Journal ID : AMA-15-03-2024-12952
[This article belongs to Volume - 55, Issue - 03]
Total View : 390

Title : Evaluation of Zinc Soil Fractions, Nutrient Status in Soil , Yield of soybean and safflower influenced by long-term effects of Manuring and Inorganic Fertilizers in Soybean and Safflower Cropping Sequence in Typic Haplusterts

Abstract :

The cultivation of soybean – safflower cropping sequence for sixteen years showed the significant variations of different zinc fractions due to different treatments of long term fertilizers in soil were monitored for two consecutive years of 2018-19 and 2019-20 on different fractions of zinc, nutrient status of soil and yield of soybean and safflower in Typic Chromustert of soil. The study encompasses varying chemical fertilizer levels of optimum fertilizer rate (30, 60 and 30 kg ha−1 N, P and K, and 60 and 40 N and P kg ha−1 respectively, for both the crops. The treatments were application of 50% NPK, 100% NPK, 150% NPK, 100% NPK + hand weeding (HW), 100% NPK + Zn, 100% NP, 100% N, 100% NPK + 5 t FYM ha−1, 100% NPK(-S) and unfertilized control. The pooled data on grain (1505 Kg ha-1), and straw (3115 Kg ha-1), yields of soybean as well as grain (1169 Kg ha-1) and straw yields (4092 kg ha-1) of safflower were highest with 100% NPK + FYM @ 5 t ha−1 and this treatment also gave significantly maximum availability of nitrogen (280 kg ha-1), phosphorous (19.02 kg ha-1) and potassium (798.50), respectively in soil than all the other treatments at harvesting stage. Among the different treatments of long term fertilization 100% NPK + Zinc gave significantly maximum zinc fractions of Exchangeable zinc, carbonated zinc, organically bound zinc, manganese oxide bound zinc, amorphous Fe and Al oxide bound zinc, crystalline Fe and Al oxide bound zinc, residual zinc and total zinc in 100% NPK + Zinc @ 25 kg ZnSO4 /ha followed by 100% NPK + FYM @ 5 t ha−1 and 150% NPK after harvest of safflower.

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