In the past few days, a friend asked me: "Teacher Jia, my sunshine rose bunches and grains are no problem, but people only give more than half the price, is it vicious competition or sunshine roses have developed more"?
I was a little stunned, the price of grapes has never been decided by farmers, it is how much money is given by the vendors, where is the vicious competition? Even if the sunshine rose develops rapidly, it is far from the level of the buyer's market, where is the development more? The sun rose in the photo is indeed not bad, but I still found the hollow fruit. He told me that the vendors also reduced the price of hollow fruit.
The following figure is the comparison between hollow fruit and normal fruit, it seems that the gap is not large, really to the ground to taste it. I remembered that a friend sent me two bunches of sunshine roses last winter, which were also hollow fruits, without a strong fruit aroma, and the sweetness was very average.
Netizens asked me, why are some hollow and some not hollow? Why is the same bunch of fruit different? I am using a special product for sunshine rose imported from Japan, is it a problem of a non-nuclear agent or a bulking agent? What is the cause of hollow fruit? How to solve the hollow fruit?
This series of questions is like a mortar, I have not yet begun to answer the next one, the first question has not finished typing, the voice call of friends and friends has come again, and the anxious mood can be seen. In fact, it is no wonder that the reasons for careful summarization are the following two.
1. Late kernel-free treatment
The seedless treatment of grapes is theoretically 1-3 days after flowering, but our flowering period is not one-two-three together. When the spike tip of the flower is full, the fruit grain on the upper shoulder is almost the size of a mung bean, that is, more than 3 days after flowering, and the core has formed.
The seedless agent will degrade the already formed core, and the original position of the core can be empty after degradation, which forms a hollow fruit, and the later the treatment, the more obvious.
2. Swelling treatment lacks nutritional support
The hollow formed late by the seedless treatment could have been compensated for, and when there were enough granulocytes (dry matter), the cells would occupy the space of the original fruit grain, and the hollow would not be seen. The dry matter of the fruit grain is not as simple as stimulating cell division, and it also needs sufficient nutritional support, which comes partly from the reserve and partly from feeding and transformation.
The nutrition of the reserve depends on the management before flowering, the characteristics of the sunshine rose are not long in early spring when the low temperature is low, which adds a lot of difficulties to the nutrient reserve, the low temperature does not love rooting leads to poor leaf development (viral disease in early spring), the bad quality of the leaves leads to insufficient photosynthesis, there is not enough nutrition to supplement the root system, this vicious circle does not break the nutrient reserves can not be good. Therefore, just after the flower has flat branches, yellow, ridged, the leaves can be seen to become smaller during the flowering period.
Feeding and transformation should be timely and sufficient, and the grapes will enter the period of rapid cell division immediately after flowering, which requires a lot of nutritional support. But we often ignore the early feeding, especially the garden with uneven flowering period, the early flower grows to the size of the peanut rice and the late flower is the size of the mung bean, the step-by-step feeding of the early flower is easy to lack nutrition, and the hollow fruit is more obvious after the expansion treatment.
Early sunshine roses may also encounter low temperatures and haze, which will also affect the absorption and conversion of nutrients.
After figuring out the reasons, the solution is not difficult to produce, the following is my commonly used program, works but not necessarily the best, the variety of sunshine rose has developed rapidly in recent years, but it still lacks the foundation, many problems have not been fully exposed, many management techniques are still groping, there will definitely be more and better technical solutions to replace my program.
1. Apply organic fertilizer with a fertilizer absorption belt at the front of the bud and match the appropriate amount of compound fertilizer (50--80 kg), thin the soil layer around the fertilizer absorbing root, or bend the bow to roast the ground to increase the ground temperature, creating a good environment for the growth of new roots.
2. Early stalks reduce unnecessary nutrient consumption, and when the new shoots have more than two palm-sized leaves, they immediately give rise to the root system. Or after the bud, the combination of early Chong Shi Zhi Ji gave birth to the great white root. Both the first long leaves and the roots are intended to concentrate on nutrients.
