Mechanism of nitrogen effect on zinc nutrition of flooded rice

Chaudhry, F. M.; Kausar, Muhammad; Rashid, Abdul; Rahmatullah,

doi:10.1007/bf00015925

Cited by 6 publications

(3 citation statements)

References 10 publications

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“…Non-judicious use of nitrogen fertilizer could further aggravate Zn deficiency in alkaline soils and suppress paddy growth and yield (Rashid, 1996). Nitrogen fertilization is found to enhance zinc contents of flooded rice, where urea performed better than NH4NO3 in increasing Zn contents (Chaudhry et al, 1977;Singh and Singh, 1981). They observed that higher Zn contents in plant tissues by nitrogen application were due to better growth, increased Zn solubility and increased root efficiency for Zn uptake.…”

Section: Paddy Yield Componentsmentioning

confidence: 99%

Nitrogen and Zinc Interaction Improves Yield and Quality of Submerged Basmati Rice (<i>Oryza sativa</i> L.)

Ali

Hasnain

Sarwar

et al. 2014

Not Bot Hort Agrobot Cluj

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Nitrogen (N) and zinc (Zn) are the two major yield-limiting factors of flooded rice cultivation systems. Both nutrients interact and affect availability of the other in alkaline calcareous soils. In order to evaluate the interactive effects of N and Zn on yield and quality of Basmati rice, a field study was conducted at Sheikhupura (Site I) and Sargodha (Site II), Pakistan. Nitrogen treatments (0, 40, 80, 120 and 160 kg/ha) were kept in main blocks while zinc levels (0, 8, 10, 12 and 14 kg/ha) were kept in sub blocks. The main effects of N and Zn levels were significant for grain yield and yield attributes. N and Zn interaction significantly improved the grain yield, yield components and all kernel quality parameters, except kernel amylose contents. Combined application of 120 kg N/ha and 14 kg Zn/ha produced the maximum grain yields at both sites (6.12 and 5.78 t/ha). This combination also yielded the maximum kernel lengths and widths, water absorption ratio and kernel protein contents. There was a significant positive correlation between grain yield and total dry matter, panicle-bearing tillers, spikelets panicle, grain weight, and harvest index. Application of 160 kg N/ha was detrimental to yield and quality attributes and reduced the agronomic efficiency of N use at both sites. Site comparison showed that soil pH and soil nutrient contents play a significant role in determination of the optimum nitrogen and zinc fertilizer doses for maximum yields.

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Section: Paddy Yield Componentsmentioning

confidence: 99%

Nitrogen and Zinc Interaction Improves Yield and Quality of Submerged Basmati Rice (<i>Oryza sativa</i> L.)

Ali

Hasnain

Sarwar

et al. 2014

Not Bot Hort Agrobot Cluj

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“…The mean TF S-P concentration increased with N application rates in the following order: N30 (0.31) < N60 (0.34) ≈ N90 (0.35). Chaudhry et al (1977) and Singh and Singh (1981) observed higher Zn contents in plant tissues as a result of applying more N in response to an increase in Zn solubility. In contrast, the mean TF S-P concentration increased in the following order: ZnCHE-0 (0.24) < ZnCHE-0.5 (0.31) < ZnCHE-1 (0.38) < ZnCHE-1.5 (0.41).…”

Section: Soil Status and Nutrient Availability To The Plantmentioning

confidence: 96%

Zn-DTPA-HEDTA-EDTA Application: a Strategy to Improve the Yield and Plant Quality of a Barley Crop While Reducing the N Application Rate

