干旱区生态环境知识资源中心(Arid): Crop and water productivity, energy auditing, carbon footprints and soil health indicators of Bt-cotton transplanting led system intensification

Arid

DOI	10.1016/j.jenvman.2021.113732
	Crop and water productivity, energy auditing, carbon footprints and soil health indicators of Bt-cotton transplanting led system intensification
	Rajpoot, Sudhir K.; Rana, D. S.; Choudhary, Anil K.
通讯作者	Choudhary, AK (corresponding author), ICAR Indian Agr Res Inst, Div Agron, New Delhi 110012, India.
来源期刊	JOURNAL OF ENVIRONMENTAL MANAGEMENT
ISSN	0301-4797
EISSN	1095-8630
出版年	2021
卷号	300
英文摘要	Direct-seeded-cotton (DSC) leads to low crop and water productivity and energy-output with higher carbonfootprints besides impairing system-intensification under conventional cotton-wheat cropping system (CWCS). Hence, we evaluated two methods of Bt-cotton establishment [transplanted cotton (TPC) & DSC)] at three planting geometries/densities in four Bt-cotton based cropping-systems [DSC-wheat (DSC-W), TPC-wheatmungbean (TPC-W-M), DSC-onion (DSC-O), TPC-onion-fodder cowpea + fodder maize (TPC-O-FC + FM)] in semi-arid region of south Asia. Poly-glass nursery-raised TPC exhibited significantly higher germination (96.5%), seedling-survival (96.1%) and 14.1% higher plant-stand owing to lower seedling-mortality (3.2%). TPC used similar to 60% less irrigation-water but exhibited significantly higher seed-cotton, seed and lint yield, net-returns, radiation-use-efficiency and water-productivity by 11.4, 9.9, 14.3, 17.3, 10.7 and 260.6%, respectively over DSC. Planting geometry/density of 60 x 45 cm (37,037 plants ha(-1)) exhibited significantly higher crop and water productivity and economic-returns. Bt-cotton transplanting led system-intensification enhanced the systemproductivity (26.1%), profitability (30.5%), water-productivity (19.3%) and land-use-efficiency (8.5%) over the DSC-based systems with significantly higher values under TPC-O-FC + FM. Energy-use pattern reveled that farm inputs viz. Fertilizers (54-60%), water (15-25%) and diesel (6-10%) consumed bulk of the input-energy in different cropping systems with greatest values under TPC-O-FC + FM. TPC-W-M exhibited highest system energy-output (604.6 x 10(3) MJ ha(-1)) and energy-returns (566.2 x 10(3) MJ ha(-1)). TPC-O-FC + FM exhibited significantly higher carbon-consumption (668.9 kg CE ha(-1)) and carbon-output (21431.3 kg CE ha(-1)) while maintaining significantly higher carbon-efficiency (32.0) and carbon sustainability index (31.0). TPC-O-FC + FM had least carbon-footprints (0.07 kg CE kg(-1) SCEY) while conventional-CWCS exhibited 2-folds higher carbonfootprints. Legume-imbedded TPC-based cropping systems markedly increased the soil physical (bulk-density, water-stable-aggregates), chemical (SOC, available-NPK) and biological properties (soil-microbial-biomass-carbon, dehydrogenase and ergosterol activity) over the conventional CWCS and DCS-O systems. Overall, Bt-cotton transplanting led system-intensification upholds great importance in enhancing the system crop and water-productivity, profitability, energy-productivity, resource-use-efficiency and soil-health with minimal carbonfootprints in semi-arid agro-ecosystems of south Asia.
英文关键词	Cotton-wheat cropping system Carbon footprints Energy productivity Radiation-use efficiency Transplanted Bt-cotton Water productivity
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000704757900004
WOS关键词	INTEGRATED NUTRIENT MANAGEMENT ; AM-FUNGI ; GOSSYPIUM-HIRSUTUM ; USE EFFICIENCY ; CONSERVATION AGRICULTURE ; INTERCROPPING SYSTEMS ; INORGANIC PHOSPHORUS ; ZN BIOFORTIFICATION ; IRRIGATION REGIMES ; SCALING-UP
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363852
作者单位	[Rajpoot, Sudhir K.; Rana, D. S.; Choudhary, Anil K.] ICAR Indian Agr Res Inst, Div Agron, New Delhi 110012, India; [Rajpoot, Sudhir K.] Banaras Hindu Univ, Inst Agr Sci, Dept Agron, Varanasi 221005, Uttar Pradesh, India; [Choudhary, Anil K.] ICAR Cent Potato Res Inst, Div Crop Prod, Shimla 171001, India; [Rana, D. S.] Sharda Univ, Sch Agr Sci, Greater Noida 201306, Uttar Pradesh, India
推荐引用方式 GB/T 7714	Rajpoot, Sudhir K.,Rana, D. S.,Choudhary, Anil K.. Crop and water productivity, energy auditing, carbon footprints and soil health indicators of Bt-cotton transplanting led system intensification[J],2021,300.
APA	Rajpoot, Sudhir K.,Rana, D. S.,&Choudhary, Anil K..(2021).Crop and water productivity, energy auditing, carbon footprints and soil health indicators of Bt-cotton transplanting led system intensification.JOURNAL OF ENVIRONMENTAL MANAGEMENT,300.
MLA	Rajpoot, Sudhir K.,et al."Crop and water productivity, energy auditing, carbon footprints and soil health indicators of Bt-cotton transplanting led system intensification".JOURNAL OF ENVIRONMENTAL MANAGEMENT 300(2021).