CN107006256B - A planting method for increasing the tiller number of king grass - Google Patents

Abstract

The invention discloses a planting method for increasing the tiller number of king grass, comprising the following steps: removing impurities, fertilizing, planting, cutting and managing; wherein, after each cutting, urea and NPK compound fertilizer are used for fertilization treatment, and urea and NPK are used for fertilization. The ratio of NPK compound fertilizer is 1:0.4-0.5, and the concentration of vitamin C at 4%-5% and 6-BA at 4mg/L-5mg/L are sprayed after each cutting. Without reducing the plant height and average unit weight, it can effectively increase the number of tillers, improve the tillering rate of king grass, and generally increase the annual yield per mu.

Description

A planting method for increasing the tiller number of king grass

technical field

The invention relates to the technical field of king grass planting, in particular to a planting method for increasing the tiller number of king grass.

Background technique

Reyan No. 4 king grass is currently the most suitable mowing grass for intensive cultivation in South China, with a height of 2.0-4.5m. It has the advantages of lodging resistance, drought resistance and thin ridge resistance, strong disease resistance, strong tillering performance, and fast growth rate. Because of its tender and leafy stems and leaves, good taste, rich nutrition and high yield, this forage is classified as a high-quality and high-yield forage for mowing, fresh feeding, silage, drying green hay or processing grass powder. Rabbit and fish have better palatability and production performance.

King grass is a tall grass of the Poaceae family, with developed root system and lush fibrous roots intertwined into a network, which can firmly live in water and soil, and has a good effect on preventing soil erosion, windbreak and sand fixation. Moreover, the root system of the king grass has a strong metabolism, and a large number of fibrous roots that die naturally every year remain in the soil, which can continuously increase the content of soil organic matter. At present, the cultivation and planting of king grass mainly adopts seed stem or tiller propagation, and the tiller rate after cutting directly affects the yield of the next crop. Therefore, improving the tillering rate and increasing the number of tillers after mowing is beneficial to the rapid and large-scale popularization and utilization of king grass.

SUMMARY OF THE INVENTION

In view of this, the present invention provides a planting method for increasing the tillering number of king grass, which solves the technical problem of low tillering rate of king grass in the normal growth period in the prior art.

The technical means adopted in the present invention are as follows: a kind of planting method improving the tiller number of king grass, comprising the following steps:

1) Impurity removal: 2 to 5 days before planting, use glyphosate water with a concentration of 10% to 12% and water, and the ratio of glyphosate water to blending water is 1:50 to 80;

2) Fertilization: apply 500kg-1000kg of organic fertilizer and 10kg-15kg of phosphate fertilizer as base fertilizer per mu;

3) Planting: take the middle and lower part of the stem of the king grass seedling, cut it off with a knife, leave 2 to 4 well-developed bud eyes in each section, open a ditch, plant the seed stem flat in the ditch, cover soil and step on it;

4) mowing: mowing for the first time after 91-100 days of planting, leaving 4 cm-5 cm of stubble, and mowing every 31-45 days after the first mowing;

5) Management: After each cutting, urea and NPK compound fertilizer are used for fertilization treatment. The ratio of urea and NPK compound fertilizer is 1:0.4~0.5. After each cutting, the concentration of vitamin C is sprayed with a concentration of 4%~5%. And 4mg/L ~ 5mg/L of 6-BA.

Preferably, in the step 1), the ratio of the glyphosate water preparation to the blending water is 1:50.

Preferably, in the step 3), the depth of the ditch is 10cm～14cm, the width of the ditch is 20cm～28cm, the spacing between rows is 80cm～85cm～×50cm～55cm, and the thickness of the soil covering after planting is 1cm～4cm.

Preferably, in the step 4), after the first mowing, mowing is carried out every 30 days, and the number of times of mowing is 7 to 10 times, and in the step 5), the ratio of urea and NPK compound fertilizer is 1 : 0.5, after each cutting, the concentration of 5% vitamin C and 4mg/L 6-BA were sprayed.

Preferably, it is suitable for planting in April every year in Hainan, Guangdong, Guangxi, Fujian, and Taiwan, China, and the mowing ends in April of the following year.

By adopting the planting method for increasing the tiller number of the king grass provided by the invention, without reducing the plant height and the average weight per plant, the tiller number can be effectively increased, the tiller rate of the king grass can be improved, and the whole plant can be improved on the whole. Annual output per mu.

