| Cite this article: | 赵堂甫,肖厚军,赵 欢[],等.基肥深施对贵州高产玉米产量及构成要素、养分吸收及利用的影响[J].灌溉排水学报,0,():-. |
| ZHAO Tang-fu,XIAO Hou-jun,ZHAO Huan[],et al.基肥深施对贵州高产玉米产量及构成要素、养分吸收及利用的影响[J].灌溉排水学报,0,():-. |
|
| |
|
|
| This article has been：Browse 1934Times Download 0Times |
|
|
|
| DOI： |
|
| Response of maize yield, biological traits and nutrient utilization and soil fertility to fertilization depth in Guizhou |
|
ZHAO Tang-fu,XIAO Hou-jun,ZHAO Huan[],et al
|
|
1.Institute of soil and Fertilizer,Guizhou Academy of Agricultural Sciences/Scientific Oberving and Experimental Station of Arable Land Conservation and Agricultural EnvironmentGuizhou,Ministry of Agriculture;2.Qianxi County Bureau of Agriculture and Animal Husbandry,Qianxi;3.Institute of Agricultural Environment ＆Resources,Yunnan Academy of Agricultural Sciences,Yunnan Kunming
|
| Abstract: |
| 【Objective】To find out the appropriate depth of the deep application technique of fertilizer used in the application of corn base fertilizer in the yellow soil area of Guizhou.【Methods】Using the test method of Daejeon experiment, a total of 6 treatments, CK, different fertilizer application depths (0cm, 5cm, 10cm, 15cm, 20cm) were applied to corn yield, yield component index, biological traits, nitrogen, The effects of phosphorus and potassium absorption and their apparent utilization rate increase soil fertility. 【Results】The results of field experiment showed that the different application depth of chemical fertilizer significantly affected the yield, yield component and biological traits of maize; the yield of maize increased with the increase of fertilization depth, the increase ranged from 1.07% to 14.20%, and the yield component index was deep. The comprehensive index of 20cm (T5) treatment was higher, and the deep application of 5cm (T2) in the biological traits increased the plant height, stem diameter and ear height by 7.23%, 12.80% and 22.99%, respectively. Increased by 11%-14%, 9%-21% and 1%-6%, the apparent utilization rate of NPK increased by 77.1%-99.2%, 56.7%-130.5% and 52%-113%, respectively. 【Conclusion】The effect of deep application of chemical fertilizer in corn production and planting in Guizhou yellow soil area is significant. The deeper the deep application depth in the depth of 5-20cm, the more obvious the yield increase, while the increase of corn nutrient and its utilization rate is 15cm. Deep application in depth is best. |
| Key words: deep application of chemical fertilizer, corn, yield, biological traits, nutrient utilization |
|
|
|
|
|
|
