Role of Fortified Organic Manures in Fertility Restoration of Coastal Problem Soil | Chapter 7 | Emerging Issues in Agricultural Sciences Vol. 1

 The unique characteristic of coastal agroecosystems is soils that are governed by salinity, sodicity, sandy character, and nutrient deficiency. Poor yield achievement is caused by extreme pH and salinity, which limit the chance of plant nutrients, specifically micronutrients. Coastal regions have a money of organic materials that maybe fortified accompanying nutrients to boost fiber content and efficiency, that improves the efficacy of the process of replacing soil fertility. Pot and field experiments were attended in coastal soil accompanying the aim of evaluating the impact of defended organic manures on physicochemical traits, nutrient availability, and crop yield. In an process of early development experiment, coastal salty-sodic soil having an primary pH-8.88 and EC-2.16 dS m-1, the treatments containing Control, ZnSO4 fortification @ 75%, 100%, and 125%,  Fe SO4 reinforcement  @75%, 100%, and 125%,  and ZnSO4  + FeSO4 fortification @ 75%, 100%, and 125%, as main treatment and control, FYM, Coir core, Casuarina needles and Green leaf fertilizer as subplot treatment were copied thrice in a Factorial Completely Randomized Design (FCRD). The experiment findings displayed that the application of FeSO4 + ZnSO4 improved green leaf manure and coir pith considerably increased the chance of major and micronutrients in the soil while abating salinity and sodicity. A field experiment was conducted accompanying the objective to find out the effect of basic manure fortified accompanying micronutrients viz., ZnSO4 and FeSO4 on the tumor and yield of rice in marshy saline soil. The situations were T1–Recommended level NPK, T2 –NPK + ZnSO4 + FeSO4 @ 25 Kg ha-1 , T3 – NPK + Green manure fortified ZnSO4 + FeSO4 @ 75% RL, T4 – NPK + Green fertilizer fortified ZnSO4 + FeSO4 @ 100 % RL, T5 – NPK + Green fertilizer fortified ZnSO4 + FeSO4 @ 125% RL, T6 – NPK + Coir core fortified ZnSO4 + FeSO4 @ 75% RL, T7 – NPK + Coir core fortified ZnSO4 + FeSO4 @ 100% RL and T8 – NPK + Coir core fortified ZnSO4 + FeSO4 @ 125% RL. The findings manifested that rice progress and yield characteristics were considerably improved by minor element-fortified produce green leaf manure as compared to different treatments. In the seaside region, about 50% of the soil is ammophilous with weak texture, reduced CEC, organic matter, and low levels of micronutrients. A cauldron experiment was conducted utilising seaside sandy soil bearing low N, P, K, Zn, and B rank with the aim of judging the effects of various organics linked with micronutrients on the progress, yield, and nutrient rude answer of groundnut in marshy soil.The treatment schedule were T1-Absolute control, T2- 100% recommended NPK, T3-T2+ ZnSO4 25 kg ha-1+ Borax @ 10 kg ha-1. T4- T2+Zn+B+ Composted coirpith @ 10 t ha-1, T5 - T2 + Zn + B + Humic acid @ 20 kg ha-1 and T6- T2 + Zn + B + Composted coirpith and Humic acid. The results disclosed that the combined use of Zn + B along with Composted Coir Pith and Humic acid considerably increased the development and yield of the groundnut besides growing the soil available nutrients.

Author(s) Details:

R. Singaravel,
Department of Soil Science and Agriculture Chemistry, Faculty of Agriculture, Annamalai University, Annamalai Nagar –608002, India.

V. Prasath,
Department of Soil Science and Agriculture Chemistry, Faculty of Agriculture, Annamalai University, Annamalai Nagar –608002, India.

S. Kamaraj,
Department of Soil Science and Agriculture Chemistry, Faculty of Agriculture, Annamalai University, Annamalai Nagar –608002, India.

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