ISSN:
1573-5036
Keywords:
CaCO3
;
Oryza sativa
;
Submerged paddy
;
Zinc sources
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Abstract The effects of CaCO3, Zn sources and levels on the yield of submerged paddy and uptake of Zn, P and N to paddy were studied in green-house at Haryana Agricultural University, Hissar. Powdered CaCO3 was mixed at 0,4 and 8 per cent and Zn was added at 0,5 and 10 ppm through ZnSO4.7H2O, ZnO and Zn EDTA separately. Dry weight at tillering and heading and grain and straw at maturity decreased significantly with 4 and 8 per cent CaCO3 in comparison to the control. Increasing Zn application increased the dry weight and grain yield. Zn EDTA gave highest yield of paddy followed by ZnSO4.7H2O and ZnO. Increasing the application of CaCO3 from 0–8 per cent decreased the concentration and uptake of Zn and increasing Zn application from 0–10 ppm increased concentration and uptake of Zn in paddy at tillering, heading and maturity. Zn EDTA gave the highest concentration and uptake of Zn followed by ZnSO4.7H2O and ZnO. There was interaction between Zn sources and CaCO3. The concentration and uptake of N and P in paddy dry matter at tillering and heading and straw and grain at maturity decreased as compared to control with increasing CaCO3 addition. The concentration and uptake of N increased and that of P decreased in paddy dry matter straw and grain with increasing Zn application. The highest concentration of N was observed with ZnO, followed by ZnSO4.7H2O and Zn EDTA. But highest uptake of N was observed with Zn EDTA followed by ZnSO4.7H2O and ZnO. As regards concentration and uptake of P, it was highest with ZnO followed by ZnSO4.7H2O and Zn EDTA.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02197955
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