Detailed ways

The principles and features of the present invention are described below, and the examples are only used to explain the present invention, but not to limit the scope of the present invention.

Example 1

A kind of planting method improving the tiller number of king grass, the concrete steps are as follows:

1) Impurity removal: 400g of 10% glyphosate aqueous solution mixed with 20kg of water was sprayed 2 days before planting, and the weed killing rate reached 100%.

2) Fertilization: Before planting, apply 800kg of organic fertilizer and 12kg of phosphate fertilizer as base fertilizer. The fertilization treatment after each cutting is urea: NPK compound fertilizer=1:0.5, that is, urea is 300㎏/hm ² , and NPK compound fertilizer is 150㎏/hm ² .

3) Planting: Planted in Hainan in April, take the middle and lower part of the stem of the king grass seedling, cut it with a sharp knife, leave 2 to 4 well-developed bud eyes in each section, open the ditch, and plant the seed stem in the ditch. Inside, cover the soil and step on the ground. The depth of the ditch is 10cm, the width of the ditch is 25cm, the spacing between plants and rows is 80×50cm, and the thickness of the soil covering after planting is 2cm.

4) Cutting: After 91 days of planting, the first cutting was carried out, leaving 5 cm of stubble.

5) Management: After the first mowing, mowing will be carried out every 45 days, and by the end of April of the following year, a total of 10 mowings will be carried out. After each mowing, 5% vitamin C and 4 mg/L 6-BA were sprayed.

Example 2

A kind of planting method improving the tiller number of king grass, the concrete steps are as follows:

1) Impurity removal: 400g of 10% glyphosate aqueous solution mixed with 30kg of water was sprayed 2 days before planting, and the weed killing rate reached 100%.

2) Fertilization: Before planting, apply 1000kg of organic fertilizer and 10kg of phosphate fertilizer as base fertilizer. The fertilization treatment after each cutting was urea: NPK compound fertilizer=1:0.4, that is, urea 300㎏/hm ² , NPK compound fertilizer 120㎏/hm ² .

3) Planting: Plant in Hainan in April, take the middle and lower part of the stem of the king grass seedling, cut it off with a sharp knife, leave 2 to 4 well-developed bud eyes in each section, open the ditch, and plant the seed stem in the ditch. Inside, cover the soil and step on the ground. The depth of the ditch is 12cm, the width of the ditch is 20cm, the spacing between plants and rows is 85×50cm, and the thickness of the soil covering after planting is 4cm.

4) Cutting: After 98 days of planting, the first cutting was carried out, leaving 4 cm of stubble.

5) Management: After the first mowing, mowing will be carried out every 32 days, and by the end of April of the following year, a total of 10 mowings will be carried out. After each mowing, 4% vitamin C and 5 mg/L 6-BA were sprayed.

Example 3

A kind of planting method improving the tiller number of king grass, the concrete steps are as follows:

1) Impurity removal: 400g of 10% glyphosate aqueous solution mixed with 26kg of water was sprayed 2 days before planting, and the weed killing rate reached 100%.

2) Fertilization: Before planting, apply 600kg of organic fertilizer and 15kg of phosphate fertilizer as base fertilizer. The fertilization treatment after each cutting is urea: NPK compound fertilizer=1:0.45, that is, urea is 300㎏/hm ² , and NPK compound fertilizer is 135㎏/hm ² .

3) Planting: Planted in Hainan in April, take the middle and lower part of the stem of the king grass seedling, cut it with a sharp knife, leave 2 to 4 well-developed bud eyes in each section, open the ditch, and plant the seed stem in the ditch. Inside, cover the soil and step on the ground. The depth of the ditch is 14cm, the width of the ditch is 28cm, the spacing between plants and rows is 85×55cm, and the thickness of the soil covering after planting is 1cm.

4) Cutting: After 95 days of planting, the first cutting was carried out, leaving 4 cm of stubble.

5) Management: After the first mowing, mowing is carried out every 40 days, and by the end of April of the following year, there are 7 mowings in total. After each mowing, 4% vitamin C and 4 mg/L 6-BA were sprayed.

Example 4

A kind of planting method improving the tiller number of king grass, the concrete steps are as follows:

1) Impurity removal: spray 400g of 10% glyphosate water with 24kg of water 2 days before planting, and the weed killing rate reaches 100%.

