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A kind of cultivation method of perennial forage corn

A technology for forage corn and a cultivation method, which is applied to the cultivation field of perennial forage corn, can solve the problems of low scientific and technological content, low forage seed production capacity and forage yield, and low stress resistance, and achieves high-efficiency cultivation. methods, improving planting scale and planting level, and meeting the effect of strong demand

Inactive Publication Date: 2016-06-22
SICHUAN AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with foreign forage varieties, these self-fertile varieties have low technological content, low forage seed production capacity and forage yield, and low stress resistance. In particular, there is a lack of perennial forage grasses with excellent comprehensive characteristics.

Method used

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  • A kind of cultivation method of perennial forage corn
  • A kind of cultivation method of perennial forage corn
  • A kind of cultivation method of perennial forage corn

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1, hybrid seed production and biological characteristics of perennial forage corn F80

[0026] 1. Hybrid seed production of perennial forage corn F80

[0027] 1. The maize inbred line 2848, which has a high seed setting rate when crossed with tetraploid teosinte, is used as the female parent, and the maize inbred line 5027, which has a high combining ability when crossed with the maize inbred line 2848, is used as the male parent to obtain the hybrid combination 2848 ×5027 seeds.

[0028] 2. Production of perennial forage corn hybrid F80

[0029] In Xishuangbanna in autumn, the paternal tetraploid teosinte and the female parent 2848×5027 were sown, artificially crossed, and the hybrid F 1 The generation seed is the perennial forage corn seed, named as F80, and the specific hybridization method is as follows:

[0030] 1) Sowing male and female parents

[0031] The sowing time of the male parent is 20-30 days earlier than that of the female parent. The sow...

Embodiment 2

[0042] Embodiment 2, artificial cultivation of perennial forage corn F80

[0043]1. Sowing depth test

[0044] Select plump seeds from the perennial forage corn F80 seeds obtained in Example 1, sow in seedling pots filled with field soil, and set 4 sowing depths (1cm, 2cm, 4cm and 6cm respectively) in each seedling pot , each sowing depth is randomly arranged, and 5 plants are planted at each sowing depth, and there are 8 seedling pots in total. After sowing, the seedling pots are placed in the greenhouse at a temperature of 15-20°C, and the water and fertilizer management is the same as that of ordinary cultivated corn. Four weeks after sowing, the total number of plants and total tillers of each treatment in each seedling pot were counted, and the average number of tillers per plant was calculated. The result is as figure 1 and shown in Table 1.

[0045] figure 1 The sowing depth of each plant from left to right in the middle is 6cm, 1cm, 4cm and 2cm, and the correspond...

Embodiment 3

[0074] Embodiment 3, artificial cultivation of perennial forage corn F80

[0075] Select full seeds from the perennial forage corn F80 seeds obtained in Example 1, and sow them on September 10, 2010 in the field soil at an altitude of 400 meters in Xishuangbanna. The sowing depth is 3.5 cm, and the spacing between plants and rows is 32 cm. Apply 10 kg / mu of Stanley pure sulfur-based compound fertilizer to the bottom fertilizer hole, and topdress 20 kg / mu at the jointing stage, and the rest of the management is the same as that of ordinary cultivated corn. Plant 10m per density 2 (cell), 3 repetitions. When the plant height reaches 2m, select the plants with the same growing way to cut for the first time, the stubble height after cutting is 15cm, weigh fresh weight after cutting, which is the output of cutting for the first time, in the result embodiment 2 There is no significant difference in the yield (6522.1 kg / mu) of the first harvest (6522.1 kg / mu) shown in Table 6 when ...

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Abstract

The invention discloses a culturing method of perennial forage maize. The method comprises the step of planting the forage maize, wherein the forage maize is F1 forage maize which uses tetraploid teosinte as a male parent, uses a maize inbred line or a single cross hybrid as a female parent and is obtained by artificial crossing; the planting process is that seeds of the forage maize are directly sown in a field; the sowing depth is 3.5 to 4.5cm; both a line spacing and a plant spacing are 28 to 32cm; clipping is carried out for the first time when the forage maize grows to the height of 2 to 3m; and the stubble height is 15 to 25cm. The invention provides the high-yield high-efficiency culturing method for the novel perennial forage maize; and the culturing method has important significance for improving the planting scale and the planting level of the forage maize, meeting the active requirement of the herbivorous animal husbandry which rapidly develops on forage grass and popularizing the forage maize.

Description

technical field [0001] The invention relates to a cultivation method of perennial forage corn. Background technique [0002] The proportion of herbivorous animal husbandry in agriculture is an important symbol to measure the level of a country's agricultural modernization. Compared with developed countries, there is still a considerable gap in the development of herbivorous animal husbandry in my country. The output value of grassland animal husbandry in my country only accounts for about 10% of the total agricultural output value, while some developed countries have reached 50%-80%. At the same time, with the development of social economy, people's demand for grass-fed livestock products such as meat, eggs and milk is increasing. From 1978 to 2008, although the per capita beef and milk production in my country increased by 20 times and 30 times respectively, they still cannot meet people's needs. This undoubtedly requires more forage to support the rapid development of ani...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G1/00A01H1/02
Inventor 周树峰李晚忱高世斌兰海张志明马啸付凤玲潘广堂唐祈林卢艳丽荣廷昭
Owner SICHUAN AGRI UNIV
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