1 materials and methods
(1) test material: potassium fertilization, conventional fertilizer (farmers experience with fat).
(2) and the selected crops varieties: ink, eggplant.
(3) test location: huai bao ChaHe town residents' committees vegetable garden.
(4) design of experiment: village 10 m long, to 4 m wide, covers an area of 40 m2, repeat 3 times, random, each district, the four ridge line 2 per ridge engraftment.
(5) test: in eggplant blossom period, timely and right amount of fertilizer, potassium fertilization 20 kg / 667 m? (A), potassium fertilization 15 kg/m 667? (B), potassium fertilization 10 kg/m 667? (C), the conventional fertilizer (farmers experience with fat) (D) for comparison and so on four processing.
2 test process
(1) the testbed choice: choose the preceding for autumn delay the pepper cultivation of steel canopy.
(2) soil, 15 days before the engraftment combined fertilization commune land, soil preparation ridging after plantar and shed water temperature tectorial membrane made quantity. Particular way is: on February 18, on the basis of combining application of basal, divided according to the requirements of test processing district, fertilizing evenly, and then the commune laid of soil, soil preparation for planting drip irrigation equipment, covering membrane after pouring enough water, finally closed canopy layer soil temperature. On March 2, engraftment eggplant.
(3) soil preparation and fertilization: the drug treatment of soil at the same time, 667 m2 of rotten high quality organic fertilizer 5000 kg, N - P - K = 15:15:15 compound fertilizer 50 kg, 35 kg calcium superphosphate.
(4) transplanting fixed value: the matrix way eggplant seedling cultivation of seedling, and indicators for 15 cm plant height, leaf blade thick and stretch, stem stout, 0.6 ~ 1 cm diam., internodes short, the first bud, root developed, no symptoms of diseases and pests. , home, home on March 2, watering right amount water, engraftment 50 cm row spacing, planting distance 40 cm, 2 rows per strip engraftment.
(5) fertilizer and management: eggplant avoid fertilizer by the first ear fruit sit tight, lest cause moderate growth, due to the basal is full, the whole growth period of conventional fertilizer fertilizer and 3 times, respectively, on April 20, 2012, on May 5 and May 15, potassium fertilization according to test requirements where each drip irrigation and fertilizer.
(6) prevention and control of diseases and pests, disease prevention and control in the March 24, 65% zineb wettable powder 500 times liquid, 75% chlorothalonil wettable powder 600 ~ 800 times liquid, spray once every 7 to 10 days, a total of 2 ~ 3 times. Aphids and starscream available 40% rogor emulsion 1000 times liquid, 50% sulfur marla was 1500 ~ 2000 times liquid.
3 test results and analysis
3.1 plant trait analysis
3.2 production results
3.3 strain survey
The experimental results showed that 3.4
Different fertilizer treatment on eggplant growth potential, high yielding results: there are differences in many aspects and the disease resistance of eggplant plant trait analysis (table 1), the application of potassium fertilization can increase plant growth power, promote the growth of the fruit, and the conventional fertilization increased; Effect on the yield of eggplant by yield (table 2), A and B two processing district were made respectively is 488.72 kg, 486.66 kg, demolition synthesis 667 m2 production increased by 16.12%, 15.63% than control, and contrast than significant difference, and potassium fertilization C processing production is not obvious; Of each district verticillium wilt and cotton blight disease processing analysis (table 3), the processing of eggplant cotton blight disease strains differ not quite, strain of eggplant verticillium wilt control treatments for most, potassium fertilization with B processing plant disease at least, A, B two processing disease rate difference is not obvious, 11.33%, 10.67% respectively, and D processing has bigger difference.
4 summary and discussion
By analyzing test results, eggplant with potassium sulfate in the production of fertilizer, 667 per 15 kg/m2, flushing, nutrient absorption, do not harden soil, enhance the plant growth power, improve the eggplant disease resistance, especially reduce the eggplant verticillium wilt, heading, be helpful for crop yield, improve quality.
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