2) Fertilization: Before planting, apply 500kg of organic fertilizer and 10kg of phosphate fertilizer as base fertilizer. The fertilization treatment after each cutting is urea: NPK compound fertilizer=1:0.5, that is, urea is 300㎏/hm ² , and NPK compound fertilizer is 150㎏/hm ² .

3) Planting: Plant in Hainan in April, take the middle and lower part of the stem of the king grass seedling, cut it off with a sharp knife, leave 2 to 4 well-developed bud eyes in each section, open the ditch, and plant the seed stem in the ditch. Inside, cover the soil and step on the ground. The depth of the ditch is 10cm, the width of the ditch is 25cm, the spacing between plants and rows is 80×55cm, and the thickness of the soil covering after planting is 3cm.

4) Cutting: After 100 days of planting, the first cutting was carried out, leaving 5 cm of stubble.

5) Management: After the first mowing, mowing is carried out every 35 days, and it ends in April of the following year, a total of 8 mowings. After each mowing, 5% vitamin C and 4 mg/L 6-BA were sprayed.

Comparative Example 1

1) Impurity removal: 400g of 10% glyphosate aqueous solution mixed with 20-30 kg of water is sprayed 2 days before planting, and the weed killing rate reaches 100%.

2) Fertilization: Before planting, apply 500-1000kg of organic fertilizer and 10-15kg of phosphate fertilizer as base fertilizer. The fertilization treatment after each cutting is urea: NPK compound fertilizer = 2:1, that is, urea is 300㎏/hm ² , and NPK compound fertilizer is 150㎏/hm ² .

(3) Planting: Planting in Hainan area in April, taking the middle and lower part of the stem of the king grass seedling, cutting it with a knife, leaving 2-4 well-developed bud eyes in each section, opening a ditch, and planting the seed stem in the ditch Inside, cover the soil and step on the ground. Plant row spacing 80 × 50cm.

(4) Cutting: The first cutting is carried out after 3 months of planting, leaving 5 cm of stubble.

(5) Management: After the first mowing, mowing is carried out every 45 days, and by the end of April of the following year, there will be a total of 7 mowings.

Comparative Example 2

For routine mowing, mowing is carried out every 60 days after the first mowing; it is planted in Hainan in April and ends in April of the following year, and a total of 6 mowings are carried out.

1. Comparative test of tiller number

Data calculation: 10 plants in each example and comparative example were randomly selected for measurement, the number of tillers was the total of the whole year, the plant height was the average of the whole year, and the average weight per plant was the average of the whole year. The specific data are shown in Table 1:

The tiller number, plant height, average unit weight data of table 1 embodiment and comparative example

It can be seen from the above table that, compared with Comparative Example 1 and Comparative Example 2, the number of tillers and the tiller rate of Examples 1 to 4 have been effectively improved. Compared with Comparative Example 2 of conventional planting in Example 1, the number of tillers was increased by 57.5, the plant height was increased by 10.2 cm, and the fresh weight per plant was increased by 110 g. Compared with Comparative Example 1, the number of tillers increased by 38.5 when the plant height and average weight per plant were equivalent, that is, the number of tillers could be effectively increased without reducing the plant height and average weight per plant. Even, the plant height, average weight per plant and the number of tillers in Example 1 are all improved compared to Comparative Example 1, and the improvement of the tiller rate means that the number of tillers per plant increases. Therefore, a kind of improvement of the number of tillers of the king grass of the present invention increases. The planting method can generally increase the annual yield per mu.

2. The actual observation test of Example 1 and Comparative Example 1

In Example 1 and Comparative Example 1, 10 plants were randomly selected during each cutting to measure the number of tillers, plant height and average weight per plant. The specific observation data are shown in Table 2:

Table 2 Example 1 Comparative example 1 tiller number, plant height, average unit weight data of each cutting

As can be seen from Table 2, under the premise that the mowing time and times of Example 1 and Comparative Example 1 are the same, the situation of plant height and average weight per plant is equivalent, but the number of tillers in Example 1 is significantly higher than that of Comparative Example 1. Obviously, the increase in tiller number in Example 1 is due to the spraying of vitamin C with a concentration of 5% and 6-BA of 4 mg/L after each cutting. It can be seen that after each cutting, spraying vitamin C and 6-BA, can effectively improve the tillering rate of king grass.

