STUDIES ON IN-SITU RESOURCE CONSERVATION THROUGH TILLAGE SYSTEMS AND ITS IMPACT ON SOYBEAN PRODUCTIVITY
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Date
2018-08-09
Authors
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Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola, Maharashtra.
Abstract
A field experiment entitled “Studies on in-situ resource conservation through tillage systems and its impact on soybean productivity” was conducted at Research Farm, Department of Agronomy, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola (Maharashtra) during the year 2017-18. Soil was clayey in texture with high amount of potash (346.12 kg ha-1) and moderate in phosphorus (18.57 kg ha-1) and low in nitrogen (212.8kg ha-1),slightly alkaline in nature.
The experiment was laid out in randomized block design with seven tillage treatments replicated three times. The tillage treatments constituted of (1) Zero tillage + PE & PoE application of Herbicides (ZTh), (2) 1Rotavator + PE &PoE application of Herbicide (RTh), (3) 1 Tyne Harrow + 1Rotavator (1TR), (4) 2 Tyne Harrow + 1 Rotavator (2TR), (5) 2 Tyne Harrow + 1 Blade harrow (2TB), (6) 1 Ploughing + 1 Tyne Harrow + 1 Rotavator (PTR), (7) 1 Ploughing + 1 Tyne Harrow + 1 Blade Harrow (PTB). The net plot size was 8.1 m X 5.4 m. Sowing of soybean (var. JS-335) was undertaken on 28th June, 2017. The other intercultivation practices were kept common as recommended, except at ZTh, where no intercultivation was carried out and weeds were controlled by using pre and post emergence herbicides. The rainfall during the crop growth period was 368 mm.
All the soil physical properties i.e. rate of infiltration, soil moisture content, bulk density, porosity, and penetration resistance were significantly improved with very deep tillage consisting of 1 Ploughing + 1 Tyne Harrow + 1 Blade Harrow (PTB).The next best treatment that improved physical properties of soil to some extent was 1 Ploughing + 1 Tyne Harrow + 1 Rotavator (PTR). Shallow and medium deep tillage treatments were found inferior in improving soil physical properties.
The values of plant growth, yield attributes and yield of soybean were significantly increased with tillage treatment of 1 Ploughing + 1 Tyne Harrow + 1 Blade Harrow (PTB) and 1 Ploughing + 1 Tyne Harrow + 1 Rotavator (PTR) as compared to other tillage treatments.
Significantly, highest values of GMR, NMR and BC ratio were recorded by both deep tillage treatments consisting of 1 Ploughing + 1 Tyne Harrow + 1 Blade Harrow (PTB) and 1 Ploughing + 1 Tyne Harrow + 1 Rotavator (PTR) as compared to other tillage treatments.
Description
A field experiment entitled “Studies on in-situ resource conservation through tillage systems and its impact on soybean productivity” was conducted at Research Farm, Department of Agronomy, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola (Maharashtra) during the year 2017-18. The experiment was laid out in randomized block design with seven tillage treatments replicated three times. In this experiment the impact of different tillage systems on major soil physical properties, growth, yield and economics of soybean were observed.
Keywords
Crops, Field Crops, Glycine max, Soybeans, Tillage, Zero Tillage, Harrows, Soil Sciences, Soil Compaction, Soil Density, Soil Conservation, Water Holding Capacity, Infiltration, Soil Hydraulic Conductivity, Soil Porosity, Statistics and experimentation, Experimentation, Field experimentation, Data collection and Experimental design, Blade Harrow, Herbicides, JS-335, Resource Conservation, Ploughing, Rotavator, Tyne Harrow, Randomized Block Design, Gross monetary Returns, Net monetary Returns, Benefit cost ratio,
Citation
SAWARKAR, SHUBHAM DILIPRAO. (2018). Studies on in-situ resource conservation through tillage systems and its impact on soybean productivity. Department of Agronomy, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola. M. Sc. 2018. Print. xiv, 115p. (Unpublished).