Sustaining wheat yields with crop management in heat stressed environments : effect of organic and inorganic fertilizers, mulching, and irrigation frequency

By:

Badaruddin, M

Contributor(s):

Material type: Text

TextLanguage: English Series: CIMMYT Wheat Special Report (WPSR) ; 47Publication details: Mexico : CIMMYT, 1998.Description: v, 22 pagesISBN:

970-648-005-6

Subject(s):

Online resources:

Open Access through DSpace

Summary: Wheat (Triticum aestivum (L.) emend. Thell) yield reduction associated with heat strees is a worldwide problem. The objectives of this research were to (i) to determine effects of major crop management factors on performance under heat stress and (ii) observe expression of morphological and physiological traits in response to inputs. Field experiments were conducted in Bangladesh, Sudan, and Mexico to determine the response of wheat performance to levels of crop management above those normally recommended by the perspective national programs. These included additional (i) irrigation, (ii) inorganic fertilizer (NPK), (iii) organic fertilizer in the form of farm yard manure (FYM), and (iv) straw mulch. In comparison to recommended management practices, addition of organic fertilizers resulted in the highest yield response (14%), and elevated levels of inorganic fertilizer the lowest (6%), When average across all environments. In Bangladesh, a hot humid environment, application of FYM raised yields by 24% in comparison to 16% when equivalent extra N was added in inorganic form, while there was no response to extra irrigation. In Sudan, a hot low relative humidity (RH) environment, extra irrigation resulted in substancial yield increases (68%), and the application of straw mulch was also beneficial. In Mexico, also a hot low RH environment where heat stress was modified by altering planting date, the effects of extra nutrition and straw mulch were generally more beneficial under hotter late sown conditions than with the normal sowing date. Traits generally responding to management included stand establisment, plant height, grain m-2, and total biomass, and in Mexico, chlorophyll content of flag leaves, canopy light interception, and canopy temperature depression, with FYM and mulch having the largest effects. Significant interactions among management factors are discussed.

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Item type	Current library	Collection	Call number	Copy number	Status	Date due	Barcode	Item holds
Report	CIMMYT Knowledge Center: John Woolston Library	CIMMYT Publications Collection	Look under series title (Browse shelf(Opens below))	1	Available		624325

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Wheat (Triticum aestivum (L.) emend. Thell) yield reduction associated with heat strees is a worldwide problem. The objectives of this research were to (i) to determine effects of major crop management factors on performance under heat stress and (ii) observe expression of morphological and physiological traits in response to inputs. Field experiments were conducted in Bangladesh, Sudan, and Mexico to determine the response of wheat performance to levels of crop management above those normally recommended by the perspective national programs. These included additional (i) irrigation, (ii) inorganic fertilizer (NPK), (iii) organic fertilizer in the form of farm yard manure (FYM), and (iv) straw mulch. In comparison to recommended management practices, addition of organic fertilizers resulted in the highest yield response (14%), and elevated levels of inorganic fertilizer the lowest (6%), When average across all environments. In Bangladesh, a hot humid environment, application of FYM raised yields by 24% in comparison to 16% when equivalent extra N was added in inorganic form, while there was no response to extra irrigation. In Sudan, a hot low relative humidity (RH) environment, extra irrigation resulted in substancial yield increases (68%), and the application of straw mulch was also beneficial. In Mexico, also a hot low RH environment where heat stress was modified by altering planting date, the effects of extra nutrition and straw mulch were generally more beneficial under hotter late sown conditions than with the normal sowing date. Traits generally responding to management included stand establisment, plant height, grain m-2, and total biomass, and in Mexico, chlorophyll content of flag leaves, canopy light interception, and canopy temperature depression, with FYM and mulch having the largest effects. Significant interactions among management factors are discussed.

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Knowledge Center Catalog

Sustaining wheat yields with crop management in heat stressed environments : effect of organic and inorganic fertilizers, mulching, and irrigation frequency

International Maize and Wheat Improvement Center (CIMMYT) © Copyright 2021.
Carretera México-Veracruz. Km. 45, El Batán, Texcoco, México, C.P. 56237.
If you have any question, please contact us at
CIMMYT-Knowledge-Center@cgiar.org

Knowledge Center Catalog

Sustaining wheat yields with crop management in heat stressed environments : effect of organic and inorganic fertilizers, mulching, and irrigation frequency

International Maize and Wheat Improvement Center (CIMMYT) © Copyright 2021. Carretera México-Veracruz. Km. 45, El Batán, Texcoco, México, C.P. 56237. If you have any question, please contact us at CIMMYT-Knowledge-Center@cgiar.org

International Maize and Wheat Improvement Center (CIMMYT) © Copyright 2021.
Carretera México-Veracruz. Km. 45, El Batán, Texcoco, México, C.P. 56237.
If you have any question, please contact us at
CIMMYT-Knowledge-Center@cgiar.org