1. KAUTIR (Kerala Agricultural University Theses Information and Retrieval)
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Item Agroforestry measures for soil conservation in hill slope(Department of Agronomy, College of Horticulture, Vellanikkara, 1989) Ali, P; Sreedharan, CAn experiment on 'Agroforestry measures for soil conservation in hill slope' was conducted at the Instructional Farm, College of Horticulture, Vellanikkara for a period of one year from June 1987 to May 1988. The main objectives of the experiment were to quantify the run-off, soil and nutrient losses as influenced by different agroforestry practices and to evolve economically and ecologically viable agroforestry measures for soil conservationItem Evaluation of promising strawberry (Fragaria x ananassa Duch.) varieties for Wayanad(Department of Fruit Science, College of Horticulture Vellanikkara, 2017) Muhammed Aslam; Ajith Kumar, KItem Microsite variations of okra [Abelmoschus esculentus (L.) Moench.] under different weed management practices(Department of Agronomy, College of Horticulture, Vellanikkara, 2017) Shamla, K; Sindhu, P VItem Rhizosphere management for higher root production in ashwagandha (Withania somnifera L. Dunal)(Deparment of Agronomy, College of Agriculture, Padannakkad, 2017) Ashiba, A; Anilkumar, A SItem Tillage and water saving techniques for black gram in rice fallows(Department of Agronomy, College of Horticulture, Vellanikkara, 2017) Aisha Mol, P B; Latha, AItem Influence of weed management practices on the soil quality attributes of ultisol(Department of Soil Science and Agricultural Chemistry, College of Horticulture, Vellanikkara, 2017) Shridhar, N; Durga Devi, K MItem Effect of soil moisture stress on growth and yield of banana cv. Nendran(Department of Agronomy, College of Horticulture, Vellanikkara, 1989) Jessy, M D; Balakrishna Pillai, PItem Mulching for soil quality, climate stress mitigation and crop productivity in okra(Academy of Climate Change Education and Research Vellanikkara, 2016) Anjali Mohan; Usha, K EGlobal warming and climate change is the greatest concern of mankind in 21st century. Under changing climatic scenarios crop failures, reduction in yields, reduction in quality and increasing pest and disease problems are common and they render the vegetable cultivation unprofitable. Various crop management practices such as mulching and the use of shelters and raised beds help to conserve soil moisture, prevent soil degradation, and protect vegetables from heavy rains, high temperatures and flooding. These protective coverings reduce evaporation, moderate the soil temperature and reduce soil run-off and erosion. A study entitled “Mulching for soil quality, climate stress mitigation and crop productivity in okra” was carried out at the Academy of Climate Change Education and Research, Kerala Agricultural University, Vellanikkara, Thrissur during 2015-2016. The experiment consisted of 9 treatments. Mulching with leaf litter, paddy straw, coir pith, black and white embossed sheet, black and silver embossed sheet, newspaper, coir chips, un mulched control and live mulch (cow pea). The biometric and phenological parameters were significantly influenced by the treatments. The plots mulched with plastic sheets showed early germination and higher germination percentage. The highest plant height and maximum number of leaves recorded were in plots mulched with black and silver embossed sheet. Plants mulched with paddy straw flowered earlier (38.33 DAS) and the highest number of flowers (25.66) was recorded in plots mulched with black and silver embossed sheet. In general, mulching with plastic sheets promoted early harvesting and highest crop duration. The highest yield (14.41 t/ha) was observed in plots mulched with black and silver embossed sheet. The soil microbial count was significantly influenced by the treatments. The highest population of bacteria (52.33 × 106cfu g-1) and actinomycetes (171.00 × 105cfu g-1) were observed in plots mulched with paddy straw whereas, the highest population of fungi (22.67 × 104cfu g-1) was observed in plots mulched with leaf litter. With regard to the soil microclimate, the peak value of minimum soil temperature at different depths was recorded in the plots mulched with plastic sheets. The peak value of maximum soil temperature at different depths is observed under plots mulched with black and silver embossed sheet followed by mulching with newspaper. The lowest value of maximum soil temperature at different depth was observed under plots mulched with paddy straw (T2). Higher soil moisture content was recorded under plots mulched with paddy straw throughout the crop period. Plots mulched with coir pith and coir chips also maintained higher moisture content at surface. The results of the present study revealed that mulching has significant influence on soil physical, chemical and biological properties. Mulching with black and silver embossed sheet maintained the soil microclimate which inturn helped to improve the growth and yield of okra.Item Standardisation of agro techniques for transplanted ginger ( Zingiber officinale rosc.)(Department of Plantation Crops and Spices, College of Agriculture, Vellanikkara, 2017) Sandra Merin Mathew; Sreekala, G SItem Weed management in elephant foot yam[amorphophallus paeoniifolius (dennst.)nicholson](Department of Agronomy, College of Horticulture, Vellanikkara, 2017) Lekshmi Sekhar; George Thomas, C