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Kerala Agricultural University, Thrissur

The history of agricultural education in Kerala can be traced back to the year 1896 when a scheme was evolved in the erstwhile Travancore State to train a few young men in scientific agriculture at the Demonstration Farm, Karamana, Thiruvananthapuram, presently, the Cropping Systems Research Centre under Kerala Agricultural University. Agriculture was introduced as an optional subject in the middle school classes in the State in 1922 when an Agricultural Middle School was started at Aluva, Ernakulam District. The popularity and usefulness of this school led to the starting of similar institutions at Kottarakkara and Konni in 1928 and 1931 respectively. Agriculture was later introduced as an optional subject for Intermediate Course in 1953. In 1955, the erstwhile Government of Travancore-Cochin started the Agricultural College and Research Institute at Vellayani, Thiruvananthapuram and the College of Veterinary and Animal Sciences at Mannuthy, Thrissur for imparting higher education in agricultural and veterinary sciences, respectively. These institutions were brought under the direct administrative control of the Department of Agriculture and the Department of Animal Husbandry, respectively. With the formation of Kerala State in 1956, these two colleges were affiliated to the University of Kerala. The post-graduate programmes leading to M.Sc. (Ag), M.V.Sc. and Ph.D. degrees were started in 1961, 1962 and 1965 respectively. On the recommendation of the Second National Education Commission (1964-66) headed by Dr. D.S. Kothari, the then Chairman of the University Grants Commission, one Agricultural University in each State was established. The State Agricultural Universities (SAUs) were established in India as an integral part of the National Agricultural Research System to give the much needed impetus to Agriculture Education and Research in the Country. As a result the Kerala Agricultural University (KAU) was established on 24th February 1971 by virtue of the Act 33 of 1971 and started functioning on 1st February 1972. The Kerala Agricultural University is the 15th in the series of the SAUs. In accordance with the provisions of KAU Act of 1971, the Agricultural College and Research Institute at Vellayani, and the College of Veterinary and Animal Sciences, Mannuthy, were brought under the Kerala Agricultural University. In addition, twenty one agricultural and animal husbandry research stations were also transferred to the KAU for taking up research and extension programmes on various crops, animals, birds, etc. During 2011, Kerala Agricultural University was trifurcated into Kerala Veterinary and Animal Sciences University (KVASU), Kerala University of Fisheries and Ocean Studies (KUFOS) and Kerala Agricultural University (KAU). Now the University has seven colleges (four Agriculture, one Agricultural Engineering, one Forestry, one Co-operation Banking & Management), six RARSs, seven KVKs, 15 Research Stations and 16 Research and Extension Units under the faculties of Agriculture, Agricultural Engineering and Forestry. In addition, one Academy on Climate Change Adaptation and one Institute of Agricultural Technology offering M.Sc. (Integrated) Climate Change Adaptation and Diploma in Agricultural Sciences respectively are also functioning in Kerala Agricultural University.

