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Journal Article

Journal Article

Effect of summer green manuring crops and zinc fertilizer sources on productivity, Zn-uptake and economics of basmati rice  [2016]

Singh, Amarpreet; Shivay, Yashbir Singh;

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Field experiments were conducted for two consecutive years on basmati rice (Oryza sativa L.) during summer and rainy seasons (April–November) of 2009 and 2010 in a sandy clay-loam soil (typic Ustochrept) at the research farm of Indian Agricultural Research Institute, New Delhi. The aim of this study was to determine the influence of zinc fertilizer sources [ethylenediamenetetraacetic acid (EDTA)-chelated zinc (Zn; 12% Zn), zinc sulfate heptahydrate (ZnSO ₄.7H ₂O; 21% Zn), zinc sulfate monohydrate (ZnSO ₄.H ₂O; 33% Zn), zinc oxide (ZnO; 82% Zn), and ZnSO ₄.7H ₂O + ZnO (50% + 50%)] and summer green manuring crops [ Sesbania aculeata , Crotalaria juncea and Vigna unguiculata ] on productivity, Zn-uptake and economics of basmati rice. Among the summer green manuring crops, Sesbania aculeata accumulated highest amount of total dry matter, 5.46 and 5.77 t ha ⁻¹ during 2009 and 2010, respectively. Incorporation of Sesbania aculeata also led to a significant increase in grain, straw and biological yields, Zn content and uptake and economics of succeeding basmati rice. With the incorporation of Sesbania aculeata , grain and straw yields of basmati rice was 4.89, 5.56 and 9.04, 10.21 t ⁻¹ ha during 2009 and 2010, respectively. Among the Zn fertilizer sources, EDTA-chelated Zn (12% Zn) was found to be the best with respect to grain, straw, and biological yields, Zn content and uptake and economics. Application of EDTA-chelated Zn (12% Zn) recorded the highest basmati
rice grain (5.15 and 5.76 t ha ⁻¹) and straw yields (9.30 and 10.48 t ha ⁻¹) compared to control (no Zn application), which produced 4.09 and 4.75 t ha ⁻¹ of grain and 8.13 and 9.39 t ha ⁻¹ of straw yields, respectively, during 2009 and 2010. Highest Zn concentration in grain and straw and its uptake was recorded with Sesbania aculeata incorporation compared with Crotalaria juncea , Vigna unguiculata and summer fallow. Highest total Zn uptake in basmati rice was recorded with EDTA-chelated Zn (12% Zn) application, followed by ZnSO ₄.7H ₂O (21% Zn), ZnSO ₄.H ₂O (33% Zn), ZnSO ₄.7H ₂O + ZnO (50% + 50%), ZnO (82% Zn), and control (no Zn application). Sesbania aculeata incorporation and EDTA-chelated Zn (12% Zn) treatments were found a better combination with respect to basmati rice productivity. The best economical returns were obtained with Sesbania aculeata incorporation and ZnSO ₄.7H ₂O (21% Zn) combination. Thus, adequate Zn fertilization along with green manure crop incorporation can lead to higher productivity of basmati rice.
From the journal
Journal of plant nutrition
ISSN : 1532-4087

Bibliographic information

Language:
English
Type:
Journal Article
In AGRIS since:
2016
Volume:
39
Issue:
2
Start Page:
204
End Page:
218
Publisher:
Taylor & Francis
All titles:
"Effect of summer green manuring crops and zinc fertilizer sources on productivity, Zn-uptake and economics of basmati rice"@eng
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Bibliographic information

Language:
English
Type:
Journal Article
In AGRIS since:
2016
Volume:
39
Issue:
2
Start Page:
204
End Page:
218
Publisher:
Taylor & Francis
All titles:
"Effect of summer green manuring crops and zinc fertilizer sources on productivity, Zn-uptake and economics of basmati rice"@eng