Effect of Zinc Fertilization on Yield, Quality of Soybean and Zinc Pools in a Typic Haplusterts

Field experiment was conducted at the research Farm of JNKVV, Jabalpur (M.P) during the Kharif season of 2018 with three main treatments as single year application, alternate and each year zinc addition and five levels of Zn (0, 2.5, 5, 7.5 and 10 kg ha-1 as sub treatments in a split plot design. Results revealed that alternate year Zn application increased seed yield by 1.48 t ha-1 over single year. The difference recorded in between alternate year and single year Zn application was 0.33 t ha-1. Treatment 5.0 kg Zn ha-1 had significantly increased seed yield by 1.43 t ha-1 over control. The difference recorded in between 5.0 kg Zn ha-1 and in control Zn application was 0.38 t ha-1. The each year Zn application and 10 kg Zn ha-1 gave the highest protein (40.30%) and oil content (20.17%) in seed. Results explained that the higher release of Zn pools were observed with the each year Zn application and 10 kg Zn ha-1. The order of prevalence of Water soluble and exchangeable-Zn< Complexed-Zn<Amorphous Sesquioxide < Crystalline Sesquioxide bound-Zn< Residual-Zn.

Optical Characterization of Bulk GaN Grown from a Na/Ga Flux

ABSTRACTBulk GaN crystals up to several mm in size, grown by a Na/Ga flux method, have been characterized using room and low temperature photoluminescence (PL) and panchromatic cathodoluminescence (CL) imaging. Highly resolved excitonic PL spectra are obtained for material grown in a new, large-scale reactor. The crystal polarity affects the incorporation of residual Zn and Mg or Si acceptors and the deep level luminescence bands in c-oriented platelets. A Zn (A°,X) triplet structure with unusual thermalization properties and a highly resolved structural defect related PL peak are observed. Striations are found in some of the smaller platelets by CL imaging, but are absent in the prismatic crystals.