Nitrogen fertilization of sugar cane in Mauritius - The ecologists' way
Code (CO)MSI99P0055
Author (AU)Ng Kee Kwong, K. F.
Figon, C.
Deville, J.
Title - English (ET)Nitrogen fertilization of sugar cane in Mauritius - The ecologists' way
Document Type(DT)Periodical article
Date of publication (DP)1990
Series (SE)Revue agric. sucr. Ile Maurice
Source (SO)69: 67-74
Notes (NO)Published 1991
Language of text (LT)En
Language of summaries (LS)En
Fr
Abstract (AB)The effect of omitting or halving the recommended N rate (120 kgN/ha) in alternate years on sugar yields were studied in field trials laid down during 1979 and 1982 in the different agro-climatic regions of Mauritius. The results showed that due to the poor residual value of N, withholding N fertilization in alternate years would lead to significant yield losses in the ratoons not fertilized. The yields of ratoons where N supply was restored may also be detrimentally affected. The response of sugar cane to N fertilization varied from site to site. Application of just 60 KgN/ha yearly was at some sites sufficient to sustain the currently attainable yield levels. The site specificity of response to N fertilizer therefore provides scope for reducing the input of N fertilizer without impairing sugar cane yields. At the same time, the site specificity of response to N, stresses the need for elaboration of a test method that accurately reflects the soil N supplying capacity to sugar cane before any reduction in the recommended N rates can be contemplated.
Descriptors - English (DE)SUGARCANE
NITROGEN
PLANT NUTRITION
Descriptors - Geographic (DG)MAURITIUS
Sort Key 1(K1)Sugarcane: Soils and plant nutrition
Sort Key 2 (K2)Fertilization: Nitrogen
Date record entered (DA)1991-12-06
Language of analysis (LA)En
Affiliation (AF)Mauritius Sugar Industry Research Institute
Location (LO)LIB
Processing status (PS)CAT
MSIRI Staff (MS)CHEM