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Please wait a minute... For Selected: Download Citations EndNote Ris BibTeX Toggle Thumbnails Select Journal of Henan Agricultural Sciences    2019, 48 (8): 18-26.   Abstract （1198）      PDF （915KB）（379）       Knowledge map    Save Reference | Related Articles | Metrics Select Effect of Nitrogen and Zinc Application on Contents and Distribution of Nitrogen and Zinc in Wheat Grain SHAO Yunhui, ZHANG Panpan, MA Geng, LU Hongfang, WANG Lifang, WANG Chenyang, LI Xiangdong, YUE Junqin, QIN Feng Journal of Henan Agricultural Sciences    2021, 50 (1): 35-43.   DOI: 10.15933/j.cnki.1004-3268.2021.01.005 Abstract （1018）      PDF （2236KB）（308）       Knowledge map    Save The field experiment was conducted with a split plot design. Grain was pilled into testa,aleurone layer,subaltern aleurone layer,three transition layers of endosperm and central layer of starch endosperm from out to inner (F1—F7). Main plot treatments were two Zn rates,0,9.60 kg/ha,sub-plot treatments were two N rates,0,240 kg/ha,and the effect of N and Zn application on the contents and distribution of N and Zn in the grain fractions was studied,so as to provide reference for improving zinc content in wheat grain endosperm and optimal management of nitrogen and zinc fertilizer.The results indicated that distribution of N and Zn was nonuniform in the wheat grain.The N content was higher in the F2 and F3 fractions,and the content of Zn decreased in the grain from out to inner.The distribution of N and Zn was the highest in the F7 fraction,which were 40.40% and 26.20%,respectively,and the lowest in F1 and F6 fractions.The grain yield,N contents in the grain,Zn accumulation and distribution in grain’s fractions of the treatment with Zn were not significantly different from the treatment without Zn.Zn application significantly increased grain Zn content by 49.3%,maximum increase amplitude was in the F5 fraction, and Zn accumulation in each fraction increased by 50.1%—63.6%, maximum increase amplitude was in the F7.The Zn distribution in the grain fractions was not obviously affected by Zn application. N application significantly increased the grain yield,N content in grain and its fractions,N accumulation in the grain fractions, maximum increase amplitude was in the F3 fraction, and the distribution of N obviously increased in F3 fraction, but decreased in F1 and F7 fractions under N application treatment.N application significantly increased Zn contents in grain and its fractions,the Zn content in F7 fraction increased by 24.9%,the Zn distribution proportion in F7 fraction increased by 14.3%,but the Zn distribution proportions in other fractions decreased (expect F2 fraction).Correlation analysis was significant between Zn content in the F7 and N contents in the grain,F1 and F3 fractions.Relationship was also significant between Zn content in the F7 fraction and N content in the F1 fraction.Therefore, N and Zn application can significantly improve Zn content in grain, accumulation and distribution in the inner of wheat grain,and is a reasonable and efficiency way to increase the Zn nutrition quality in the endosperm of wheat grain. Related Articles | Metrics Select Effect of Nitrogen and Zinc Combined Application on Absorption and Transport of Nitrogen and Zinc in Summer Maize Grain at Filling Stage ZHANG Panpan, QIAO Jiangfang, LI Chuan, ZHANG Meiwei, MU Weilin, GUO Hanxiao, CEN Junjuan Journal of Henan Agricultural Sciences    2024, 53 (3): 17-32.   DOI: 10.15933/j.cnki.1004-3268.2024.03.002 Abstract （947）      PDF （1601KB）（104）       Knowledge map    Save Field experiment was conducted with three nitrogen（N）rates（225，180 and 90 kg/ha，named as HN，MN and LN，respectively）and four foliar spray stages of zinc（Zn）（no Zn，spraying Zn of 4.5 kg/ha according to 1∶1 at seedling stage and jointing stage，spraying Zn of 4.5 kg/ha according to 1∶1 at jointing stage and flare opening stage，and spraying Zn of 4.5 kg/ha at flare opening stage，named as Zn0，Zn1，Zn2 and Zn3，respectively）.The effect of N and Zn combined application on the absorption and transport of N and Zn in the grain of summer maize was studied at filling stage with ZD958 and GSY66 as materials，so as to provide the basis for fertilization of N and Zn in the production.The result showed that the N and Zn concentrations in grain generally decreased with the growth of plant.At mature stage，GSY66 of MNZn2 treatment had the highest N concentration in grain with 14.64 g/kg，while ZD958 of MNZn2 treatment had the highest N accumulation. GSY66 of MNZn3 treatment had higher Zn concentration and accumulation in grain.MN treatment had the highest N absorption and its contribution rate after anthesis with 50.42 kg/ha and 44.20% respectively，and the highest Zn transport amount with 61.68 g/ha；Zn2 treatment had the highest N absorption and its contribution rate after anthesis with 54.56 kg/ha and 44.31% respectively，and the highest contribution rate of Zn transport amount with 17.26%；under the above two treatments，the grain number per ear，1 000‐grain weight and yield were higher. There was significantly or extremely significantly negative correlation between N transport amount and absorption after anthesis of N and Zn.There was significantly or extremely significantly positive correlation