3. Influence test of vitamin C and 6-BA

In Example 1, under the condition that other conditions remain unchanged, the amount of vitamin C and 6-BA sprayed after each cutting in step 5) was changed, and the growth conditions after each change were randomly selected for measurement, and the number of tillers is the total of the whole year, the plant height is the average value of the whole year, and the average unit weight is the average value of the whole year. The specific observation data are shown in Table 3:

Table 3 Data of tiller number, plant height and average unit weight of different amounts of vitamin C and 6-BA

It can be seen from Table 3 that when the concentration of vitamin C is 4% and 5%, and the concentration of 6-BA is 4 mg/L and 5 mg/L, the number of tillers is the highest. The analysis shows that vitamin C is a catalyst for promoting the secretion of 6-BA, and only when the proportion of vitamin C and 6-BA is a certain ratio has a significant effect.

4. Influence test of urea and NPK compound fertilizer

In Example 1, under the condition that other conditions remain unchanged, the fertilization ratio of urea and NPK compound fertilizer was changed, and the growth situation after each change was randomly selected for measurement, the number of tillers was the sum of the whole year, and the plant height was the whole year. The average weight per plant is the average of the whole year. The specific observation data are shown in Table 4:

Table 4 Data of tiller number, plant height and average unit weight under different proportions of urea and NPK compound fertilizers

As can be seen from Table 4, the effect of different ratios of urea and NPK ^compound fertilizer ^on the number of tillers, plant height, and average weight per plant is not very large. Therefore, urea and NPK compound fertilizer are only an auxiliary condition, under this condition, vitamin C and 6-BA can play a better role, and achieve the effect of increasing the number of tillers and the tiller rate.

To sum up, using the planting method for improving the tiller number of king grass provided by the present invention, urea and NPK compound fertilizer are sprayed with vitamin C and 6-BA after each cutting under the condition of fertilization amount assistance, Under the interaction of vitamin C and 6-BA, it can effectively increase the number of tillers and the tiller rate, so that it can effectively increase the number of tillers and improve the tiller rate of king grass without reducing the plant height and average weight per plant. , which can generally increase the annual yield per mu.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the present invention. within the scope of protection.

Claims (5)

1. A planting method for increasing the tillering number of wangcao is characterized by comprising the following steps:

1) removing impurities: spraying a 10% glyphosate aqueous solution with water 2 days before planting, wherein the ratio of the glyphosate aqueous solution to the water is 1: 50-75;

2) fertilizing: applying 500 kg-1000 kg of organic fertilizer and 10 kg-15 kg of phosphate fertilizer as base fertilizer per mu;

3) planting: cutting off the middle lower part of the stem of the king grass seedling by a cutter to ensure that 2-4 well-developed bud eyes are reserved on each section, ditching, horizontally planting the seed stem in a ditch, and covering soil and treading down;

4) and (4) mowing: carrying out first mowing after planting for 91-100 days, keeping stubbles for 4-5 cm, and mowing every 32-45 days after the first mowing;

5) management: and (3) applying fertilizer by adopting urea and NPK compound fertilizer after each cutting, wherein the ratio of the urea to the NPK compound fertilizer is 1: 0.4-0.5, and spraying vitamin C with the concentration of 4-5% and 6-BA with the concentration of 4-5 mg/L after each mowing.

2. The planting method for increasing the tillering number of the wangcao according to claim 1, wherein in the step 1), the ratio of the glyphosate water agent to the blended water is 1: 50.

3. the planting method for increasing the tillering number of the wang grass according to claim 1, wherein in the step 3), the depth of the furrow is 10cm to 14cm, the width of the furrow is 20cm to 28cm, the plant row spacing is 80cm to 85cm to 50cm to 55cm, and the thickness of the planted covering soil and the trampled soil is 1cm to 4 cm.

4. The planting method for improving the tillering number of the wangcao according to claim 1, characterized in that in the step 4), the mowing is carried out every 32 days after the first mowing, the mowing frequency is 7-10 times, and in the step 5), the ratio of urea to NPK compound fertilizer is 1: 0.5, spraying 5% of vitamin C and 4mg/L of 6-BA after each cutting.

5. The planting method for increasing the tillering number of the wangcao according to claim 1, is suitable for planting in 4 months per year in the areas of Hainan, Guangdong, Guangxi, Fujian and Taiwan, and cutting in 4 months of the next year.