Thumbnail Image

Theses

Browse

1963 - 196410
Reset filters
Subject: Agronomy × Author: KAU × End date: 1964 ×
Reset filters

Search Results

Now showing 1 - 9 of 10
  • Thumbnail Image
    ThesisItemOpen Access
    Comparative studies on the fixation of nitrogen by certain common legumes
    (Division of Agronomy, Agricultural college & reseach institute Vellayani, Trivandrum, 1963) Rose, H L; KAU; Madhavan Nair, K
  • Thumbnail Image
    ThesisItemOpen Access
    Effect of irrigation frequencies and mulches on the yield of summer cholam (Sorghum vulgare Pers.)
    (Regional Post Graduate Training Centre, Agricultural College and Research Institute, Coimbatore, 1963) Abraham Jacob, T; KAU; Mariakulandai, A
    An experiment was conducted to find out the relative efficiency of three different moisture regimes, due to irrigation frequencies, at seven, fourteen and twenty one days, and three types of mulching viz., dust, trash and polythene mulches. The modifying effect of the mulches on soil conditions and crop growth was studied, to assess whether irrigation requirements could be reduced without deterioration in yield. The moisture regime had significantly increased the height of plants and length of earheads, while it had no influence on other yield attributes. Length of earhead, breadth of earhead and diameter of peduncle were significantly increased by the mulches.
  • Thumbnail Image
    ThesisItemOpen Access
    Effect of application of phosphate to legumes on the growth and yield of the succeeding ragi crop (Eleusine coracana)
    (Division of Agronomy, Agricultural College and Research Institute, Vellayani, 1964) Ittyaverah, P J; KAU; George, C M
    An investigation was carried out to study the response of three common leguminous green manure crops of this State viz. Seabania speciosa, Crotalaria juncea and Crotalaria striata to different doses of P2O5 and their comparative residual effect on the succeeding ragi crop. The experiment was laid out in the farm, attached to the Agricultural College and Research Institute, Vellayani. Phosphate was applied at three levels viz. 0,20 and 40 lb. per acre. This was applied directly to the ragi crop, and also indirectly through the preceeding green manure crops. A uniform basal dose of potash (40 lb. K2O per acre) was applied directly to ragi in all the treatments.
  • Thumbnail Image
    ThesisItemOpen Access
    Effect of lime and potash on the yield and quality of groundnut (Arachis hypogaea Linn) in the Red Loam soils of Kerala State
    (Division of Agronomy, Agricultural College and Research Institute, Vellayani, 1964) Veeraraghavan, P G; KAU; Madhavan Nair, K
    A trial was laid out in the Agricultural College Farm, Vellayani, to study the effect of graded doses of lime and potash over a basal dose 10 lb. N and 20 lb. P2O5 on the yield and quality attributes of TMV2 (bunchy type) groundnut. The soil in which the experiment was carried out, was a red loam characterised by very poor potash and lime status. Three levels of potash at 25 lb., 50 lb. and 75 lb. K2O alone per acre and in combination with three levels of lime at 0 lb., 750 lb. and 1500 lb. per acre, were the treatments adopted for the investigation.
  • Thumbnail Image
    ThesisItemOpen Access
    Investigatins on turmeric in relation to N P K fertilization and rhizosphere bacterial population
    (Division of Agronomy, Agricultural College & Research Institute, Vellayani, 1964) Chellappan Nair, P K; KAU; Madhavan Nair, K
  • Thumbnail Image
    ThesisItemOpen Access
    Growth inhibition in onion (Allium cepa, L.) by radiation from monazite sand
    (Division of Agricultural Botany, Agricultural Botany, Agricultural College & Research Institute, Vellayani, 1963) Vijayan, P K; KAU
  • Thumbnail Image
    ThesisItemOpen Access
    Investigations on the possible relationship fields in Kerala State between the nutritional status of soils and the incidence of Bunchy top disease of Bananas (Musa species)
    (Division of Agronomy, Agricultural College & Research Institute, Vellayani, 1963) Damodaran Nambiar, P K; KAU; Nair, C. K. N
    Banana plays a very decisive role in the economy of the country. This is more so in the case of Kerala which commands the largest acreage under this crop. Such an economic crop is threatned with annihilation by the deadly disease "Bunchy Top" and the modest estimate of the annual loss is calculated to be about six crores of rupees.
  • Thumbnail Image
    ThesisItemOpen Access
    Response of Co.7 Ragi (Eleusine coracana) to phosphate and potash
    (Regional Post Graduate Training Centre, Agricultural College and Research Institute, Coimbatore, 1963) Ramakrishnan Nair, K; KAU
    With a view to study the effect of graded doses of P2 O5 and K2O on the yield potential of popular high fertility Ragi, strain Co.7 field experiment was laid out in the Central farm, Agricultural College and Research Institute, Coimbatore during 1962-63(February). Three levels of P2O5 and K2O at 0 to 20 lb and 40 lb, alone and in combination with one level of nitrogen at 60 over a basal dressing of five tons of farm yard manure was found by analysis to have 0.38 percent P2O5 AND 0.22 percent K2O supplying 43 lb of P2O5 and 25 lb of K2O per acre.
  • Thumbnail Image
    ThesisItemOpen Access
    Investigations on the effect of foliar application of nitrogenous fertilizers on chewing tobacco (Nicotiana tabaccum Linn)
    (Division of Agronomy, Agricultural College and Research Institute, Vellayani, 1963) Sukumaran, K M; KAU; Nair, C K N