Improving Productivity of Sugarcane
The reasons for low productivity in sugarcane are:
• The improved varieties released by research organizationsperform well in the initial years but lose their vigour and declinein yield in due course
• Water availability is unpredictable. The concern is not only thequantity of water required, but also the lack of proper watermanagement practices. Due to this, water is either wasted orsometimes not available at the right time
• Unpredictable climatic aberrations, improper cultivation practices, negligence in plantprotection measures, imbalanced nutrient management and other practices like monocropping often result in low productivity, fetching low price in the market.In addition, it is also very important to consider the enormous amount of water that goesinto the sugarcane production. Approximately 25,000 kg of water is needed to produce 10 kgof sugarcane. But, the water table is depleting every year. Costs of production, moreover, areincreasing not just for the small farmers but for the large industrial players as well. In future,these challenges will become even more complex with climate change inducing direct andindirect effects on crops, water, pests and diseases, and volatility in the international market
The major principles for Sustainable Sugarcane Production Practice involves:
Raising nursery using single budded chips.• Transplanting young seedlings (25-35 days old).• Maintaining wide spacing (5X2 feet) in the main field.• Providing sufficient moisture and avoiding inundation of water.• Encouraging organic method of nutrient and plant protection measures.• Practicing intercropping for effective utilization of land
Water management is another crucial issue.It is always emphasized that sufficient moisture isprovided rather than inundating the field with wateras flooded condition will actually hinder the growthof the plant. Measures like raising of nursery, followingfurrow/alternate furrow irrigation, optimumapplication of water through drip irrigation shouldbe followed. So, by giving only required quantity ofwater about 40% of water is saved
Organic method of cultivation
discourage high applicationof chemical fertilizers and use of pesticides andweedicides. Farmers should incorporate moreorganic manures, bio-fertilizers and follow bio-control measures. The sudden switch over toorganic cultivation is not advisable. Instead, agradual reduction of inorganic and adoption oforganic methods can be tried by framers for longterm benefits
Intercropping in sugarcane with crops like wheat, potato, cowpea, french bean,chickpea, water melon, brinjal etc. In addition to effective utilization of land, this practice willreduce the weed growth up to 60% and give extra income to farmers
Water managementIt is always better to provide sufficient quantity of water on timerather than flooding the field with enormous amount of water.• In conventional flooding method water is always applied morethan the biological demand of the crop which may affect thecrop growth.• After transplantation, the frequency of the irrigation maydiffer depending on the soil type, age of the crop, rainfall andmoisture availability. For sandy soil, the frequency will be moreand for clay soil it will be less.• Give irrigation once in 10 days during tillering stage (36-100days), once in 7 days during Grand Growth period (101-270days) and once in 15 days during Maturity period (from 271days till harvest)
• Furrow irrigation helps in proper application and saving of water.Alternate furrow irrigation means irrigating the furrows of oddnumbers initially followed by irrigating the furrows of evennumbers after 7 to 15 days as per the moisture content and ageof the crop. This will ensure saving of water up to 50%.• Drip irrigation can be practiced effectively in SSI due to widerspacing and raising of single seedlings. Farmers who wish toadopt drip irrigation can contact the concerned firms and installthem in their fields
Regds