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Response of wetland rice to fertilizer N in a soil amended with cattle, poultry and pig manures
AbstractDuring the period 1984–1986, field experiments were conducted to study the response of wetland rice to N application in a loamy sandy soil amended with cattle (60 kg N ha−1), poultry (80 kg N ha−1) and pig (75 kg N ha−1) manures. In the absence of urea-N, cattle, pig and poultry manures increased the rice grain yield by 37, 43 and 98%, respectively. Rice yield increased linearly with the application of N, whether or not the soil was amended with organic manure. Urea-N equivalents of cattle, pig and poultry manures varied from 21 to 53, 17 to 65 and 50 to 123 kg ha−1, respectively. Apparent recovery in the crop of N from poultry manure varied from 38 to 82% as compared to 51 to 69% from urea and 10 to 25% from cattle and pig manures. Nitrogen in poultry manure mineralized at a faster rate than that of cattle and pig manures. After the harvest of rice, the three organic manures exhibited residual effects in terms of increased soil organic carbon, available P and yield of succeeding crop of wheat.
Response of wetland rice to fertilizer N in a soil amended with cattle, poultry and pig manures
AbstractDuring the period 1984–1986, field experiments were conducted to study the response of wetland rice to N application in a loamy sandy soil amended with cattle (60 kg N ha−1), poultry (80 kg N ha−1) and pig (75 kg N ha−1) manures. In the absence of urea-N, cattle, pig and poultry manures increased the rice grain yield by 37, 43 and 98%, respectively. Rice yield increased linearly with the application of N, whether or not the soil was amended with organic manure. Urea-N equivalents of cattle, pig and poultry manures varied from 21 to 53, 17 to 65 and 50 to 123 kg ha−1, respectively. Apparent recovery in the crop of N from poultry manure varied from 38 to 82% as compared to 51 to 69% from urea and 10 to 25% from cattle and pig manures. Nitrogen in poultry manure mineralized at a faster rate than that of cattle and pig manures. After the harvest of rice, the three organic manures exhibited residual effects in terms of increased soil organic carbon, available P and yield of succeeding crop of wheat.
Response of wetland rice to fertilizer N in a soil amended with cattle, poultry and pig manures
Maskina, M.S. (author) / Yadvinder-Singh (author) / Bijay-Singh (author)
Biological Wastes ; 26 ; 1-8
1988-02-04
8 pages
Article (Journal)
Electronic Resource
English
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