Effect of fertilizers on the production potential of different crop sequences in arid regions
DOI:
https://doi.org/10.59797/ija.v41i2.3638Keywords:
Abstract
A field experiment aimed at optimizing fertilizer use in different crop sequences, was conducted during 1991-92 and 1992-93 at Mandor (Jodhpur). Double-crop sequences recorded higher annual productivity and net retum over monocrops. Pearlmillet [Pennisehrm glaucum (L.) R. Br. emend. Stuntz.1-cumin (Cuminurn cyminum L.) was found more remunerative but less sustainable compared with pearlmillet-Indian mustard [Brassica juncea (L.) Czemj. & Cosson] in view of higher cost and risk involved in cumin cultivation. All the double crop sequences and wheat (Triticum aesiivum L. emend. Fiori & Paol.) grown after fallow responded to 100% of recommended fertilizer level (RFL). Additional manuring with farmyard manure (FYM) @ 5 tonnesha in 91 beyond 50% of RFL improved yield of double crops for 3 consecutive seasons. Mustard and cumin grown as monocrops required to be fertilized up to 50% of RFL and additional fertilization (organic or inorganic) did not bring about improvement in productivity any further.References
Effect of fertilizers on the production potential of different crop sequences in arid regions
RAJENDRA S. YADAV AM) B. L. POONlA
Agricultural Research Station, Rajasthan Agriculture University, Mandor 342 304
Received: August 1994
A field experiment aimed at optimizing fertilizer use in different crop sequences, was conducted during 1991-92 and 1992-93 at Mandor (Jodhpur). Double-crop sequences recorded higher annual productivity and net retum over monocrops. Pearlmillet [Pennisehrm glaucum (L.) R. Br. emend. Stuntz.1-cumin (Cuminurn cyminum L.) was found more remunerative but less sustainable compared with pearlmillet-Indian mustard [Brassica juncea (L.) Czemj. & Cosson] in view of higher cost and risk involved in cumin cultivation. All the double crop sequences and wheat (Triticum aesiivum L. emend. Fiori & Paol.) grown after fallow responded to 100% of recommended fertilizer level (RFL). Additional manuring with farmyard manure (FYM) @ 5 tonnesha in 91 beyond 50% of RFL improved yield of double crops for 3 consecutive seasons. Mustard and cumin grown as monocrops required to be fertilized up to 50% of RFL and additional fertilization (organic or inorganic) did not bring about improvement in productivity any further.
Many crop sequences involving pearlmillet [Pennisetum glaucum (L.) R. Br. emend. Stuntz] or fallow in rainy season (kharzfl and Indian mustard [Brassica juncea (L.) Czernj. & Cosson], cumin (Cuminum cyminum L.) and wheat (Triticum aestivum
L. emend. Fiori & Paol.) in winter season (rabi) are grown by cultivators under irri- gated conditions in the arid regions of Rajasthan. Though sufficient research work has been done in determining fertilization schedule of these crops grown individually (Khan et al., 1979 for pearlmillet
