Author:
PAL SHARMISTHA,YADAV R P,ARYA S L,K SATHIYA,BHUTIA P L
Abstract
The present study aimed to determine the effect of varying tillage and residue management in a sandy loam soil under maize (Zea mays L.)-wheat (Triticum aestivum L.) sequence. The research was carried out at ICAR- Indian Institute of Soil and Water Conservation, Research Centre, Chandigarh, research farm, located at Panchkula, Haryana, in maize (kharif)-wheat (rabi) cropping sequence during 2009–2017. Six treatments implemented were Conventional tillage (CT); Deep tillage once in three years (DT); Conventional tillage with integrated nutrient management (CT-INM); Conventional tillage with brown manuring in maize + cowpea (1:2) and wheat + pea (4:1) ratio (CT-BM); Conservation tillage (CST) ; Conservation tillage with brown manuring (CST-BM). The compaction level attained under conservation tillage based systems were lower than the corresponding levels in the conventional tillage control. The highest percentage of macro aggregates was found in CST-BM treatment (48%), followed by CST (45%) and CT, DT and CT-INM recorded much lesser macro aggregate (29.3, 28 and 31%). Conventional tillage (CT) reduced macroaggregates with a concomitant increase in microaggregates (<0.25 mm) percentage. The mean soil moisture percentage average in surface (0–15 cm) and sub surface soil (15–30 cm) were found to be higher under DT, CST and CST-BM treatments over CT and CT-INM treatments. In general, the soil moisture was found to be proportional to the amount of biomass added under various treatments. The mean soil available nitrogen were 15.4% and 17.5% higher under CT-BM and CST-BM treatments respectively, over the control (CT).
Publisher
Indian Council of Agricultural Research, Directorate of Knowledge Management in Agriculture
Subject
Agronomy and Crop Science
Reference22 articles.
1. Bhattacharyya R, Kundu S, Ved-Prakash and Gupta H S. 2008. Sustainability under combined application of mineral and organic fertilizers in a rainfed soybean-wheat system of the Indian Himalayas. European Journal of Agronomy 28(1): 33–46.
2. Bhattacharyya R, Ved-Prakash R B, Kundu S, Srivastav A K and Gupta H S. 2009. Soil aggregation and organic matter in a sandy clay loam soil of the Indian Himalayas under different tillage and crop regimes. Agriculture, Ecosystems and Environment. 132: 126–34.
3. Chan K Y, Bowman A and Oates A. 2001. Oxidizable organic carbon fractions and soil quality changes in an oxic paleustalf under different pastures leys. Soil Science 166(1): 61–67.
4. Das T K, Bhattacharyya R, Sudhishri S, Sharma A R, Saharawat Y S, Bandyopadhyay K K, Sepat S, Bana R S, Aggarwal P, Sharma R K, Bhatia A, Singh G, Datta S P, Kar A, Singh B, Singh P, Pathak H, Vyas A K and Jat M L. 2014. Conservation agriculture in an irrigated cotton–wheat system of the western Indo-Gangetic Plains: crop and water productivity and economic profitability. Field Crops Research 158: 24–33.
5. Drummond P E, Christy C D and Lund E D. 2000. Using an automated penetrometer and soil EC probe to characterize the rooting zone. (In) Proceedings of the 5th International Conference on Precision Agriculture, Bloomington, Minnesota, USA, July 16–19 July 2000, pp. 1–9.