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Anand Agricultural University, Anand

Anand Agricultural University (AAU) was established in 2004 at Anand with the support of the Government of Gujarat, Act No.(Guj 5 of 2004) dated April 29, 2004. Caved out of the erstwhile Gujarat Agricultural University (GAU), the dream institution of Sardar Vallabhbhai Patel and Dr. K. M. Munshi, the AAU was set up to provide support to the farming community in three facets namely education, research and extension activities in Agriculture, Horticulture Engineering, product Processing and Home Science. At present there seven Colleges, seventeen Research Centers and six Extension Education Institute working in nine districts of Gujarat namely Ahmedabad, Anand, Dahod, Kheda, Panchmahal, Vadodara, Mahisagar, Botad and Chhotaudepur AAU's activities have expanded to span newer commodity sectors such as soil health card, bio-diesel, medicinal plants apart from the mandatory ones like rice, maize, tobacco, vegetable crops, fruit crops, forage crops, animal breeding, nutrition and dairy products etc. the core of AAU's operating philosophy however, continues to create the partnership between the rural people and committed academic as the basic for sustainable rural development. In pursuing its various programmes AAU's overall mission is to promote sustainable growth and economic independence in rural society. AAU aims to do this through education, research and extension education. Thus, AAU works towards the empowerment of the farmers.

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Subject: Soil Science and Agriculture Chemistry × Author: D.H. Desai × End date: 2010 × Start date: 2000 ×
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    ThesisItemOpen Access
    EFFECT OF MANURES AND NITROGEN LEVELS ON SOIL PROPERTIES, PRODUCTIVITY AND QUALITY OF BIDI TOBACCO CV. GT-9 GROWN ON Typic ustochrept
    (AAU, Anand, 2007) D.H. Desai; Dr J.C. Patel
    The investigation was carried out under middle Gujarat agroclimatic condition at the Bidi Tobacco Research Station, Anand during the years 2003-04 and 2004-05 on loamy sand soil at different two sites viz., upland light soil referred to as ‘light soil’ and low land light soil referred to as ‘lowland’ with a view to study the productivity and quality of newly released Bidi Tobacco cv. GT-9 as well as soil properties as influenced by manures and nitrogen levels. The low land area was chosen to compare with upland as this variety has been reported to perform better in low land condition of soils in farmers’ fields. The experiments comprised of combinations of A - main plot: organic manure (i) No organic manure (M1), (ii) Green manuring with sunn hemp (M2), (iii) FYM @ 10 t ha-1 (M3) and (iv) Castor Cake @ 1 t ha-1 (M4) and B - Sub Plot: Three levels of nitrogen [180(N1), 220(N2) and 260(N3) kg ha-1], where nitrogen in each treatment was given through ammonium sulphate (25%) and urea (75%). Topping was done at 20 leaves. The experiment was laid out in a split plot design with four replications. Based on pooled results of both the experimental sites, there was significant yield improvement under green manuring with sunn hemp (M2), FYM @ 10 t ha-1 (M3) and Castor cake @ 1 t ha-1 (M4) over (M1) no organic manure. The per cent increase in the cured leaf yield due to M2, M3 and M4 over the control (1734kg ha-1) in the ‘light soil’ was 26.6, 25.1 and 15.3, respectively. The corresponding figures for the “low land” were 15.8%, 9.2% and 11.7% respectively, the yield due to control being 2249kg ha-1. Between the two sites, lowland soil gave (2605kg ha-1) nearly 18.7 per cent higher cured leaf yield than light soil (2195kg ha-1). However, no specific reason could be found. The effect of different levels of nitrogen on cured leaf yield as well as yield attributing characters was not significant under both the soil conditions. So, minimum dose of nitrogen (180 kg ha-1) could be the optimum. The cured leaf samples were analyzed for quality characters (total-N, nicotine, reducing sugars, chloride, total carbonyl, total volatile acids and bases as well as TSNA (Tobacco specific nitrosoamines). In general, nitrogen and nicotine contents were higher with M3 and reducing sugar content was lower with M4.Other quality parameters were favourably influenced or not significantly influenced by one or the other manure treatments but none of the treatment had an adverse effect. Same thing was true for N levels and M x N interaction. The influence of manures and nitrogen levels was also studied on some physico-chemical and biological properties of soils. Observations on bulk density, water holding capacity, pH, EC, organic carbon, available P, K, S and Zn and microbial biomass carbon were recorded. While favourable influence of one or the other treatment (M, N or M x N) on the soil properties was observed, none of the manure studied had adverse effect. No single manure could be attributed as better than others based on their effect on soil properties. From the results of the present investigation, it may be concluded that any one of the three manures tested in the study i.e. FYM @ 10 t ha-1, manuring of sunn hemp or castor cake@ 1t ha-1 along with 180kg N ha-1 can be adopted for maintaining productivity and quality of bidi tobacco cv. GT- 9 as well as fertility of Typic Ustochrept (Inceptisol) soil (preferably ‘low land’) of middle Gujarat looking into the availability and economics at the village level.