Abstract
Two sets of field experiments, one with boron and other with zinc, were conducted at
lal moloaulor ahoroatorizotion of boron or zinc efficient cron oenotunes so that genotynie
when mungbean residue is incorporated to soil. Future research needs to be done on the
appilcatiou aman rice au 1. a Deduotion of 7n ot 1 lro ho¹ in noiblo for T oman rice
added at 2 kg ha¹ for maize with no application for mungbean followed by 2 kg ha Zn
residual effect on the grain yielp gest that zn a be :11 уaan Tho romult gooot thot 7n ahould bo
grain and stover indicating that Zn was involved in protein synthesis. Added Zn had also
The Zn concentration was closely asspositive response of maize (cy. Pacific 984) and rice (BRRI dhan 33) to Zn application.
The maize-mungbean-T.aman rice pattern experiment indicates that there was a clear
mɛize 6 were found to be the most Zn in-responsiye (Zn deficiency tolerant) varieties
varieties. Among the eight varieties under study, the BARI hybrid maize 3 and
thes, nbbrid moizo more cencitive to 7n deficiency comnared to composite
treatment indicating that B had a positive role on protein synthesis Comparing maize
grain crops a, m e) were 11 d mi) шоo morlrodlu influenced develonment of the crops. not on the vegetative growth. The N and B concentrations of crops (mustard and mungbean). Boron had a positive in ce ne rep
1 ko ha¹ to the 1st cron was adequate to oyercome B deficiency of both the 1st and 2nd
while T. aman rice (cv. BRRI dhan 33) remained uninfluenced. Application of boron at
sar gorighe 8) ond munohenn ( BARI mug 5) resnonded sionificantly to B application
Concerning the mustard-mungbean-rice pattern experiment, both mustard (cv. BARIT)
and sarisha were rouna ADT gd bmadoratolu toloront to R deficienси
order: B. nanus > B. campestris > B. juncea, Of the eight varieties tested, BARI sarisha
in their response to B application and varieties of three Brassica species
C.11
RKS Zn & B) & untake for each cropning nattern Mustard yarieties differed widely
was made with respect to the yield & yield components and nutrient concentration (N,
Flooaplain (4 1) naving carcal
Tlsdelim CT7 11) hoin olonrooil uith lo coil B and 7n contents Fvaluation
maize-mungbean-Т. aman rice cropping pattern. The land belongs to High Ganges River
different varieties of maize to zinc application 01 the rate or zinc for tne
aman rice cronping pattern and that of zinc exneriments was to evaluate the response of
to boron application and to determine the dose of boron for the mustard-mungbean-T.
rimonto we to cee the recponse of different varieties of mustard
the Regional Agricultural Research Station (RARS), Jessore during 2002-06. The
Two sets of field experiments, one with boron and other with zinc, were conducted at