دورية أكاديمية
Identification of climate-resilient integrated nutrient management practices for rice-rice cropping system--an empirical approach to uphold food security.
| العنوان: | Identification of climate-resilient integrated nutrient management practices for rice-rice cropping system--an empirical approach to uphold food security. |
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| المؤلفون: | Subash N; Project Directorate for Farming Systems Research, Indian Council of Agricultural Research, Modipuram, Meerut, 250 110, Uttar Pradesh, India, n_suby@rediffmail.com., Gangwar B, Singh R, Sikka AK |
| المصدر: | International journal of biometeorology [Int J Biometeorol] 2015 Jan; Vol. 59 (1), pp. 65-78. Date of Electronic Publication: 2014 May 10. |
| نوع المنشور: | Journal Article; Research Support, Non-U.S. Gov't |
| اللغة: | English |
| بيانات الدورية: | Publisher: Springer Verlag Country of Publication: United States NLM ID: 0374716 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1432-1254 (Electronic) Linking ISSN: 00207128 NLM ISO Abbreviation: Int J Biometeorol Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: New York, NY : Springer Verlag Original Publication: Leiden. |
| مواضيع طبية MeSH: | Agriculture/*methods , Nitrogen/*pharmacology , Oryza/*drug effects , Phosphorus/*pharmacology , Potassium/*pharmacology, Climate ; Fertilizers ; Food Supply ; India ; Oryza/growth & development ; Rain ; Temperature |
| مستخلص: | Yield datasets of long-term experiments on integrated nutrient management in rice-rice cropping systems were used to investigate the relationship of variability in rainfall, temperature, and integrated nutrient management (INM) practices in rice-rice cropping system in three different agroecological regions of India. Twelve treatments with different combinations of inorganic (chemical fertilizer) and organic (farmyard manure, green manure, and paddy straw) were compared with farmer's conventional practice. The intraseasonal variations in rice yields are largely driven by rainfall during kharif rice and by temperature during rabi rice. Half of the standard deviation from the average monthly as well as seasonal rainfall during kharif rice and 1 °C increase or decrease from the average maximum and minimum temperature during rabi rice has been taken as the classification of yield groups. The trends in the date of effective onset of monsoon indicate a 36-day delay during the 30-year period at Rajendranagar, which is statistically significant at 95 % confidence level. The mean annual maximum temperature shows an increasing trend in all the study sites. The length of monsoon also showed a shrinking trend in the rate of 40 days during the 30-year study period at Rajendranagar representing a semiarid region. At Bhubaneshwar, the application of 50 % recommended NPK through chemical fertilizers and 50 % N through green manure resulted in an overall average higher increase of 5.1 % in system productivity under both excess and deficit rainfall years and also during the years having seasonal mean maximum temperature ≥35 °C. However, at Jorhat, the application of 50 % recommended NPK through chemical fertilizers and 50 % N through straw resulted in an overall average higher increase of 7.4 % in system productivity, while at Rajendranagar, the application of 75 % NPK through chemical fertilizers and 25 % N through green manusre resulted in an overall average higher increase of 8.8 % in system productivity. This study highlights the adaptive capacity of different integrated nutrient management practices to rainfall and temperature variability under a rice-rice cropping system in humid, subhumid, and semiarid ecosystems. |
| References: | Science. 2003 Feb 14;299(5609):1032. (PMID: 12586935) Proc Natl Acad Sci U S A. 2004 Jul 6;101(27):9971-5. (PMID: 15226500) |
| المشرفين على المادة: | 0 (Fertilizers) 27YLU75U4W (Phosphorus) N762921K75 (Nitrogen) RWP5GA015D (Potassium) |
| تواريخ الأحداث: | Date Created: 20140513 Date Completed: 20150821 Latest Revision: 20211021 |
| رمز التحديث: | 20240628 |
| DOI: | 10.1007/s00484-014-0825-5 |
| PMID: | 24817490 |
| قاعدة البيانات: | MEDLINE |
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