Yield trends and changes in physico-chemical properties of soil in maize-wheat cropping system under integrated nutrient management

Field Study on Nutrient uptake and Physico – chemical properties of soil influenced by organic and inorganic packages in rice was carried out at Research Cum Instructional Farm IGKV., Raipur (C.G.) during kharif 2010 and 2011. The soil of experimental field was ‘Inceptisols’ (Matasi), which was low in nitrogen, medium in available phosphorus and potassium. The experiment was laid out in randomized block design with three replication. The treatments consisted of Basmati type rice variety viz. Kasturi Comprising organic, inorganic and integrated nutrient management. Treatment T1 (50% RDF + 50% N (CDM), T2 (100% N((1/3 rd each CDM +NC+CCR) T3 (100% N (1/3 rd each CDM + NC + CCR) + Green manure in rice), T4 100% N (1/3 rd each CDM + NC + CCR) +Deep summer ploughing), T5 (50% N(CDM)+RP+PSB+Azos.), T6 (100%N(1/3 rd each CDM+NC+CCR) + Azos.+ PSB) and T7 (100% RDF).among different nutrient management practiceshigher nutrient uptake in grain and straw were observed under treatment T7(100% RDF).followed by T1 (50% RDF + 50% N (CDM) an INM treatment.whereas water uptake was exceeding in100% N applied through 1/3 rd each CDM + NC + CCR + Green manure in rice. Bulk density, pH and EC were also exceeds in T7, except T6 (100% N CDM + NC + CCR + Azos + PSB) which has higher OC.

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Physico-Chemical Properties of Soil and Mineral Composition of Plants as Affected by Fox Nut-Based Cropping Systems

Agropedology ◽

10.47114/j.agroped.2019.j7 ◽

2019 ◽

Vol 29 (1) ◽

Author(s):

I.S. Singh ◽

◽

Manoj Kumar ◽

A.K. Thakur ◽

A.K. Choudhary ◽

...

Keyword(s):

Cropping Systems ◽

Chemical Properties ◽

Cropping System ◽

Available N ◽

System Productivity ◽

Pooled Data ◽

Water Chestnut ◽

Physico Chemical ◽

Euryale Ferox ◽

Properties Of Soil

Foxnut (Euryale ferox Salisb.) is exclusively an aquatic crop and generally grown naturally in non-saline wetland areas having stagnant water. Prolonged submergence in lowlands impedes the cultivation of most field crops except few one such as rice. For enhancing the system productivity, crop diversification technology needs to be adopted in wetland/aquatic ecosystems as well. In present study fox nut-based eight different crop rotations, viz. fox nut-fox nut, fox nut-rice, fox nut-wheat, fox nut-berseem, fox nut-water chestnut, fox nut-rice-wheat, fox nut-rice-berseem and fox nut-water chestnut-berseem were followed consecutively for three years (2012-13 to 2015-16). The pooled data showed that fox nut-water chestnut-berseem cropping system had more organic carbon, available N, P and K to the tune of 25 %, 14.75 %, 26.66 % and 6.80 %, respectively over the fox nut-fox nut cropping system. The soils under fox nut-rice-berseem cropping system had the highest concentration of DTPA Cu (1.82 mg kg-1) and Zn (0.35 mg kg-1). Fox nut and water chestnut retained the highest tissue concentrations of the less soluble Fe and Mn and P, Cu and Zn. The results indicated that adoption of fox nut-water chestnut-berseem cropping system significantly improved the fertility status of soil in the aquatic low land ecosystem.

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