Title :
The excitation of fertilization to compensation effects rewatering after drought at rice tillering stage
Author :
Hao, Shurong ; Guo, Xiangping
Author_Institution :
Key Lab. of Efficient Irrigation-Drainage & Agric. Soil-Water Environ. in Southern China, Hohai Univ., Nanjing, China
Abstract :
A research was carried out to determine the compensation effects of fertilization after water stress on all growth indexes of rice by pot and test-pit experiments. Results show that the fertilization can cause obvious compensation effects and shorten response time of compensation effects on all growth indexes of rice and increase the relatively rates on that of rice. The compensate rates of the growth of rice are faster fertilizing after light drought, but the compensate strength is weaker than doing after heavy drought. The promotion effects is optimal on all growth indexes of rice fertilizing after short-duration heavy drought and long-duration light drought at tillering stage.
Keywords :
agriculture; crops; fertilisers; hydrology; compensate strength; compensation effect; fertilization; growth index; long-duration light drought; pot experiment; promotion effect; rewatering; rice tillering stage; short-duration heavy drought; test-pit experiment; water stress; Fertilizers; Nitrogen; Soil; Stress; Water resources; compensatory effects; fertilization; rewatering; rice; water stress;
Conference_Titel :
New Technology of Agricultural Engineering (ICAE), 2011 International Conference on
Conference_Location :
Zibo
Print_ISBN :
978-1-4244-9574-0
DOI :
10.1109/ICAE.2011.5943853
