DONG ◽  
...  
Keyword(s):  
Vascular Bundle ◽  
Sap Flow ◽  
Plant Density ◽  
Summer Maize

scholarly journals Crop production kept stable and sustainable with the decrease of nitrogen rate in North China Plain: An economic and environmental assessment over 8 years

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Zheng Liu ◽  
Ningning Yu ◽  
James J. Camberato ◽  
Jia Gao ◽  
Peng Liu ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Greenhouse Gas ◽  
Crop Production ◽  
North China Plain ◽  
North China ◽  
Greenhouse Gas Emission ◽  
Soil Productivity ◽  
Summer Maize ◽  
Nitrogen Rate

AbstractIn pursuit of maximum grain yield farmers in the North China Plain usually apply excessive N fertilizer, resulting in wasted resources and environmental pollution. To assess the economic and environmental performances of different nitrogen rates will be conductive to sustain cleaner crop production. An 8-year field experiment was carried out with four treatments, N0 (0 kg ha−1 for winter wheat and summer maize), N1 (168 kg ha−1 for winter wheat and 129 kg ha−1 for summer maize), N2 (240 kg ha−1 for winter wheat and 185 kg ha−1 for summer maize) and N3 (300 kg ha−1 for winter wheat and summer maize), on the double cropping at Dawenkou research field (36°11’N, 117°06’E), Shandong Province, China. The crop production, soil physical-chemical parameters, and greenhouse gas emission are measured and the economic and environmental performances are assessed. The optimal nitrogen rate obtained the highest grain yield of summer maize in 4 of 8 year and was equivalent to conventional N rate in the other years. The nitrogen partial factor productivity and agronomic efficiency of optimal nitrogen rate was 63% and 58% higher than that of conventional nitrogen rate. The optimal nitrogen rate effectively decreased soil bulk density and increased weight percentage of water-stable aggregate and activities of urease and invertase compared to conventional nitrogen rate, which improved soil productivity. The fertilizer nitrogen loss and global warming potential of optimal nitrogen rate reduced by 76% and 35% compared to conventional nitrogen rate. The annual greenhouse gas intensity of optimal nitrogen rate decreased by 14–35% compared to others. The net ecosystem economic budget under optimal nitrogen rate is 252–604 $ ha−1 yr.−1 higher than other addition levels. The optimal nitrogen rate produces more grains and obtains higher economic and environmental benefits.

Effects of Plant Density on Stem Traits and Lodging Resistance of Summer Maize Hybrids with Different Plant Heights

2016 ◽  
Vol 42 (12) ◽  
pp. 1864
Author(s):  
Bai-Zhao REN ◽  
Li-Li LI ◽  
Shu-Ting DONG ◽  
Peng LIU ◽  
Bin ZHAO ◽  
...  
Keyword(s):  
Plant Density ◽  
Summer Maize ◽  
Lodging Resistance ◽  
Maize Hybrids

Effects of Plant Density on Anatomical Structure of Ear Leaf in Summer Maize

2012 ◽  
Vol 37 (11) ◽  
pp. 2099-2105
Author(s):  
Chun-Qi LI ◽  
Ting-Liang WANG ◽  
Xiang-Wen CHENG ◽  
Ruo-Yao CAO ◽  
Yun LI ◽  
...  
Keyword(s):  
Plant Density ◽  
Anatomical Structure ◽  
Summer Maize
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