First, the flowering period “three spraysâ€: The jujube tree has a long flowering period, which is divided into three periods: early flowering, full flowering and late flowering. It can last for more than one month, that is, from late May to the end of June, and generally enters into Sheng around June 8. Flowering period. Jujube flower wet and afraid of dry, but at this time when the weather is hot, dust and more, easily lead to reduced stigma dense head leaves, so that the stigma stick a lot of dust, seriously affecting the normal pollination. At the same time by the harm of dry hot wind, jujube increased transpiration, such as fertilizer and water shortage, it is easy to make the stigma withered and fall off, so during the flowering spray, spray fertilizer, water spray can greatly improve the fruit set rate of jujube. At the beginning of the flowering period, when 30% of the flowers are open, they can be sprayed with gibberellin at a concentration of 1010-6 to 1510-6, ordoxin, 2,4-D pollinator, before or after 10 o'clock in the morning with clear and no wind. One of the hormones such as cytokinin, and then adding 0.2-0.3% borax solution, the better. When the flowering period is 60%, when the flowers are open, evenly spray the clear water into the jujube flowers, and perform it once every 2-3 days, and spray 2-3 times successively to increase the fruit setting rate by 35-48%. When the jujube blooms 40% open, spray 0.5% urea and 0.4% potassium dihydrogen phosphate solution, spray once every 5-7 days, generally spray 3 times, can improve the fruit setting rate of about 30%; in mid-July then spray 1 Times, can reduce physiological fruit drop. Such as spraying after the rain should be promptly fill spray.
Second, a reasonable pruning: jujube tree pruning can adjust the tree potential, make full use of nutrients to ensure that the jujube tree ventilation and light, increase fruit placement, reduce the number of rotten fruit, falling fruit, so as to achieve the purpose of increasing production. Jujube pruning, mainly to sparse, cut, shrink combined. Should be done: sparse through the dense branches, remove the cross-branches, cut down the drooping branches, compress the overly high branches, lightly retract the strong trees, weak trees retract, the old trees go to the old branches properly, the young trees prune around the plastic. The time of pruning should be carried out after the beginning of spring and before the jujube tree is germinated.
Third, timely opening: A is a ring skinning. An open armor can inhibit vegetative growth, prevent jujube tree disease, improve the nutritional conditions of jujube flowers and young fruit, and enable flowers and fruits to fall more and more. Therefore, the farmer has: "flowering cut a few knives, jujube tree pressure bending" statement. Jujube tree open, generally can increase production about 30%. Open armor should be carried out when the jujube blossoms one third of the time. It should be opened at a distance of 30 to 40 centimeters from the ground. The opening should be 0.5-0.7 centimeters wide and it should be deep enough to reach the xylem but it must not damage the xylem. The knife edge should be flat and do not leave hairs. After opening, apply a suitable amount of pesticide to the mouth to prevent insects. If the tree age is less than 7 years, the jujube tree whose trunk diameter is less than 10 cm or is not strong should not be opened. Parts of the armor should be changed year by year.
Fourth, the new branch heart: new branches can control the jujube tree crown uncoordinated growth, to facilitate the formation of a reasonable canopy, branches dense and uniform, good ventilation and light transmission, control of the length of the branches do not need to grow long, saving nutrients, It is beneficial to improve fruit set and fruit development of jujube trees. Tests have shown that the maximum length of new branches after crucible can reach 45 centimeters, and up to 12 can be fruited, and a big plump; the longest jujube on the branch is only 25 centimeters in length, and up to 5 canadian fruit. At the germination stage of jujube branches in the middle and late May of May, the new branches 5-7 cm long that were grown in the dense area of ​​jujube branches should be selected.
5. Fertilization and watering: The jujube tree is in the period of initial flowering and late flowering when it needs water and fertilizer. In general, each adult tree applies 15 kg of cake fertilizer and 1 kg of ammonium bicarbonate or 50 kg of human waste in the initial flowering period, and applies 1 kg of urea or 1 kg of compound fertilizer in the final flowering period, which can significantly increase the yield. The casting method is: dig a ring groove that is 40 meters deep and 40 centimeters wide at a distance of 2 meters from the trunk. After spreading the fertilizer, pour enough water to fill the groove after the water has penetrated.
VI. Flowering bee: The jujube tree is a typical insect-like flower and cannot be pollinated on its own or by wind, but its nectar is rich and its aroma is strong. Bees are the best pollinators. During the flowering period, the beehives are evenly placed in the jujube garden. The distance between the beehives does not exceed 300 meters. The bees start their activities at 11 DEG C and are most active at 16-29 DEG C. The use of bee pollination to pollinate can greatly increase the fruit setting rate. However, pesticides that are highly toxic to bees, such as carbaryl and pyrethroids, are strictly prohibited during the bee-keeping process in the jujube garden.
For stocking grass and silage, farmers usually use baler machine to make them as round bales.
There're many types bale machines, some big Bale Machine can pack big bales weight about 1ton or more, its packing and delivery all need big machines as it's difficult for human to move.
Big farms with lots of grass usually pack big bales, for small farms, farmers usually pack small bales.
Small bales usually weight 70-90kgs, diemeter about 1m, wrapped with Silage Film 250mm width.
For small farms, small bales are much more suitable for silage stock, and small bale machines are more popular.
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