NDLI: Improving Stubble Buds Sprouting and Productivity of Winter-Initiated Ratoon in Subtropical Climatic Conditions of India

Content Provider	Springer Nature Link
Author	Singh, S. N. Chauhan, R. S. Kumar, Rajendra Patnaik, J. R.
Copyright Year	2016
Abstract	In India, the ratoon cane productivity at national level stands at 58 t/ha against 85 t/ha for plant cane. Ratooning is a practice of growing full crop of sugarcane from sprouts of underground stubble buds left in the field after harvest of the plant (main) crop. In sugarcane farming, ratooning saves the cost of seedbed preparation, seed material and planting operations. Ratoons help in extending the crushing period of sugar mills as they mature earlier than the plant crop. However, most often, ratoon crop yields are lower than the plant crop. The major cause of low ratoon cane productivity in north-west Indian subtropics is the prevalence of severe winter conditions coinciding with harvesting of early-maturing high sugar varieties which inhibit the sprouting of subterranean stubble buds. Unsprouted stubble buds cause gaps in subsequent sugarcane (Saccharum sp Hybrid) ratoon crop resulting in lower initial plant stand and poor crop yield. Several agro-techniques viz., trash mulching, polyethylene mulching and intercropping have been applied to enhance the bud sprouting in winter-initiated ratoon, but all the efforts could not produce the desired results. To address these constraints, a field experiment was conducted during 2009–2010 and 2010–2011 for three consecutive seasons at the Indian Institute of Sugarcane Research, Lucknow, India, to assess the effect of cultural package practices and organic and/or inorganic sources of additions on yield and quality of winter-initiated ratoon in Indian subtropics. Results thus showed that application of sulphitation press mud cake (SPMC) at 20 t/ha or SPMC at 10 t/ha + 25 kg zinc sulphate improved the bud sprouting and significantly produced maximum number of shoots. Significant increase in the number of millable canes was noticed with the application of SPMC at 20 t/ha (103.1 thousand/ha) and SPMC 10 t/ha + 25 kg ZnSO$_{4}$ (102.1 thousand/ha). Maximum cane yield (71 t/ha) was also recorded with the application of SPMC at 20 t/ha followed by SPMC at 10 t/ha + 25 kg ZnSO$_{4}$ (69.3 t/ha). Thus, it clearly suggests that productivity of winter-initiated ratoon can be enhanced through the application of SPMC at 20 t/ha or SPMC 10 t/ha + 25 kg ZnSO$_{4}$/ha since these applications at the time of ratoon initiation enhanced the ratoon cane yield by 16.34 and 14.29 %, respectively, than that of conventional package of practices for ratoon initiation in subtropical climatic conditions of India. Juice quality of ratoon cane was remained unchanged.
Starting Page	515
Ending Page	519
Page Count	5
File Format	PDF
ISSN	09721525
Journal	Sugar Tech
Volume Number	18
Issue Number	5
e-ISSN	09740740
Language	English
Publisher	Springer India
Publisher Date	2016-02-08
Publisher Place	New Delhi
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Sugarcane Winter ratooning Low temperature Sugar factory press mud Agriculture
Content Type	Text
Resource Type	Article
Subject	Agronomy and Crop Science

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