When Zuo Rong, a plantation planter at Qinshui County, told reporters in an interview on related issues, the phenomenon of leaf elongation of the ear of corn ear has been seen before, but the area of ​​occurrence is very small, and the elongate part of the temporal leaf is about 5-10 cm long. Does not affect filament spit. The occurrence of corn extension in corn leaves may be related to factors such as large fertilizer and abnormal weather. The supply of fertilizer and water is sufficient, especially for large fertilizers, and the plants are over-grown and prone to elongating the temporal lobe. Locally grown corn is usually applied only 2 times, once as a basal fertilizer, and once during the 7-8 unfolding leaves of maize. Fertilizer varieties are mainly 45% compound fertilizer, base application 25-30 kg, topdressing 10-15 kg. Adopting such a fertilization method, corn has sufficient nutrients in the middle growth period, and it easily leads to elongation of the temporal lobe. Corn seedlings and tassellings encounter high temperature drought or continuous rainy weather, but also prone to temporal lobe elongation. Since August, drowning and other places have continued to experience high temperatures and droughts. There has been no continuous rainy weather, and only a few showers have occurred at night, and the amount of rainfall is not great. Therefore, the occurrence of elongating of the eel in maize may be mainly caused by hot and dry weather. The hot and dry weather in the previous period also caused the occurrence of multiple tillers in multiple spikelets and summer corn in spring maize. There is also a difference in the growth activity of temporal lobe between different maize varieties. According to the report by Dafeng City Seed Company Liu Zongbo and others in the article “Characteristics and Prevention of Elongated Leaves of Maize Ears,†the 1993 Dafeng City had more than 10,000 mu of corn with different degrees of temporal lobe elongation. Serious land masses of 2,000 mu have occurred, which mainly occurred in hybrid corn varieties such as Dandan No. 4, Tangyu No. 1, and Tangyu No. 2. According to the survey, 1-3 leaves of 3-5 cm in length appear in 1%-5% of the general field plots, and 5-6 leaves in length of 30-40 percent in severe plots with more than 60% of the ear. Centimeter elongation leaves lead to elongated ears, poor linting, poor pollination, increased length of bald heads, increased infertility, and a significant reduction in production. There are many reasons leading to the expansion of corn taro leaf. Cultivation factors are the main influencing factors. Climate conditions are also important influencing factors. Seed nature is an intrinsic factor. Excessive fertilization will cause fertilizer and water to meet in the middle stage of growth, and the basal internode and the shape of the male and female leaves will lead to active middle leaves of the fruit, which will induce the growth of leaves, ears and ears. To prevent the occurrence of elongating leaves in the leaves of the corn ear, proper fertilization should be applied according to the planting density and seedling conditions, the base fertilizer should be applied, the seedling fertilizer should be applied in time, the early application and heavy panicle fertilizer should be applied. The amount and time of fertilization depends on the estuary, soil quality, seedlings, and planting density. General pedicel foot, small density, good seedling plots, ear fertilizer less applied, late application; on the contrary, early application, multiple applications, to coordinate growth. During the tasseling period of the corn, if there are elongating leaves of the temporal lobe, affecting the spit of the filaments, the 3-5 cm elongate leaves should be cut off before silking, so that the filaments can be timely pollinated and inseminated so as to avoid loss of production. Ketone Test Strip,Urinalysis Reagent Strips,Urinalysis Reagent Paper,Reagent Strips For Urinalysis Changchun Medicon Technology Development Co., Ltd , https://www.teststrip.pl
On August 10th, Sun Qingxin of Lishui County came to the telephone to report that there are 1-2 leaves of corn in 1 mu of land and the leaves are elongated, which leads to poor spit formation. This type of ear accounts for 30%-40%, and the variety is Danke 2123. . Wang Shucheng, Fangdu Township, Laishui County, came to the telephone to report that there were 4 or so small leaf blades on the 6-mu land of the maize ear. These leaves were formed by the elongating of the temporal lobe, and 80% of the ear was in the field. They asked what caused this.