| dc.creator | Lu,Caiyan | |
| dc.creator | Ma,Jian | |
| dc.creator | Chen,Xin | |
| dc.creator | Zhang,Xudong | |
| dc.creator | Shi,Yi | |
| dc.creator | Huang,Bin | |
| dc.date | 2010-01-01 | |
| dc.date.accessioned | 2019-04-25T12:39:41Z | |
| dc.date.available | 2019-04-25T12:39:41Z | |
| dc.identifier | https://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0718-95162010000200005 | |
| dc.identifier.uri | http://revistaschilenas.uchile.cl/handle/2250/60930 | |
| dc.description | A pot experiment was conducted to evaluate the effect of nitrogen (N) fertilizer and maize straw incorporation on the accumulation of NH4+-15N and N0(3)--15N in soil inorganic N pool among three consecutive cropping cycles, aimed to search for an effective N management practice to decrease superfluous accumulation of soil inorganic N and fertilizer N losses. The results showed that the amounts of soil NH4+-15N, N0(3)-15N and inorganic 15N, and their percent to applied 15N-labeled fertilizer declined significantly with sampling time (p ≤ 0.001).Compared to low N application rate (44.64 mg N kg-1 soil), high N application rate (89.28 mg N kg-1 soil) enhanced significantly the amounts of soil NH4+-15N, N0(3)--15N and inorganic 15N by 238.6%, 132.9% and 197.3%, respectively (p ≤ 0.001). In contrast, maize straw addition declined significantly the amounts of soil NH4+-15N and inorganic 15N by 21.4% and 16.1% compared to without maize straw (p ≤ 0.001). The results suggested that a combined application of chemical fertilizer and maize straw with a wide C/N ratio is an important means for reducing the superfluous accumulation of fertilizer N as soil inorganic N to subsequently lower its loss. | |
| dc.format | text/html | |
| dc.language | en | |
| dc.publisher | Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo | |
| dc.relation | 10.4067/S0718-95162010000200005 | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.source | Journal of soil science and plant nutrition v.10 n.4 2010 | |
| dc.subject | N fertilizer | |
| dc.subject | maize straw | |
| dc.subject | NH4+-15N | |
| dc.subject | N0(3)--15N accumulation | |
| dc.subject | Black soil | |
| dc.title | EFFECT OF NITROGEN FERTILIZER AND MAIZE STRAW INCORPORATION ON NH4+15N AND N0(3) -15N ACCUMULATION IN BLACK SOIL OF NORTHEAST CHINA AMONG THREE CONSECUTIVE CROPPING CYCLES | |
