EFFECT OF TREE LOPPING INTENSITIES AND ORGANIC MANURES ON GROWTH AND YIELD PERFORMANCE OF MAIZE UNDER MULBERRY BASED AGROFORESTRY SYSTEM
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Date
2019-08
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UHF,NAUNI
Abstract
ABSTRACT
The present investigation entitled “Effect of tree lopping intensities and organic manures on
growth and yield performance of maize under mulberry based agroforestry system” was carried out at the
experimental farm of Department of Silviculture and Agroforestry, Dr. Y.S. Parmar University of Horticulture
and Forestry, Nauni, Solan (H.P.) during 2018-2019. The experiment was designed with split plot design to
analyse the impact of tree lopping intensities T0 (No lopping), T1 (25% lopping) T2 (50 % lopping) and T3(75%
lopping) with four organic manures S0 (No manure), S1 (FYM), S2 (Jeevamruth) and S3 (Vermicompost) on
growth and yield performance of maize under mulberry based agroforestry system. The study revealed that both
tree lopping intensity and organic manure application had a significant effect on growth and yield parameters of
maize crop. Among different lopping intensities T3 (75% lopping) attained maximum plant height at harvest
(2.06m), number of leaves per plant (15.70), cob /spike length (14.50 cm), cob diameter (42.94 mm), number of
seeds per cob (429.5), stemdiameter (1.93 cm), grain yield per plant (121.45 g), grain yield per plot (18.52 kg),
grain yield per ha (23.03 qtl/ha), 1000 grain weight (213.22 g), dry matter production per plant (316.79 g),
stover yield per plant (313.52 kg), stover yield per plot (47.95 kg), stover yield per ha (59.62 qtl/ha) and
minimum number of days taken to flowering (64.6 days). Among different organic manures the treatment S3
(Vermicompost) attaining maximum plant height at harvest (2.06 m) number of leaves per plant (15.45), cob
/spike length (14.68 cm), cob diameter (42.48 mm), number of seeds per cob (438.0), stem diameter (1.90cm),
grain yield per plant (126.53g), grain yield per plot (19.69 kg), grain yield per ha (24.52 qtl/ha), 1000 grain
weight (211.93 g), dry matter production per plant (323.55 g), stover yield per plant (322.55 kg), stover yield
per plot (50.28 kg), stover yield per ha (62.64 qtl/ha) and minimum number of days taken to flowering (64.3
days) and the combination T3S3 (75% lopping intensity + Vermicompost) recording the best results. Soil
physico-chemical properties were improved from initial values to after crop harvest under agroforestry system
due to presence of canopy and leaf fall whereas lopping has not shown significant effect on some of soil
properties. The availability of nutrients was high, when applied with organic manures in agroforestry system.
The benefit cost ratio of growing maize with mulberry ranged from 0.7 to 4.7 with tree lopping of 75% resulting
in better economic results compared to other lopping intensities. From the study, it is concluded that integrating
maize with Morus alba L offers an excellent opportunity for diversification and high income generating when
trees are lopped successfully (75%) and manure treatment S2(Jeevamruth) is suggested as cost effective nutrient
module for getting maximum benefits from maize under mulberry based agroforestry system on sustainable
basis with good soil health.
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