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1978 - 197911980 - 198611
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Subject: Agronomy × Author: KAU × End date: 1986 × Thesis Type: Ph.D ×
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Now showing 1 - 9 of 12
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    ThesisItemOpen Access
    Production potential of two fodder grasses under different management practices
    (Department of Agronomy, College of Agriculture, Vellayani, 1986) Raghavan Pillai, G; KAU; Madhavan Nair, K P
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    ThesisItemOpen Access
    Effect of NPK on seed progeny and air layers in cashew ( Anacardium occidentale L. )
    (Department of agronomy, College of Agriculture Vellayani , Trivandrum, 1985) Harishu Kumar, P; KAU; Sreedharan, C
    An experiment was conducted to assess the "Ef f e c t of NPK fertilisers on seed orogeny and air layers in cashew at Cashew Seed Farm, Shanmtigodu under Central Plantation Crops Research Institute , Regional Station, f i t c a l 574 24 3, during 1982-84. fhe treatments consisted of test ing three le v e ls each of d,? and K on seed . rogen/ i.,d ai r layers Ln cashcv/. r ’ne study revc ile 1 t h . t d i f f e r en t grov.'th oar meter 7 i. e . , he L'jl'it, can>py rolLus, surf ice area, le a f area n ; : ; v/erc influenced by increasing le v e ls of I:PR. f ■ r t i I i. s e r s . [' r/ ii chlorophyl l , to I; il v.ug ir , le.it v; .ter f-,■ n* , in-: sp e c i f ic le if w ight v;ere influenced by » b ,n v/11 i I e n i t rci' p n 11 one i n c i i iset i , , ., ii c * * . I', i r 1 y i'ii s r: u I: i- c ’ i I i r r - • * * in f l o w e r i n g , numbt l r, f ft mi. t e, _ .m ,lg ,■ I ; -I -,l puilr-h t'< t-i.l il 'hoots WC IX ; i ? V i . r ‘ I i I -■ 1 nr r r 1.0,1 b y f.f r » i I i d L >n . t’rmt j;un ii r‘ rc rn> r ri o nl; inrl acc' u b i ^ ici-1 c o n t e n t , ] Lc if ion . /c r | , 7 0 1 1 0 ' J W l ! " l p l Mut v Jupic an 1 IglTt wctr drrrc ir.ecl due to d M M, ion w,lH. V ipol ic .Llon ( ivour* rl nut md P i p d i ' - 1 , 4-r d W- i n ( k c - T l u 1 n - Leaf N v;as increased by NPIC. Lear ? was increased by p and K appl icat ion v/hile i t was reduced by N appl icat ion. Leaf K was reduced by H appl icat ion while i t was increased by ? and K appl icat ion. N appl ication resul ted in an Increase in le a f C i, where as P and K reduced i t . M and K reduced le a f Mg while P had no e f f e c t . M increased lui f Zn while P reduced the same. K had no e f f e c t . Cr i t ical levels in Ic if for M and ? are f ixed at 2.09% and 0.14% respectively. hoot CSC was increased by UP.' f e r t i 1 is ition . .1 application reduc’d organic carbon and P ‘./hale- i t i.nere -Scd ^>oil M, h and oH. P appl ication increased o i l d, K and pH. ‘V. ipol icat ion incr*. ia«_ , roi l H, h and oH wher>- as i c r c r\ v c c r: o i l P • rj ind P f spons r, r*. curvul in«. ar while not as i u ■ esnonrs v m Jincir. rhc od.imuni of U and P r , pc-j/trr ,./y ai re no-. c t ivt 1 y . M ixvv.um income W L. 1. ' - * * r t ' l i - r r l In lie 1 IV- r r . r
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    ThesisItemOpen Access
    Effect of continuous N P K Fertilization on the growth and yield behaviour of coconut with special reference to potash nutrition and its interrelation with other mineral nutrients
    (Department of Agronomy, College of Agriculture, Vellayani, 1985) Pushpangadan, K; KAU; Sadanandan, N
    At the Coconut Research Station , Balaramapuram in Trivandrum District of Kerala State an experiment was laid out in 1964 to assess the growth characters, yield attributes and yield of coconut variety West Coast Tall. The study was further enlarged to include the critical levels of leaf nutrient concentration as related to yield and the soil fertility statusdue to continued NPK fertilization . The treatments consisted of three levels of N, P and K (N-0, 340, and 680 g;P-0, 225 and 450 g and K-0, 450 and 900 g per palm per year). The experiment was laid out in a 3 raise to 3 partially confounded factorial design with two replications. Application of N enhanced the growth characters viz., production of female flowers, percentage fruit set, yield of nuts, weight of nuts, mean thickness and weight of meat, weight of copra and oil percentage. However the effect of N was found to be quadratic at the highest level applied. Application of P although improved the female flower prodcuction, its effect was negative towards copra weight and oil percentage . For the remaining characters studied, the initial level of 225 g per tree per year was found to be adequate.
