Influence of bio -for tification technic with micronutrients on tomato crop (PKM-1) in salt affected soil

Author: 
Senthilkumar
Abstract: 

In India 11.7 million ha-1 is likely to be affected by salinity and alkalinity problem by 2025. 25 % of ground water used for irrigation is either saline or brackish. 10 million ha-1 of land are lost because of salinity caused by irrigation each year. Most salt-affected soils are deficient in N and Zn and are medium to high in K. In order to provide micronutrient to plant in a sustained manner, It is advocated to apply micronutrients in enriched form with organic manures .In this contest, a field experiment was conducted on salt affected soil (sandy loam) to evaluate study of biofortification technic with micronutrientson tomato crop in salt affected soil. The treatments consisted of application of organic manures enriched with micronutrients. The experiment was laid out in Randomized Block Design and replicated three times. The treatments were T1- 20 kg of ZnSO4 + 5.0 kg of borax as soil application. T2-T1+pressmud @ 12.5 t ha-1. T3- 10 kg of ZnSO4+ 2.5 kg of borax as a soil application+ pressmud @ 12.5 t ha-1 + 0.50 % ZnSO4 + 0.40% borax of F.S on 45 and 60 DAT. T4- 10 kg of ZnSO4 + 2.5 kg of borax as a soil application enriched with pressmud @ 12.5 t ha-1 + 0.50% ZnSO4+0.40% borax as F.S on 45 and 60 DAT. T5-T1+vermicompost @ 4 t ha-1. T6 - 10 kg of ZnSO4 + 2.5 kg of borax as a soil application + vermicompost @ 4 t ha-1 + 0.50 % ZnSO4 + 0.40% borax as F.S on 45 and 60 DAT. T7- 10 kg of ZnSO4 + 2.5 kg of borax as a soil application enriched with vermicompost @ 4 t ha-1 + 0.50 % ZnSO4 + 0.40% borax as F.S on 45 and 60 DAT. The results of the experiment clearly revealed that the application of 10 kg of ZnSO4 + 2.5 kg of borax as soil application enriched with vermicompost @ 4 tha-1 + 0.50% ZnSO4+0.40% borax as F.S on 45and 60 DAT significantly influenced the growth, yield, quality and nutrient uptake. The treatment next in order were T4 -10 kg of ZnSO4 + 2.5 kg of borax as a soil application enriched with pressmud @ 12.5 t ha-1 + 0.50 % ZnSO4 + 0.40% borax of F.S on 45 and60 DAT respectively.

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