Potassium Characteristics Of High Yield Maize In Different Soils In Jilin Province

This test in 2014 in Jilin Province alluvial land area Huadian City Jinsha villagers Long Cun, 2014 in black calcium soil region in Jilin Province, gan’an County, Songyuan City in praise words Fu Zi Cun County, 2015 in typical black soil area of Jilin Province Lishu County Si Ke Shu County, China Agricultural University Experiment Station research and test field are continuous cropping of corn high yield field, aims to find out different soil of Jilin Province, potassium application methods, Jilin province corn yield to provide theoretical support for.The study showed that the yield of maize was significantly influenced by different potassium application methods in different regions of Jilin province.The yield of super high yield was 11077.6-15535.6 kg/hm2, and the yield of maize could be improved by adjusting the number of grains, grains per ear and 1000 grain weight of 3.9%-37%, which can increase the yield of, compared with the low potassium treatment.Alluvial land area of High-yielding Maize fertilizer optimum application way in Jilin Province: N 300 kg / hm2, P2O5 140 kg / hm2, K2 O 140 kg / hm2, of which the total nitrogen fertilizer application amount of 30% as a fertilizer, 40% as top dressing at jointing stage, 30% as the pump dressing at silking stage; phosphate fertilizer as basal Shi. The total amount of potash fertilizer 75%, 25% large bell stage dressing. The application mode can obtain high yield level 15535.6 kg / hm2, yield than conventional fertilization increased 31.9% above; Black calcium soil area, high yield of maize and potassium optimum application in Jilin Province: N 300 kg / hm2, P2O5 140 kg / hm2 and K2 O 140 kg / hm2, the nitrogen total application dosage of 30% as base fertilizer, 40% as top dressing at jointing stage, 30% as the pump dressing at silking stage; phosphate fertilizer as basal. The total amount of potash fertilizer 50%, 50% large bell stage dressing. The application mode can obtain high yield level 13294.9 kg / hm2, yield than conventional fertilization increased more than 19.0 percent; in typical black soil area of maize yield and potassium optimum application in Jilin Province: N 300 kg / hm2, P2O5 140 kg / hm2 and K2 O 140 kg / hm2, the nitrogen total application dosage of 30% as base fertilizer, 40% as top dressing at jointing stage, 30% as the pump dressing at silking stage; phosphate fertilizer as basal. The total amount of potash fertilizer 75%, 25% large bell stage dressing. The above application technology model can get more than 11244.6 kg/hm2 high yield level, the yield than conventional fertilization increased by more than 13.8%.