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TILLAGE AND RESIDUE MULCHING EFFECT ON PRODUCTIVITY OF MAIZE (ZEA MAYS)–TORIA ( BRASSICA CAMPESTRIS) CROPPING SYSTEM IN FRAGILE ECOSYSTEM OF NORTHEAST INDIAN HIMALAYAS

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Title TILLAGE AND RESIDUE MULCHING EFFECT ON PRODUCTIVITY OF MAIZE (ZEA MAYS)–TORIA ( BRASSICA CAMPESTRIS) CROPPING SYSTEM IN FRAGILE ECOSYSTEM OF NORTHEAST INDIAN HIMALAYAS
Not Available
 
Creator ANUP DAS
P. K. GHOSH,
M. R. VERMA,
G.C.MUNDA
S. V. NGACHAN
D. MANDAL
 
Subject tillage, zea mays, brassica campestris.
 
Description Not Available
The north eastern region (NER) of India receives a high amount of rainfall (2450 mm) both in terms of
intensity and frequency. Most of the precipitation goes waste because of improper conservation measures
and inadequate rainwater harvesting. Growing a second crop during winter (rabi)seasononhillslopes
and uplands without moisture conservation measure is almost impossible. A simple and very low-cost
technique of in situ soil moisture conservation in maize (Zea mays L.)–toria (Brassica campestris L.) system has
been developed using residue of preceding rainy season maize crop and mulching with locally available
weed biomass Ambrosia artemisiifolia. Six residue mulching combinations tested were viz. control, Maize stalk
cover (MSC), MSC + Ambrosia sp. 5 t/ha, MSC + Ambrosia sp. 10 t/ha, MSC + farmyard manure (FYM)
10 t/ha and MSC + Ambrosia sp. 5 t/ha + poultry manure 5 t/ha under zero tillage (ZT) and conventional
tillage (CT) systems. Results showed that in situ residue retention of preceding maize crop along with green
biomass of Ambrosia sp., applied before sowing of toria, maintained optimum soil moisture for good growth
and higher yield of toria. The soil moisture content was consistently higher under residue mulched plots
than that under control. All the residue mulching measures recorded higher crop yield for maize and toria
than those observed under residue removal (control). The productivity of toria was enhanced by about
99%, only due to retention of MSC as mulch. Mulching with MSC + Ambrosia sp. 5 t/ha + poultry manure
5 t/ha recorded the highest seed yield of toria (four-year average: 641 kg/ha), which was 228% and 64%
higher than no mulching (control) and MSC alone. MSC + FYM10 t/ha (568.3 t/ha) and MSC + Ambrosia
sp. 10 t/ha (517.4 t/ha) were found equally effective and produced significantly higher toria yield than that
of control. MSC + Ambrosia mulch 10 t/ha gave the highest net returns and B:C ratio of the maize–toria
system. The overall B:C ratios were better under ZT than CT. Thus, the study indicated that the integrated
management of crop residues and weed biomass (Ambrosia sp.) under ZT created favourable soil moisture
to support double cropping with high yield in hill eco-system of northeastern Indian Himalayas.
Not Available
 
Date 2020-05-27T08:59:40Z
2020-05-27T08:59:40Z
2014-05-30
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/36408
 
Language English
 
Relation Not Available;
 
Publisher Not Available