Effect of Calcium Boro-Humate Application on the Yield Performance of Cotton
A field experiment was conducted to study the effect of various sources of boron on the growth and yield of cotton.The experiment was laid out in factorial randomized block design with 13 treatments.The treatments consisted of three levels of boron supplied through four sources with one control.Three levels of boron were (L1) 2.5,(L2) 5.0 and (L3) 7.5 kg ha1.The required quantity of boron for the treatments was supplied through four sources,viz.,(S1) Borax,(S2) Boric acid,(S3) Sodium tetra borate and (54) Calcium boro-humate.The experiment was conducted in a Typic Ustifluvent soil having the pH 7.8,EC 1.30 dSm1 and CEC 11.70 c mol P+ kg-1.The soil was low in organic carbon 4.5 g kg-1 and available N (198.14 kg ha-1),medium in available P (12.03 kg ha-1),high in available K (310 kg ha-1) and deficient in available (hot water soluble) B (0.47 mg kg-1).Cotton var.MCU 7 was grown as test crop.The result of the experiment clearly revealed that application of B through four different sources showed a significant increase in growth and yield of cotton over control.Among the four sources,addition of B through calcium boro-humate showed a superior performance in respect of growth and yield as compared to the other three sources.Based on their efficiency,the four sources of boron tested in the experiment are given in the descending order as Calcium boro-humate > Sodium tetra humate > Boric acid >Borax.Application of boron at 7.5 kg ha-1 through calcium boro-humate increased the seed cotton yield to the tune of 21.20%,besides improving availability of boron in post harvest soil.
Boron Calcium boro-humate Cotton Seed cotton yield Ginning percent
K.Dhanasekaran R.Priyarani
Department of Soil Science and Agricultural Chemistry,Faculty of Agriculture,Annamalai University Annamalai nagar-608002,Tamilnadu,India
国际会议
the 16th Meeting of the International Humic Substances Society (第十六届国际腐殖物质学会大会(IHSS 16))
杭州
英文
249-251
2012-09-09（万方平台首次上网日期，不代表论文的发表时间）