The Large Spacing And High Density Experimental Study On Ningxia Greenhouse Tomato For Savings And Efficiencies

In order to improve Ningxia greenhouse tomato yield and quality, air and light conditions for the cultivation of tomato traditional70~75cm spacing exists bad, uneven fight drugs, ridging mounding labor-consuming issues, carried out experimental study of high density spacing. The trial is set to spring crop planting spacing120cm large spacing,929pink fruit planting density is set as follows:2000/667m2,2500/667m2,3000/667m (corresponding to the spacing, respectively:28cm,22cm,19cm);102in miscellaneous red berries planting density is set as follows:2000/667m2,2500/667m2,3000/667m2,3500/667m2(corresponding to the spacing, respectively:28cm,22cm,18cm,16cm).929autumn crop cultivated fruit powder spacing is set to120cm, red fruit cultivation Bart spacing is100cm, given the density of the two species were set as follows:2000/667m2,2500/667m,3000/667m2(corresponding to the spacing namely:28cm,22cm,19cm). The results showed that:1. Spring test results show that the large spacing120cm plants are different from density the929in flowering, fruiting and gaining greatly time order is:2500plants/667m2>2000plants/667m2>3000plants/667m2. Planting density has a similar effect on the fertility of the hybrid the102red tomatoes.2. Spring test results show that the spacing of the929high pink tomato is set to be120cm, stem diameter size order is:2500plants/667m2>2000plants/667m2>3000plants/667m2. But there are differences in Miscellaneous102red tomato at different times in the size of the order. No specific change rule.3. The test results show that:120cm spacing allows large leaf area and chlorophyll content to be increased and photosynthetic efficiency is enhanced. At the meanwhile planting density under high photosynthetic indexes range from2000to2500plants/667m2are high.4. The test results show that the high density and line spacing have great influence of different tomatoes varieties on VC content, organic acids, soluble sugar and soluble solids.5.The results show that the same line spacing with different planting density have a significant effect on yield and different line spacing with the same planting density also exists distinct differences; and best cultivated line spacing of different tomatoes varieties have obvious differences (In the spring the929pink tomato the best planting density2500plants/667m2; in miscellaneous the102red tomato is3500plants/667m2, the optimum planting density of Barth red tomato is2500plants/667m2).6. The autumn test results show that physiological index value, photosynthetic index value and the yield of cultivation under120cm line spacing is higher than the value of the values are under100cm line spacing.7. The large line spacing cultivation demonstration compares with conventional cultivation, tomato average yield increases2367.9kg/667m2, revenue increases6120.2yuan/667m2.(Note: The average market tomato price is2yuan/kg).