Sustaining soil fertility with organic‐C, N, P, and K by using farmyard manure and fertilizer‐N in a semiarid zone: A long‐term study

Gupta, A. P.; Narwal, R. P.; Antil, R. S.; Dev, S. P.

doi:10.1080/15324989209381318

Cited by 30 publications

(17 citation statements)

References 6 publications

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“…Besides, a part of the N might have been converted to such forms, which were not extracted in alkaline KMnO 4 . Twenty years of continuous application of pearl millet -wheat rotation in sequence with different amounts of FYM and fertilizer N could not sustain the initial concentration of N in surface (0 -15 cm) soil (Gupta et al 1992). Available P content of the soil decreased from 12.6 to 8.20 mg P kg 71 in soil with applying 75 kg N þ 30 kg P 2 O 5 ha 71 for 10 years by raising pearl millet -wheat crops in sequence (see Table III).…”

Section: Resultsmentioning

confidence: 96%

“…The build-up of available P in sub-surface layer was lower compared to surface soil. The increase in available P of the soil resulting from the application of organic manures may be due to the mineralization of organic P, the production of organic acids which have a solubilizing effect on soil P and the organic aminos which retard the fixation of phosphorus in soil (Gupta et al 1992;Narwal & Antil 2005). The critical evaluation of the data indicated that considering the amount of total P added through FYM, poultry manure and pressmud during the tenure of experiment (700, 716 and 522 kg P ha 71 , respectively) but Table III.…”

Section: Resultsmentioning

confidence: 98%

“…The results indicated that application of 15 t FYM ha 71 year 71 is sufficient to maintain the nutrients (except N) status of P, K and micronutrients of soil to its original level (Gupta et al 1992). Due to the linear response of N application up to 120 kg N ha 71 , the savings in fertilizer N is not possible.…”

Section: Introductionmentioning

confidence: 98%

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Effects of organic manures and fertilizers on organic matter and nutrients status of the soil

Antil

Singh

2007

Archives of Agronomy and Soil Science

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A long-term field demonstration was initiated in 1995 to evaluate the effect of organic manures (FYM, poultry manure and pressmud) and mineral fertilizers on changes of pH, electrical conductivity (EC), organic C and nutrient contents under pearl millet -wheat cropping sequence. Continuous application of organic manures alone or in conjunction with NP fertilizer for 10 years decreased the soil pH. However, a reverse trend was observed in case of EC. Organic C content of the soil decreased from its initial value, when only NP fertilizers were applied and increased significantly with the application of organic manures applied alone or with NP fertilizers. The highest organic carbon content of the soil has approached to 0.99% in plot receiving 15 Mg FYM þ150 kg N þ30 kg P 2 O 5 ha 71 . The application of organic manures with or without NP fertilizers could not sustain the original level of N. However, their application increased the available P, K and DTPA extractable Zn, Fe, Mn and Cu content of soil. Application of P, K and micronutrients can be avoided with the application of organic manures. The build-up of organic C and nutrient contents was higher in surface soil as compare to subsurface soil.

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Section: Resultsmentioning

confidence: 96%

Section: Resultsmentioning

confidence: 98%

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Effects of organic manures and fertilizers on organic matter and nutrients status of the soil

Antil

Singh

2007

Archives of Agronomy and Soil Science

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“…m -2 . yr -1 (Gupta et al, 1992). The quantity of soil organic C accumulated in these systems increased with application of inorganic fertilizers, which may have further stimulated plant productivity and water uptake to slow decomposition.…”

Section: Manure Application Can Sequester Carbonmentioning

confidence: 99%

Land Application of Manure for Beneficial Reuse

Risse¹,

Cabrera²,

Franzluebbers³

et al. 2006

Animal Agriculture and the Environment, National Center for Manure &Amp; Animal Waste Management White Papers &Amp;#x

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The concentration of animal production systems has increased efficiency and improved overall economic return for animal producers. This concentration, along with the advent of commercial fertilizers, has led to a change in the way animal producers view manure. Manure, once valued as a resource by farmers, is now treated as a waste. Air and water quality concerns that arise primarily from the under-utilization or inefficient use of manure contribute to these changing views. However, when properly used, manure is a resource and should be regulated as such. In the United States, the USDA/EPA Unified National Strategy for Animal Feeding Operations outlines how animal feeding operations should be regulated and acknowledges that land application at proper agronomic rates is the preferred use for manures. However, many limitations such as water quality concerns, uncertainty in manure nutrient availability, high transportation costs, and odor concerns cause some to question land application. This paper documents the benefits of land application of manure, discusses limitations that hinder greater manure utilization, and outlines research and extension needs for improving manure utilization.

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“…This decrease in SOM levels seems to be associated with the decline in soil productivity. Application of organic manures increases the yield of various crops (Gupta et al, 1992(Gupta et al, , 2003Brar et al, 1995;Ko¨rschens and Muller, 1996). The availability of various organic manures is limited and other organic materials will have to be exploited for recycling through agriculture.…”

Section: Introductionmentioning

confidence: 95%

Utilization of deoiled castor cake for crop production

Gupta¹,

Antil²,

Narwal³

2004

Archives of Agronomy and Soil Science

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A screen house experiment was undertaken to study effect of time of application of deoiled castor cake on the yield, N and P uptake by wheat crop. The results indicate that the wheat growth decreased significantly with increasing dose of castor cake, when castor cake was applied just before sowing of wheat. When castor cake was applied 10 days before wheat sowing, the dry matter yield (DMY) of wheat increased up to 0.125% dose of castor cake and reduced thereafter. But when the castor cake was applied 20 days before wheat sowing, the DMY was at par under all the doses of castor cake and better than control indicating the degradation of the toxicants produced by the castor cake. Application of castor cake can also be helpful in reducing the cost of phosphatic fertilizer. Thus it can be concluded that castor cake should be applied at least 3 weeks before sowing of the crop and keeping the field moist for degradation of the toxicants.

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Sustaining soil fertility with organic‐C, N, P, and K by using farmyard manure and fertilizer‐N in a semiarid zone: A long‐term study

Cited by 30 publications

References 6 publications

Effects of organic manures and fertilizers on organic matter and nutrients status of the soil

Effects of organic manures and fertilizers on organic matter and nutrients status of the soil

Land Application of Manure for Beneficial Reuse

Utilization of deoiled castor cake for crop production

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