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Shubha, Kumari
- Controlled Traffic Farming: An Approach to Minimize Soil Compaction and Environmental Impact on Vegetable and Other Crops
Abstract Views :234 |
PDF Views:87
Authors
Affiliations
1 Division of Crop Research, ICAR-Research Complex for Eastern Region, Patna 800 014, IN
2 Plant Breeding, Department of Soil and Crop Sciences, Texas A&M University, College Station, Texas 77843, US
1 Division of Crop Research, ICAR-Research Complex for Eastern Region, Patna 800 014, IN
2 Plant Breeding, Department of Soil and Crop Sciences, Texas A&M University, College Station, Texas 77843, US
Source
Current Science, Vol 119, No 11 (2020), Pagination: 1760-1766Abstract
Mechanized farming for vegetable production has evolved as an integral part of commercial agriculture during the past few decades. As a first step towards mechanized farming the use of tractors in Indian agriculture has increased by 528% during the period 1990–91 to 2018–19 from 0.15 to 0.8 million/year. Undoubtedly, use of such technologies has made vegetable as well as foodgrain production a profitable venture by easing land preparation, weed management and other intercultural operations, crop harvesting, etc. However, their continuous use in production fields has resulted in the substantial compaction of soil along the wheel lines of tractors and similar heavy machinery. Reports indicate a significant yield loss (13–73%) owing to soil compaction because it restricts ischolar_main penetrance into the soil, limiting nutrient and water uptake by the plants, and also potential water stagnation, which can limit the normal activities of respiring ischolar_mains leading to retarded plant growth and ischolar_main diseases. In this context, control traffic farming (CTF), which aims to reduce the area affected by the operation of heavy machinery that otherwise lead to soil compaction, brings a substantial value to the current global focus of sustainable and precision farming. CTF attempts to restrict the spatial movement of machinery wheels to fewer operation lanes during and across production cycles for a long time and allows specifically the undisturbed areas of soil for crop production. Research confirms a significant improvement in crop yield in different crop production systems worldwide and reduction in methane emission due to soil absorption (372–2100%) compared to random traffic farming. In this article, we discuss the advantages of CTF in terms of ischolar_main growth, nutrient mobilization and energy efficiency of the vegetable production system, and also argue on its scope in the Indian context, given the situation that no or only a few studies have been reported from the country.Keywords
Controlled Traffic Farming, Environmental Impact, Soil Compaction, Vegetables.Full Text
- Soil organic carbon fractions, carbon stocks and microbial biomass carbon in different agroforestry systems of the Indo-Gangetic Plains in Bihar, India
Abstract Views :132 |
PDF Views:71
Authors
Nongmaithem Raju Singh
1,
A. Raizada
2,
K. K. Rao
3,
Kirti Saurabh
3,
Kumari Shubha
3,
Rachana Dubey
3,
L. Netajit Singh
4,
Ashish Singh
5,
A. Arunachalam
6
Affiliations
1 ICAR Research Complex for Eastern Region, Patna 800 014, India; ICAR Research Complex for North Eastern Hill Region, Umiam 793 103, India, IN
2 ICAR-Mahatma Gandhi Integrated Farming Research Institute, Motihari 845 429, India, IN
3 ICAR Research Complex for Eastern Region, Patna 800 014, India, IN
4 College of Agriculture University, Jodhpur 342 304, India, IN
5 ICAR Research Complex for North Eastern Hill Region, Umiam 793 103, India, IN
6 ICAR-Central Agroforestry Research Institute, Jhansi 284 003, India, IN
1 ICAR Research Complex for Eastern Region, Patna 800 014, India; ICAR Research Complex for North Eastern Hill Region, Umiam 793 103, India, IN
2 ICAR-Mahatma Gandhi Integrated Farming Research Institute, Motihari 845 429, India, IN
3 ICAR Research Complex for Eastern Region, Patna 800 014, India, IN
4 College of Agriculture University, Jodhpur 342 304, India, IN
5 ICAR Research Complex for North Eastern Hill Region, Umiam 793 103, India, IN
6 ICAR-Central Agroforestry Research Institute, Jhansi 284 003, India, IN
Source
Current Science, Vol 124, No 8 (2023), Pagination: 981-987Abstract
A study was undertaken in the Vaishali district of Bihar, India, in 2020 to assess the effect of various agroforestry systems (AFS) on the distribution of different pools of soil organic carbon (fraction I – very labile, fraction II – labile, fraction III – less labile and fraction IV – non-labile), carbon stocking and soil microbial activity. The mean (0–45 cm) total organic carbon (TOC) in different AFS ranged from 5.55 to 6.64 Mg C ha–1, with the highest under poplar-based AFS (PB-AFS). Across the AFS studied, the C stocks (0–45 cm) varied from 36.24 (mango-based AFS) to 41.43 Mg C ha–1 (PB-AFS). Overall, the magnitude of C fractions showed the order: fraction I > fraction IV > fraction III > fraction II. Significantly higher soil microbial biomass carbon was recorded under PB-AFS (219.36 mg g–1) in 0–15 cm depth. Basal respiration was also the highest under PB-AFS (0.54 mg CO2-C g–1 h–1), followed by TB-AFS (0.50 mg CO2-C g–1 h–1) in 0–15 cm depth. Principal component analysis result showed that PC 1 and PC 2 represented about 97% of the total variation. TOC and active carbon pool had the maximum loading in PC 1, while microbial metabolic quotient and bulk density had the maximum value in PC 2Keywords
Agroforestry system, basal respiration, princi-pal component analysis, soil microbial activity, total orga-nic carbon.Full Text
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