Technique Measures For High Yielding Of Tomato In Sunlight Greenhouse In YuLin

This treatise made the sufficient research, observation and analysis for environmental factor of nature condition and sunlight green-house in Yulin. And also it made the test and analysis for the growth technique to educe the conclusion as follows:1. there has ascendant nature condition in Yulin: large difference in temperature in day; less air humidity; sandiness soil; abundant and excellent wellhead; clean air; enough organic muck source; high yield growth which suit to tomato very much..2. Illumination of sunlight green-house is stronger in Yulin; reach to 30-30.5 thousand meter candle power. Night temperature is lower day temperature about 10-15℃, and it is propitious to breed seedling strongly in large difference in temperature in day by night. It can reduce the air humidity by sprinkling plant ash in green-house, which can keep 6-8 hours when room humidity is 60% in one day and the lowest reach for 50%. The temperature of green-house is too low in about January 18, but can be improved by little building vaulted cote and covering to breed seedling more congruent. Accordingly, the environmental condition just as sunlight, humidity and temperature of sunlight green-house suffices the demand of tomato's growth.3. the character just as plant height, leafage number, plant breadth, plant breadth/height of stuggy seedling are all more excelled than leggy seedling. Its prophase output is improving 14% and 13% than leggy seedling and ageing seedling respectively, metaphase output 6% and 14%, anaphase output 39% and 46%, overall output 23% and 25%. Accordingly, stuggy seedling has distinct advantage which can cut the time for making seedling adaptive, come into the market before others'and improve output and production value. 4. Tomato have strong rootage ability, and the abduction rootage is more effective when used IBA and NAA. That roots early, growth rapidness and be great quantity, which marked effect is IBA, rooting rate 15% higher than the contrast. Root growth due to loose soil suitable supply of oxygen, water and nutrients, which make the soil excelled marked than nutritious liquid. Cutting breed period shortened 31 days than ordinary seedling, and also its certain plant period fructification period is ahead more than 30 days, and extend the fructification period.5. It engrafts that uses the earliness breed to cion and lateness breed to rootstocks to planting tomato in sunlight greenhouse. Because the root of engraft seedling has marked increasing strong absorb function which can supply enough water and manure for plant, the up ground part has earliness character. It can learn from others'strong points to offset its weakness to attain the effect of increasing output, coming into the market early, boosting up its anti-disease character, boosting rate of high quality fruit and boosting its production value. It can also economize the cost of seed by which use the plant axillary of tomato female parent for cion.6. Using the optimal way to the breeded seedlings to make certain plant, its future growth and output will be great effected. Adopting half-horizontal breeding for upper seedlings can make it growth better, which has marked advantage can boost up its fruit rate, earliness and its output is hyper general method and plant deeply method and boost up its anti-disease character. The method of planting deeply has the worst effect. Plant certainly and hidden in water breed and adapted seedling need only 5 day, its incidence of a dead seedling is 1% and incidence of a disease is 0. And the Plant certainly and out of water method's capability is 10 days, 27% and 29.4% respectively. The latter increases markedly.7. Train reasonably for tomato can boost the output. If made single-stalk train, its plant is low, stalk is strong, the distance between two burls is shorter, single fruit weight is bigger. If made double-stalk train, its prophase output, overall output and production value is in tiptop, but its fruit is less markedly. And one stalk and a half train are placed in the middle. If you want to come into the market early, please adopt the training of single-stalk and increase the planting density at the same time. If you want to obtain high yield, please choose the training of one stalk and a half or double-stalk.8. It uses 2.4D and drop-defense usually to overcome the shatter and fruit drop which is as a result of fecundation badness, when planting tomato in sunlight greenhouse in early spring. When using 2.4-D to drop flower, the 10-20ppm concentration is befittingly. The drop-defense which concentration is 20-40ppm can make better effect. You'd better make proper accommodating according to the temporal greenhouse's air temperature, just as low concentration when high air temperature and high concentration when low air temperature, and cannot use drug repeated.9. The Ethephon has ripening function. That using it to daub tomato can advance tomato's autumn before tomato's green maturity. Daubing tomato which is in green maturity of earliness planting in sunlight planting with 1000-1500ppm Ethephon can advance tomato's autumn markedly, can make tomato come into the market before others'time, and no significant injury to plants. Ethephon used in the ripening period was much better than green fruit processing period. The optimum concentration of Ethephon is 3000ppm when tomato fruit set aside to deal with...