Efficient tillage and nitrogen practices for improving monetary returns and yield of finger millet and pigeonpea in semi-arid Alfisols
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Title |
Efficient tillage and nitrogen practices for improving monetary returns and yield of finger millet and pigeonpea in semi-arid Alfisols
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Creator |
B.K. Ramachandrappa
G.R. Maruthi Sankar A. Satish , M.N. Thimmegowda G.N. Dhanapal , N. Indra Kumar M.A. Shankar , C.H. Srinivasa Rao P.K. Mishra |
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Subject |
Organic and inorganic nitrogen, Net returns, Rainwater use efficiency, Soil fertility, Sustainable yield index, Tillage
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Description |
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Field experiments were conducted with three tillage treatments viz., CT: Conventional tillage (3 ploughings + 3 intercultures), RT: Reduced tillage (2 ploughings + 2 intercultures) and MT: Minimum tillage (one ploughing + one interculture) in combination with three nitrogen levels viz., F1: 100% N (organic), F2: 50% N (organic) + 50% N (inorganic) and F3: 100% N (inorganic) to identify the best management practices for improving soil fertility and sustain yield of finger millet (Eleusine coracana) and pigeonpea (Cajanus cajan) under semi-arid Alfisols during 2003 to 2011. The results revealed that CTF2 gave significantly higher mean finger -millet yield of 2613 kg ha-1 and rainwater use efficiency (RWUE) of 4.48 kg ha mm , -1 while CTF1 gave significantly higher pigeonpea yield of 907 kg ha-1 and RWUE of 4.10 kg ha mm over years. Further, CTF2 gave maximum net returns of ` 31639 ha-1 and benefit-cost (B:C) ratio of 3.65 with sustainability yield index (SYI) of 59.0% from finger millet, while CTF1 gave net returns of ` 43801 ha -1 and B:C ratio of 3.26 with SYI of 56.6% from pigeonpea. Based on the effects of tillage and nitrogen on soil parameters observed in 2003 and 2011, there was a decrease in the pH, soil P and organic carbon, while there was an increase in the electrical conductivity, soil N and K. Application of N through organics or as combination of organics and inorganics, maintained maximum soil fertility compared to inorganic N alone. We conclude that CT + 50% N (organic) + 50% N (inorganic) for finger millet and CT + 100% N (organic) for pigeonpea under rotation are efficient for attaining maximum yield, RWUE, monetary returns and SYI in semi-arid Alfisols. Not Available |
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Date |
2020-06-11T10:35:57Z
2020-06-11T10:35:57Z 2017-07-01 |
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Type |
Research Paper
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Identifier |
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Not Available http://krishi.icar.gov.in/jspui/handle/123456789/37027 |
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Language |
English
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Relation |
Not Available;
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Publisher |
Not Available
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