Study Of Nitrogen Of Amospheric Wet Deposition And Maize Zoology Benefit

The program of nitrogen concentration in rain and ecological benefit in maize was with pot culture for people pay more and more attention to global warming. The result was as followed:A. Nitrogen concentration in raina. NH4+-N deposition was important in agro-ecosystem, and NO3--N deposition was important in urban ecosystem. Nitrogen concentration in rain was larger in urban ecosystem than that in agro ecosystem.b. Nitrogen concentration in rain was changed in season. It in summer was larger than it in winter. NH4+-N concentration was the same law.c. NH4+-N and NO3--N concentration in rain was decreasing with increasing amount of rainfall, NH4+-N concentration in rain in a month was increasing with in creasing amount and times of rain.B. Ecological benefit in maizeThe amount of biomass, plant height and total nitrogen concentration in maize were affected by genotype of inbred line, and the different results from genotypes of inbred line with the different treatments. The amount of biomass in G39 was the highest in other in bred line. And the nitrogen in ran produced distinct improvement in G39. Applying nitrogen was beneficial for accumulation of nitrogen concentration in the soil. The nitrogen concentration in the soil had significantly increased in 2005.The nitrogen concentration of G39 in the soil was higher than that of other inbred lines when G39 was treated by rainwater, nature, and it also improves nitrogen accumulation in soil, so it has significant ecological benefits. The nitrogen concentration of plant had different appearance for the different genotype of plant. Nitrogen concentration of grain was affected by both genotype and treatment on it. Nitrogen concentration of Mo17 in grain was higher than that of Zheng58.