00313 a2200109 4500020001500000082001400015100001400029245005700043260004000100300003000140650003300170 a8189729233 a631.6 SHA aSharma,P. aAgricultural Water Management /cedited by P. Sharma aNew Delhi:cGene tech books,b2007. avi,302p. :bill. 'c25 cm awater management-agriculture