Dissertation
Dissertation > Agricultural Sciences > Gardening > Fruit trees gardening > Berries > Grapes

The Effects of Slow/Controlled Releasing Fertilizer and Applicationg Method on Yield and Quality of Thompson Seedless

Author DingXiao
Tutor GuoChunHui
School Northwest University of Science and Technology
Course Pomology
Keywords Paper bags slow-release fertilizer Seedless grapes Yield Fruit quality
CLC S663.1
Type Master's thesis
Year 2009
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Turpan region unique climatic conditions making it one of the main production base of our grapes , seedless pillar industries of the region , but the soil porous , low organic matter content , and mostly gravel soil , sand a severe , soil gravel porous , coupled with the regional rainfall less evaporation , irrigation 10 to 13 years , serious Nutrition Loss inefficient fertilizer use , to be repeated a large number of top-dressing to ensure the supply of the fertility . The test is based on existing research , application of organic fertilizer seedless cultivars for Turfan and using a paper bag Zakon slow release fertilizer to improve soil structure , saving fertilizer and artificial , to protect resources and the environment target , increase production , through research and analysis on a variety of processing filter for Xinjiang seedless saving , environmentally friendly , an increase of the production of the best fertilization program , the test results are as follows : ( 1) after iron fertilizer leaves surface spray processing (A2 treatment ) and not spraying iron fertilizer treatment (A1 processing ) , the highest plant photosynthesis increased by 34 percent , the average content of chlorophyll in leaves three periods a SPAD increased production by 3 percentage points , an increase of 5 percent Brix . Ferrite can promote the synthesis of chlorophyll , DNA and hormone can promote plant photosynthesis . ( 2) The application of organic compound fertilizer on the yield and quality of seedless promote , but the single application of organic compound fertilizer (A4 processing ) is not very obvious advantages , the production only than the application of conventional processing of nitrogen and phosphorus (A1 handling ) high 5.86% , sugar content increased by 5.48% , the pedicel resistance to tension and berry -resistant pressure two storability index increased by 12.91% and 12.87% , respectively . (3 ) organic fertilizer with paper bags and spraying iron fertilizer (A7 processing ) production than local management (CK) high by 38.6% , reaching 47725/hm2, value-added 23,925.6 yuan / hm2, Brix increase of 22.80% , reaching 19.93 , pedicel resistance to tension and berry -resistant pressure two storability index increased 38.18% and 78.93% , indicating that the phenomenon of the drain fat hinder seedless white grapes yield bag control fertilizer for local non better fertilization practices the nuclear white grape production , can effectively guarantee fat , control fat , so as to achieve the yield , improve fruit quality effects .

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