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21.
Studies on the economy of nitrogen and phophorous through farmyard manure in rice-wheat rotation by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Ludhiana P.A.U. 1979
Availability: Items available for reference: Mohinder Singh Randhawa Library: Not for loan (1)Location, call number: T 631.861 G36S .

22.
Effect of soil moistures regime and depth of nitrogen placement on root growth, yield and water and nitrogen uptake of wheat by
Edition: Soil Science
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Ludhiana PAU 1979
Availability: Items available for reference: Mohinder Singh Randhawa Library: Not for loan (1)Location, call number: T 631.84 B51E .

23.
Losses of mineral nitrogen over the winter in chernozemic and luvisolic soils by
Edition: University of Alberta
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: University of Alberta 1978
Availability: Items available for reference: Mohinder Singh Randhawa Library: Not for loan (1)Location, call number: T 631.84 M29L .

24.
Investigations on the time of nitrogen application to maize (Zea mays L.) by
Edition: COA
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Ludhiana P. A. U 1981
Availability: Items available for reference: Mohinder Singh Randhawa Library: Not for loan (2)Location, call number: T 633.15 Y-1I , ...

25.
Study of symbiotic nitrogen fixation with rhizobia mutants by
Edition: Microbiology
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Ludhiana PAU 1980
Availability: Items available for reference: Mohinder Singh Randhawa Library: Not for loan (1)Location, call number: T 631.847 K11S .

26.
Nitrogen management for maize in coarse textured soils by
Edition: COA
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Ludhiana P.A.U 1981
Availability: Items available for reference: Mohinder Singh Randhawa Library: Not for loan (2)Location, call number: T 633.15 P11N , ...

27.
Effect of nitrogen and plant population levels on the yield and quality of maize cultivars by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Ludhiana 1982
Availability: Items available for reference: Mohinder Singh Randhawa Library: Not for loan (2)Location, call number: 633.15 S40E , ...

28.
Efficiency of slow-release nitrogen fertilizers in submerged soils by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Ludhiana 1982
Availability: Items available for reference: Mohinder Singh Randhawa Library: Not for loan (2)Location, call number: 631.84 B79E , ...

29.
Release and movement of nitrogen from urea in flooded soil by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Ludhiana 1983
Availability: Items available for reference: Mohinder Singh Randhawa Library: Not for loan (2)Location, call number: 631.841 K14R , ...

30.
Effect of nitrogen application and planting dates on radish (Raphanus sativus L) seed production by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Ludhiana 1984
Availability: Items available for reference: Mohinder Singh Randhawa Library: Not for loan (2)Location, call number: 635.152 1 G96E , ...

31.
Nitrogen use efficency in relation to control of wild oats (Avena ludovicana Dur.) in wheat (Triticum aestivum L.) by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Ludhiana 1984
Availability: Items available for reference: Mohinder Singh Randhawa Library: Not for loan (2)Location, call number: 633.119 58 S94N , ...

32.
Studies on nitrogen uptake in grapevines (V. Vinifera L.) Cv. Perlette by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Ludhiana 1985
Availability: Items available for reference: Mohinder Singh Randhawa Library: Not for loan (2)Location, call number: 634.8 J35S , ...

33.
Effect of nitrogen rates and timing of last irrigation on the growth and yield of cotton (Gossypium arboreum L.) by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Ludhiana 1985
Availability: Items available for reference: Mohinder Singh Randhawa Library: Not for loan (2)Location, call number: 633.51 S33E , ...

34.
Predictability of soil nitrogen availability to rice with chemical tests by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Ludhiana 1985
Availability: Items available for reference: Mohinder Singh Randhawa Library: Not for loan (2)Location, call number: 633.18 G96P , ...

35.
Studies on the effect of different levels of nitrogen and spacing on the economic characters of sweet pepper (Capsicum annuum L.) by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Ludhiana 1985
Availability: Items available for reference: Mohinder Singh Randhawa Library: Not for loan (2)Location, call number: 635.643 Z-8S , ...

36.
Effect of different levels of nitrogen and dates of transplanting on the incidence of diseases of paddy in Punjab by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Ludhiana 1985
Availability: Items available for reference: Mohinder Singh Randhawa Library: Not for loan (2)Location, call number: 633.189 N25E , ...

37.
Evaluation of flooding induced damage in maize and its retrieval through supplemental nitrogen by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Ludhiana 1986
Availability: Items available for reference: Mohinder Singh Randhawa Library: Not for loan (2)Location, call number: 633.159 17 A27E , ...

38.
Nitrogen and phosphorus : food production, waste and the environment. Report of an interdisciplinary research project by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Ann Arbor, U.S. Ann Arbor Science 1975
Availability: Items available for loan: Mohinder Singh Randhawa Library (2)Location, call number: 631.84 P69N , ...

39.
Nitrogen-15 in soil-plant studies: proceedings Series: Panel proceedings series
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Vienna 1971
Availability: Items available for loan: Mohinder Singh Randhawa Library (1)Location, call number: 631.84 R39N .

40.
Nitrogen in the environment by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: N.Y. 1978
Availability: Items available for loan: Mohinder Singh Randhawa Library (2)Location, call number: 631.84 N60N , ...

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