1. KAUTIR (Kerala Agricultural University Theses Information and Retrieval)

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    Response of rice to application of micronutrients
    (Department of Soil Science and Agricultural Chemistry, College of Horticulture, Vellanikkara, 1992) Muralidharan, P; Jose, A I
    A field experiment was conducted to study the response of rice to application of secondary and micronutrients during the first and second crop seasons of 1991. The experiment was conducted at the agricultural Research Station, Mannuthy using rice variety Jyothi and the soil was sandy clay loam in texture. The treatments consisted of the different micronutrients (Zn, Cu, Mn, B and Mo), magnesium, sulphur, a combination of the above said nutrients and stanes Microfood, a micronutrient formulation, in addition to the control with no micronutrients. Application of N, P and K was done uniformly in all the treatments. Soil and plant samples were collected at the maximum tillering, flowering and harvesting stages of the crop for the determination of uptake and availability of nutrients, pH and specific conductance. The continued effect of the application of micronutrient was studied by repeating the experiment in the second crop season with the same set of treatments applied to the same plots. Observations on the morphological and yield characters and yields of grain and straw were recorded in both the seasons of crop growth.
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    Deficiency symptoms of mineral nutrients in clove (Syzygium aromaticum (L.) Merr. and Perry).
    (Department of Plantation Crops and Spices, College of Horticulture, Vellanikkara, 1989) Nazeem, P A; Sivaraman Nair, P C
    Experiments were conducted at the College of Horticulture on nutritional aspects of clove, to study the nutrient deficiency symptoms as well as the distribution pattern of nutrients in starved clove plants. The deficiency symptoms were induced in clove seedlings in sand culture. The distribution pattern of P, S (anions) and Ca (cation) were studied in the nutrient-starved seedlings employing radio isotopes. Besides, the annual nutrient removal and the seasonal fluctuations in the foliar nutrient concentration were studied in bearing clove trees. Older leaves were the first to exhibit 'hunger signs' due to the stress induced by N, P, K and Mg starvation whereas the symptoms, were manifested on the younger growth due to deficiency of Ca, S, Fe, Mn, Cu, Zn and B. General yellowing of the older leaves and early defoliation were the symptoms expressed by N-starved plants. Phosphorus stress resulted in small brownish spots to appear on older leaves of clove seedlings which later coalesced to form necrotic patches.
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    Studies on a manure supplement containing secondary and trace elements prepared from sea water (Sagar) on the growth, yield, quality and absorption of nutrients by rice
    (Division of Agricultural Chemistry, College of Agriculture, Vellayani, 1975) Chinnamma, N P; Money, N S
    A field experiment was conducted to assess the effect of application of Sagar, a manure supplement prepared from the sea water on the growth, yield and quality of rice and absorption of nutrients from soil. The result obtained are summarised below. 1) Application of NPK increased significantly all the growth characters and these characters were increased steadily with increase in the levels of NPK. Sagar application increased considerably the number of tillers and the number of productive tillers per plant.
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    Response of bhindi (abelmoschus esculentus L. moench) to fertigation and foliar nutrition in red loam soil of Kasaragod
    (Department of Soil Science and Agricultural Chemistry, College of Agriculture, Padannakkad, 2018) Ashwini, B N; Binitha, N K
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    Flux and dynamics of iron and aluminium in wetlands of Kuttanad and its management for rice (Oryza sativa L.)
    (Department of Soil Science and Agricultural Chemistry, College of Agriculture, Padannakkad, 2017) Ebimol, N L; Suresh, P R
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    Silicon, boron and zinc nutrition of bitter gourd (Momordica charantia L.) var. preethi
    (Department of plant soil science and agricultural chemistry, Padannakkad, 2015) Mohammed, Shahid Salam C H; Suresh, P R