3. When the great white root is born, the nutrient absorption becomes vigorous, and the nutrient supply should be sufficient. At the same time, we must pay attention to watering, and the spring bottom should be full of water without fear of being large, and we are afraid that the temperature of frequent watering will not rise, and the temperature of the ground and water will be more important than fertilizer.
Fertilization focuses on nitrogen fertilizer, calcium fertilizer and the right amount of magnesium, I often arrange a re-examination of calcium magnesium nitrate. Phosphorus and potassium fertilizer input must be there but should not be too much, more phosphorus fruit stalk is easy to age, more potassium branches will age, which will affect the transport of calcium, thereby indirectly affecting the fruit development after fruit setting.
4. After pulling open the fruit spike before flowering, fertilize according to the growth trend, this fertilizer can not be confused, can not die routine.
Balanced fertilizer is used for weak tree potential, and high phosphate fertilizer is used for medium tree potential. If the tree is strong, it can be fertilized by ditching and cutting roots, and breaking roots is the best control of prosperity. High-quality compound fertilizer 50--80 kg, high-quality bacterial fertilizer 5--8 bags.
5. 3-5 days after fruit preservation, immediately flush with potassium and calcium, and those who have been fed fertilizer before flowering can be dragged to 7 days after fruit preservation.
In order to ensure the ground temperature and absorption, 3-4 days before the expansion treatment should be fertilized and watered, and then treated after the equal temperature is restored, and the watering and fertilization should not be watered for 7 days after the expansion treatment.
The above five articles focus on ground temperature, root absorption, nutrient mix and fertilization timing, if all of them are done, the management of the expansion period will become very relaxed, which is not only applicable to sunshine roses.
At the same time, in terms of regulator treatment, I referred to the general scheme on the Internet, but the timing of the treatment was more rigorous.
The scheme I use for fruit preservation and seedless treatment is the end of flowering ---- the first fruit stage (small rice grains), with gibberellic acid (25ppm) + chloropyrurea (2ppm) + high harvest. This recipe is better than I used to treat it with only gibberellosis, at least the stalk is not so thin, but it is not too thick.
The use of the time is to trim the spike before the flower, mainly to remove the large secondary spike, the remaining part when the upper part is close to the xie flower, the middle blooms, the spike tip is the best when the first flower, each processing of a string will be marked, generally properly managed garden 2--4 days to complete the processing. High yield (streptomycin) is used in the last year, and the country has banned it since then, so I plan to replace it with Egefu in the future. Eggfu can soften the stem before flowering, the specific use multiples and suitable timing on the sun rose should be further explored, I intend to first refer to the implementation of the plan of the vine, fine-tuning in individual places, observing and finding a better use plan.
The timing of expansion treatment is when the cell division rate decreases, if the nutrient temperature is suitable, it is 10-12 days after fruit preservation, insufficient nutrition or low temperature on cloudy days is 12-15 days after fruit preservation, and continuous cloudy days should be appropriately postponed. The above treatment when I this year in the awning program, bow shed or warm shed to do early temperature and light are not as good as the shelter, according to the temperature and light appropriate delay, theoretically the warm shed delayed 5-7 days, arch shed delay 3-5 days, this is calculated according to experience and accumulated temperature, the actual operation will be slightly different.
Fruit use a trace amount of chloropyramide, expansion with gibberellose + bomericin Best, fruit only with gibberelloic acid expansion with gibberellosis + chloropyramide best, expand once with reference to the concentration of the instructions.
Regardless of which scheme is used, expansion requires the accumulation and adequate supply of nutrients, theoretically absorbing + storing - consuming = the nutrition of the fruit grains, this formula is not rigorous enough but generally reasonable. Do a good job of storage before flowering, increase feeding after flowering, and reduce fearless consumption by protecting the ground and repairing the ears and thinning the fruit early, which is to achieve expansion and good effect.
This year I am comparing the swelling twice and the swelling of the treatment plan, at present I have not gotten the most satisfactory ratio, I want to make the fruit grain slender and round, no deformity, the thickness of the stem is appropriate, not yellow, not thick and no thorns, soft and flexible and firm. These require constant deliberation and comparison.
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