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    ThesisItemOpen Access
    Agronomic investigations on 'TARO' (Colocasia esculenta L.) variety - Thamarakannan
    (Department of Agronomy, College of Agriculture, Vellayani, 1986) Mohan Kumar, C R; KAU; Sadanandan, N
    In order to standardize the cultural and fertilizer requirement of two (Colocasia esculata) two separate field experiments were conducted during 1983-84 and 1984-85 at the College of Agriculture, Vellayani. The first experiment (Experiment A) with treatments consisting of two sources of planting material (side and mother corn) four spacing (60 x 30, 45 x 45, 60x 45, 60x60 cm) and five sources of mulching (Green leaf, Coconut coir/husk waste, Water hyacinth, black polythene and no mulch) was conducted in asplit plot design. The second experiment (Experiemnt B) was a 3 x 2 partially confounded factorial design with three levels each of nitrogen (40,80,120 kg ha-1), P2O5 (25, 50,75 kg ha-1), K2O (50, 100,150 kg ha-1) and two times of application (two split application of N and K and three split application of N and K) with two replication
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    ThesisItemOpen Access
    Potash nutrition of tapioca (Manihot esculenta Crantz.)
    (Department of Agronomy, College of Agriculture, Vellayani, 1982) Muraleedharan Nair, V; KAU; Sadanandan, N
    An investigation was undertaken at the College of Agriculture, Vellayani and Rice Research Station, Kayamkulam for two years during 1977-79 to study the performance of tapioca (Var. Sree Sahya) under two different agroclimatic conditions. The treatments consisted of three levels of nitrogen (50, 125 and 200 kg N/ha) and three levels of potassium (50,125 and 200 kg K2O/ha) at three times of application. The experiment was laid out in a 3 partially confounded factorial design with two replications.
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    ThesisItemOpen Access
    Ecophysiology of azolla and its management for rice production
    (Department of Agronomy, College of Agriculture, Vellayani, 1985) Alexander, D; KAU; Sadanandan, N
    In order to explore the agronomic potential of azolla for rice production, an investigation entitled 'Ecophysiology of azolla and its management for rice production ' was carried out at the Regional Agricultural Research Station, Pattambi, during the years 1980 to 1984 with the following objectives: (1) To study the influence of environmental conditions on the growth and establishment of azolla. (2) To assess the nutritional requirement of azolla. (3) To find out the time of application and optimum quantity of azolla inoculum required for growing it as an intercrop with rice. (4) To identify the geometry of planting rice favouring the multiplication of azolla in the field.
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    ThesisItemOpen Access
    Studies on the interactive effects of water regimes, weed control treatments and nitrogen levels in direct-seeded rice
    (Faculty of the Post-Graduate School, Indian Agricultural Research Institute, New Delhi, 1984) Mohan Kumar, B; KAU; Singh, K N
    Field and green house experiments were conducted in the Division of Agronomy, Indian Agricultural Research Institute, New Delhi, during 1982 and 1983 to study the interaction of nitrogen x weed control x water regimes, on the growth, productivity and nutrient use pattern of direct seeded rice. The treatments in the field trails consisted of 4 levels of nitrogen (0, 50, 100 and 150 kg N ha-1). 3 weed control treatments (weedy check, butachlor, bentazone in 1982 and bentazone plus propanil in 1983) and 2 water regimes (continuously and intermittently flooded). The experiment was laid out in a split plot design, replicated thrice. The variables in the green house experiment were 2 rice cultivars (Pusa 33, drought susceptible and Pusa 312, drought tolerant), 3 nitrogen levels (0,100 and 200 mg N kg soil-1) and 5 soil moisture regimes (submergence to saturation, 0-0.025 MPa, 0-0.05 MPa, 0-0.075 MPa 0-0.10 MPa soil moisture tension).