between Zn absorption after anthesis and the concentrations of N and Zn in grain and N absorption after anthesis.To sum up，N application rate of 180 kg/ha and spraying Zn of 4.5 kg/ha according to 1∶1 at jointing stage and flare opening stage can promote the absorption and transport of N and Zn at filling stage，increase the concentrations of N and Zn in grain，maintain the high yield，and realize synchronously increase of grain yield and Zn nutrition in the summer maize production. Reference | Related Articles | Metrics Select Effect of Nitrogen and Zinc Application on Accumulation and Distribution of Mineral Elements in Plant of Maize Varieties with Different Zinc Efficiency ZHANG Panpan, QIAO Jiangfang, LI Chuan, ZHANG Meiwei, MU Weilin, GUO Hanxiao, ZHOU Yanli, CHENG Zeqiang Journal of Henan Agricultural Sciences    2024, 53 (6): 1-10.   DOI: 10.15933/j.cnki.1004-3268.2024.06.001 Abstract （985）      PDF （2797KB）（142）       Knowledge map    Save With Zhengdan 958(ZD958)with high zinc(Zn)efficiency and Longping 638(LP638)with Zn insensitivity as materials,the field plot experiment was conducted with three nitrogen(N)rates[90 kg/ha(LN),180 kg/ha(MN)and 225 kg/ha(HN)]and two foliar Zn treatments[no Zn(F0),spraying Zn of 1∶1 at jointing stage and flare opening stage(F1)]to analyze the effects of N and Zn application on content,accumulation and distribution of mineral elements in plant and grain yield of maize,so as to provide reference for N and Zn application in the maize production.The results showed that the highest copper(Cu)and Zn content in grain was found under MN treatment,with 1.82 mg/kg and 16.23 mg/kg,respectively.F1 treatment could increase the contents of N and Zn and Zn availability.The accumulation of N,phosphorus(P)and potassium(K)in plant was the highest in LP638 under MNF1 treatment;The highest accumulation of Cu and Zn was found in ZD958 under LNF1 treatment,while the highest accumulation of manganese(Mn)and iron(Fe)under HNF1 treatment.The highest proportion of N,P and Cu in grain was obtained in LP638 under HNF1 treatment;The higher proportion of Zn was found in ZD958 under HNF0 and LNF0 treatments.HN treatment had the highest grain yield with an average of 10.31 t/ha,followed by MN treatment,and LN treatment was the lowest.There was significantly positive correlation between P content and Mn content in grain of two varieties;K content was significantly positively correlated with Fe content and Zn content,but significantly negatively correlated with Cu content in LP638.To sum up,180 kg/ha N and spraying Zn of 1∶1 at jointing stage and flare opening stage can increase Zn availability and accumulation of mineral elements in maize grain，promote the synchronous improvement of yield and mineral nutrition,and can be promoted in maize field production. Reference | Related Articles | Metrics Select Effect of Nitrogen and Zinc Application on Filling Characteristics of Grains at Different Positions of Maize Ear ZHANG Panpan, LI Chuan, ZHANG Meiwei, YU Xiaohong, MU Weilin, GUO Hanxiao, QIAO Jiangfang, ZHANG Guitang Journal of Henan Agricultural Sciences    2024, 53 (9): 16-27.   DOI: 10.15933/j.cnki.1004-3268.2024.09.002 Abstract （1250）      PDF （1837KB）（62）       Knowledge map    Save The high Zn efficiency variety Zhengdan 958(ZD958)and Zn no‑sensitive variety Longping 638(LP638)were used as materials.The field plot experiment was conducted with three N rates[225 kg/ha(HN),180 kg/ha(MN)and 90 kg/ha(LN)]and two foliar Zn treatments［no Zn(F0),spraying Zn of 1∶1 at jointing stage and flare opening stage(F1)],and the effects of N and Zn application on the filling characteristics of grains at different positions and their relationship with grain yield of different Zn efficiency varieties were studied,so as to provide reference for N and Zn application in the maize production.The results showed that HN treatment had the highest yield,followed by MN treatment,and there was no significant difference between HN treatment and MN treatment.HN treatment increased grain weight at different positions.MN treatment delayed the time with the maximum grain‑filling rate(TGmax)at different positions,and increased the maximum grain‑filling rate(Gmax)at upper position and active grain‑filling period(D)at basal position of ZD958 ear,while HN treatment delayed TGmax,prolonged D of different positions,and enhanced the grain weight with the maximum grain‑filling rate(WGmax)at upper and basal positions of LP638 ear,thus increasing grain yield.Compared with F0 treatment,F1 treatment significantly decreased the bare tip length by 9.9%,significantly increased the yield by 2.0%,increased the grain weight,extended D and postponed TGmax at upper and basal positions of ZD958 ear,and increased WGmax.The grain yield was significantly positively correlated with TGmax at basal position of ear,and the grain weight at middle position of ear was extremely significantly positively correlated with the grain weight at basal position of ear.To sum up,applying 180 kg/ha N and spraying 4.5 kg/ha Zn of 1∶1 at jointing stage and flare opening stage can delay TGmax at upper and basal positions of ear，extend D,and increase WGmax and grain weight of high Zn efficiency maize genotype,thus promoting the increase of yield. 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