Almendros

Obrador

Álvarez

et al. 2019

J Soil Sci Plant Nutr

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Over-use of N fertilization has been common in order to obtain the highest possible grain yield. We investigated the efficiency of combining the application of N and ZnCHE (Zn-DTPA-HEDTA-EDTA). Different rates (30, 60, or 90 kg ha −1) and sources [pig slurry(PS) or urea] of N and rates of ZnCHE (0, 0.5, 1, or 1.5 kg ha −1) were applied to a barley crop. Nitrogen fertilization combined with soil Zn applications had a significant interaction on various plant parameters (grain protein concentration, yield, Zn uptake, and N uptake). An application rate of 90 kg N ha −1 seems recommendable to obtain high values for both crop yield and N uptake by the plant. PS application was associated with higher mean grain yield and Zn utilization than urea application, but with lower grain protein concentration. On the other hand, the lowest Zn application rate was sufficient to achieve a high grain yield (> 3200 kg ha −1). Higher Zn rates provided great Zn concentrations in the different parts of the plant. Furthermore, high grain protein concentrations (> 9.6%) were obtained with combinations of N60 or N90 and ZnCHE-1 or ZnCHE-1.5, both for PS and for urea. The application of this synthetic Zn chelate could be recommended as a strategy for reducing the N application rate but still obtaining high grain yield and nutritional value in barley. These effects may have been due not only to Zn application but also to the influence of chelating agents such as DTPA, HEDTA, and EDTA.

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“…In submerged rice Tanaka and Ishizuka 12 reported less availability of Zn by urea application and more by NH4C1 application. Subramaniam and Mehta 11 noted increase in N uptake by rice due to Zn application, whereas Chaudhary et al 1 found that urea and ammonium sulphate had more effect than ammonium nitrate on the availability of Zn under flooded conditions, and the increase in Zn availability was reported to be 40 per cent. Since most Haryana soils contain powdered form of CaCO3 its specific effect under submerged condition on availability of Zn and performance of N fertilizers on rice yields needed to be worked out.…”

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confidence: 92%

Effect of nitrogen and zinc on the yield of submerged rice and uptake of N and Zn on unlimed and limed soils

Singh

1981

Plant Soil

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SUMMARYThe effect of N and Zn on the yield of submerged rice and uptake of N and Zn was studied on limed and unlimed soils in greenhouse. Nitrogen was applied at the rate of 0, 80 and 160 ppm through urea, ammonium sulphate and ammonium nitrate, Zn at 0 and 10 ppm in limed (4~ CaCO3) and unlimed soils. Liming (4~ CaCO3) decreased dry matter yield of rice at tillering, heading and straw and grain at maturity significantly against unlimed treatments. Ammonium sulphate gave highest yield with all applied doses followed by ammonium nitrate and urea.Zinc at 10 ppm increased dry matter and grain yield significantly over no Zn treatment in rice. The N sources gave N concentration and uptake in rice plants in decreasing order:Ammonium sulphate > Ammonium nitrate > Urea.The highest N concentration was recorded with 160 ppm followed by 80 ppm N through any source and lowest in control. The application of Zn increased and liming decreased N concentration and uptake by rice at all sampling stages. Highest N concentration (2.37 to 3.92Yo) was observed at tillering followed at heading (0.48 to 1.05Yo). At maturity N in grain ranged from 0.69 to 1.13Yo whereas in straw from 0.24 to 0.41~. There were positive significant interactions of N(S) • N(L), N(S) and N(L) x Zn and negative interaction with lim~ on yield, N concentration (~o) and N uptake (mg/pot).The application of N sources and levels and Zn increased Zn uptake (~tg/pot), and liming decreased it. But 160 ppm N through any source decreased straw Zn concentration over 80 ppm N in absence of added Zn, however, effects on grain were not so strong particularly that of 160 ppm, when 10 ppm Zn was also added even 160 ppm N increased Zn concentration over 80 ppm significantly in both straw and grain. In this case the effect of N sources on Zn concentration was in the order:Ammonium sulphate > Urea > Ammonium nitrate.

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Mechanism of nitrogen effect on zinc nutrition of flooded rice

Cited by 6 publications

References 10 publications

Nitrogen and Zinc Interaction Improves Yield and Quality of Submerged Basmati Rice (<i>Oryza sativa</i> L.)

Nitrogen and Zinc Interaction Improves Yield and Quality of Submerged Basmati Rice (<i>Oryza sativa</i> L.)

Zn-DTPA-HEDTA-EDTA Application: a Strategy to Improve the Yield and Plant Quality of a Barley Crop While Reducing the N Application Rate

Effect of nitrogen and zinc on the yield of submerged rice and uptake of N and Zn on unlimed and limed soils

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