Production potential and energy dynamics of efficient cropping systems under diverse nutrient management practices

D.P. PACHARNE

doi:10.59797/ija.v62i3.4319

Authors

D.P. PACHARNE

DOI:

https://doi.org/10.59797/ija.v62i3.4319

Keywords:

Cropping systems, Energetics, Economic efficiency, Economics, Nutrient management, Pro- duction efficiency

Abstract

A field experiment was conducted to evaluate the production potential, their energetics and economics of effi- cient cropping systems under different nutrient management practices during 201112 and 201213. The treat- ments consisted of 3 cropping systems [groundnut (Arachis hypogaea L.)onion (Allium cepa L.), groundnut wheat [Triticum aestivum (L.) emend. Fiori & Paol.] and groundnutchickpea (Cicer arietinum L.)] with 4 nutrient management treatments, viz. recommended dose of fertilizer, fertilizer dose as per soil test, fertilizer dose as per soil test crop response (STCR) equations and control as main-plot treatments, whereas 3 fertilizer levels, viz. RDF, 75% RDF and 50% RDF as sub-plots treatments. Among the cropping systems, groundnutonion cropping system recorded significantly maximum groundnut equivalent yield (7.82 t/ha), production efficiency (35.1 kg/ha/ day) and economic efficiency ( 842.4/ha/day) than rest of the cropping systems. However, groundnutchickpea (0.82 t/ha) recorded significantly higher protein than groundnutwheat but at par with groundnutonion, while car- bohydrates (5.41 t/ha) and fats (0.81 t/ha) were registered higher with groundnutonion cropping system. Applica- tion of fertilizer as per STCR equation to preceding groundnut registered significantly higher protein (0.95 t/ha), carbohydrate (4.20 t/ha) and fat (0.88 t/ha) than control treatments. Similarly, groundnutonion cropping system obtained significantly maximum net monetary returns ( 188.1103/ha) and benefit: cost ratio (2.98), but ground- nutchickpea cropping system registered significantly higher energy output-input ratio (9.54), energy balance/unit input (8.85) and energy intensiveness (2.59 MJ/ ) on pooled mean. At the end of the 2 years cropping cycles, groundnutonion cropping system found to be most efficient and suitable for obtaining the maximum productivity and monetary returns with application of fertilizer as per STCR equation.

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Table 4. Production efficiency, economic efficiency and economics as influenced by different treatment (pooled mean of 2 years)

Treatment Production Economic Cost of Net monetary Benefit: efficiency efficiency cultivation returns cost ratio (kg/ha/day) (

/ha/day) (103

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Table 5. Energy indices of different cropping systems as influenced by different nutrient managements (pooled mean of 2 years)

Treatment Input energy Output energy System net Energy Energy Energy

( 103 MJ/ha) ( 103 MJ/ha) energy returns output- balance per intensiveness

( 103 MJ/ha) input ratio unit input (MJ/ )

Cropping system

Groundnutonion 23.5 158.4 134.9 6.72 5.72 1.66

Groundnutwheat 20.9 183.2 162.3 8.74 7.74 2.54

Groundnutchickpea 18.1 179.2 161.1 9.54 8.85 2.59

SEm 0.12 1.09 1.09 0.05 0.05 0.03

CD (P=0.05) 0.36 3.21 3.22 0.16 0.16 0.09

Nutrient management

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SEm 0.08 1.09 1.09 0.06 0.06 0.04

CD (P=0.05) 0.22 3.11 3.12 0.17 0.18 0.12

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