RESPONSE OF GROUNDNUT TO ZINC, BORON AND ORGANICS ON THE YIELD AND NUTRIENT AVAILABILITY IN COASTAL SANDY SOIL
The light texture sandy soils are also well known for the deficiency of micronutrients especially zinc and boron. The zinc (Zn) and boron (B) plays an important role in improving the yield and quality of groundnut. A field experiment was conducted to find out the response of groundnut to Zn and B on the nutrient availability and yield of groundnut in coastal sandy soil. . The experiment was carried out in a farmer’s field at Ponnanthittu coastal village, near Chidambaram Taluk, Cuddalore district, Tamil Nadu. The Physico- chemical properties and nutrient status of initial soil were: pH- 8.39, EC- 1.61dSm-1 , organic carbon- 2.7 g kg-1 and Zn – 0.70 mg kg-1, B- 0.07 mg kg-1, respectively. Control, 100% NPK, 150% NPK, 150% NPK + ZnSO4 @ 30 kg ha-1, 150% NPK + Borax @15 kg ha-1 and 150% NPK + ZnSO4 @ 30 kg ha-1 + Borax @15 kg ha-1 were the treatments studied in a Randomized Block Design (RBD) with four replications, using groundnut variety VRI 2. All the treatments received a common dose of Composted Coirpith application @ 12.5 t ha-1. The results clearly indicated that, 150% NPK along with ZnSO4 @ 30 kg ha-1 and Borax @ 15 kg ha-1 with composted coirpith application significantly increased the nutrient availability and yield of groundnut. This treatment recorded the highest pod yield of 2466 kg ha-1 and haulm yield of 3354 kg ha-1 as compared 100% recommended NPK alone 1878 and 2663 kg ha-1 of pod and haulm yield, respectively.
Ganeshappa, K.S., 2000. Integrated nutrient management in soybean and its residual effect on wheat under rainfed condition. Ph.D. Thesis, Univ. Agric. Sci., Dharwad.
Helpyati, A.S., 2001. Effect of moisture regimes and zinc levels on the growth and yields of summer groundnut. Karnataka J. Agric. Sci., 14(2): 451-453.
Jackson, M.L., 1973. Soil chemical analysis. Prentice Hall of India Pvt. Ltd., New Delhi.
Khar, D., 1993. Effect of continuous liming, manuring and cropping on DTPA extractable micronutrients in an alfisol. J. Indian Soc. Soil Sci., 41: 366-367.
Malewar, G.U., Jadhav, N.S. and Budhewar, L. 1982. Possible role of Zn in nodulation and other growth attributes of groundnut. J. Maharashtra Agric. Univ., 7(3): 241-242.
Mandal, B., 1993. Effect of lime and organic matter application on the availability of added boron in acidic alluvial soil. In: Proc. National Seminar on Development in Soil Sciences. Indian Soc. Soil Sci., Abstr., 57-58.
Raniperumal, Honora Francis, P. Duraisamy and S.P. Palaniappan, 1991. Integrated nutrient management in Tamilnadu. Bull. Tamil Nadu Agric. Univ., Coimbatore, India.
Ravankar, H.N., R.S. Deore and P.W. Deshmukh, 1999. Effect of nutrient management through organic and inorganic sources on soybean yield and soil fertility. PKV Res. J., 23: 47-50.
Saxena, S.C. and Chandel, A.S. 1997. Effect of micronutrients on yield, nitrogen fixation by soybean and organic carbon balance in soil. Indian J. Agron, 42(2): 329.
Singaravel, R., V. Prasath and D. Elayaraja, 2004. Effect of organics and micronutrients on the growth, yield and nutrient uptake of groundnut in coastal soil. In : Proc. National seminar on wasteland development, Tamil Nadu Agric. Univ., Killikulam, December, 27-29, pp. 166-171.
Singaravel, R., V. Prasath and D. Elayaraja, 2006. Effect of organics and micronutrients on the growth, yield of groundnut in coastal soil. Int. J. Agric. Sci., 2(2): 401-402.
Subramaniyan, K., Kalaiselvam, P. and Arunmozhi, N. 2001. Response of confectionery groundnut to micronutrients. Legume Res., 24(2): 139-140.
Sudarasan, S. and Ramaswami, P.P. 1993. Micronutrient nutrition in groundnut – blackgram cropping system. Fert. News, 38(2): 51-57.
Sumangala, B.J., 2003. Response of groundnut (Arachis hypogaea L.) to conjunctive use of micronutrients and bio-inoculants at graded levels of fertilizers under dry land conditions. Ph.D. Thesis, Univ. Agric. Sci., Bangalore.
Tomar, R.A.S., Kushwaha, H.S. and Tomar, S.P.G. 1990. Response of groundnut (Arachis hypogaea L.) varieties to phosphorus and zinc under rainfed conditions. Indian J. Agron., 35(4): 391-394.
Tomar, R.A.S., Vijay Singh and H.S. Kushwaha, 1995. Response of groundnut to phosphorus and zinc grown in alluvial soil. Agric. Sci. Digest., 15(2): 64-68.
Tripathy, S.K., Patra, A.K. and Samui, R.C. 1999. Effect of micronutrients on nodulation, growth, yield and nutrient uptake of summer groundnut (Arachis hypogaea). Ann. Agric. Res., 20(4): 439-442.