PJB-2019-711
Ambrin
Abstract
It is significant to work out a best amalgamation of chemical and manures fertilizers to sustain high crop yields without deterioration of soil health. Banana crop required high nutrient and globally plays essential role in economic value of country. As, Pakistan are facing low crop yield due to less soil fertility, organic matter and without addition of organic residue. The best option to solve this problem, initiated experimental work has been launched using by various sources of application. A field experiment involving the use of organic and inorganic sources of nutrition was laid out in a split plot design with combines of organic sources viz. control, farmyard manure and composted pressmud at 20 t ha-1 as major split and mineral fertilizer treatments of full N, N+1/2P, N+3/4P, N+P, N+P+K and 1.25 NP as sub-split. Soil samples were secured from each treatment after the harvest of banana including a composite sample before the conductance of experiment. Application of full N, P2O5 and K2O rates were applied as 500-250-500 kg ha-1 in addition to 10 kg ha-1 ZnSO4.2H2O. The results showed that the increased rates of fertilizer application did not increase soil EC, pH and OM, soil macro and micronutrients compared with organic amendments. In terms of organic application, considering all soil depths (0-15, 15-30, 30-45 and 45-60cm), where maximum soil nutrient occurs, FYM treatment applied at (20 t ha-1) improverd fertility of soil by 49.2, 15.6, 33.3 and 72.2 % increase in organic matter and 45.2, 37.5, 44.4 and 17.6 % increase in Olsen P, 3.9, 3.0, 0.99 and 6.9 % available K, micronutrient increased (38.6, 32.5, 83.8, 16.4 %) in Cu, (61.8, 40.1, 39.9, 40.1 %) in Fe, (17.5, 13.4, 16.2 10.5 %) in Mn and (44.5, 39.8, 34.4, 69.8 %) in Zn over control plot. However, FYM and CPM were showed non-significant values between them. Key words: soil properties, FYM, CPM, INM, organic matter, banana crop
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