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    ThesisItemOpen Access
    Studies on the effect of multiple cropping on soil fertility and crop yields in wet land
    (Department of Agronomy, College of Agriculture, Vellayani, 1978) Sasidhar, V K; KAU; Sadanandan, N
    The problem entitled "Studies on the effect of multiple cropping on soil fertility and crop yields in wet land" was conducted at the College of Agriculture, Vellayani, Trivandrum during the years 1974-76 to assess the effect of five cropping patterns, viz, rice-rice-sweet potato, rice-rice-cowpea, rice-rice-sesamum, rice-rice- groundnut and rice-rice-rice on the various physical and chemical properties of soil and yield of crops and finally to find out the most suitable and efficient cropping pattern. The study revealed that rice-rice-groundnut was the most efficient and suitable cropping pattern for the wet land. The maximum yield per hectare as well as per day was recorded by sweet potato and the minimum by sesamum. While the maximum annual yield was recorded by the cropping pattern rice-rice-sweet potato, the minimum was from the cropping pattern rice-rice-sesamum during both the years. The dry matter production per hectare per year from individual cropping patterns was maximum in rice-rice- sweet potato and minimum in rice-rice-cowpea during the first year and the corresponding rotations were rice-rice- groundnut and rice-rice-sesamum during the second year. The maximum economic returns were obtained from the cropping pattern rice-rice-groundnut during both the years. While the minimum economic returns were obtained from the cropping pattern rice-rice-cowpea during the first year it was from rice-rice-rice during the second year.. Soil fertility studies showed that cropping pattern rice-rice-sweet potato resulted in decrease in bulk density, pH and total nitrogen and increase in water stable aggregates, cation exchange capacity, organic carbon, C : N ratio, extractable phosphorus, exchangeable potash, exchangeable calcium, exchangeable, magnesium, and exchangeable hydrogen. The cropping pattern rice-rice-cowpea resulted in decrease in bulk density, pH, cation exchange capacity, organic carbon, c : 11 ratio, exchangeable calcium and exchangeable magnesium and increase in water stable aggregates, total nitrogen, extractable phosphorus, exchangeable potash and / exchangeable hydrogen. While there was decrease in bulk density, pH and total nitrogen there was increase in cation exchange capacity, organic carbon, G : N ratio, extractable phosphorus, exchangeable potash, exchangeable calcium, exchangeable magnesium and exchangeable hydrogen in the cropping pattern rice-rice-sesamum. The rice-rice-groundnut cropping pattern resulted in decrease in bulk density, pH,cation exchange capacity, organic carbon, G : W ratio and increase in,water stable aggregates, total nitrogen, extractable phosphorus, exchangeable potash, exchangeable calcium, exchangeable magnesium and exchangeable hydrogen. However, cropping pattern rice-rice-rice resulted in increase in bulk density, 0 * N ratio, exchangeable hydrogen and decrease in water stable aggregates, pH, cation exchange capacity, organic carbon, total nitrogen, extractable phosphorus, exchangeable potash, exchangeable calcium and exchangeable magnesium. While virippu rice was most efficient, in utilizing nitrogen for dry matter production, cowpea was least efficient in this regard. The groundnut crop showed maximum efficiency in the utilization of phosphorus and potash for dry matter production. While sesamum was least efficient in the case of phosphorus it was sweet potato in the case of potash. The highest and the lowest protein yields wereobtained during first and second years from the cropping /pattern rice-rice-groundnut and rice-rice-sesamum respectively
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    ThesisItemOpen Access
    Production potential of cassava (Manlhot esculent a Grants) intercropped in coconut gardens
    (Department of Agronomy, College of Agriculture, Vellayani, 1986) Ramakrishnan Nayar, T V; KAU; Sadanandan, N
    Field experiments were conducted at the coconut Research Station. Balaramapuram during 1983-84 and 1984-85 to study the production potential of cassava varieties Sreevisakham and Malayan-4, intercropped in coconut gardens, as influenced by planting density, growth regulators and different levels of NPK fertilisers. The cassava hybrid Sreevisakham was superior to the popular cultlvar Maiayan-4 in nuirber of nodes plant 1, number of functional leaves plant™1, leaf area index, net assimilation rate, crop growth rates, dry matter production, utilisation index, tuber bulking rate and in fresh tuber yield. For intercropping one hectare of coconut garden in which coconuts are spaced at 7.5 x 7.5 m, cassava plant population of 8000 (spacing 90 x 90 cm) was found to be optimum to produce maximum fresh tuber yield* Cassava plants at higher planting density, were stunted in growth and produced poor quality tubers. The growth regulators cycocel and ethrel though decreased the plant height, could not Influence either the yield attributes or yield and quality of cassava tubers.