NL2034717B1 - High-yield cultivation method for oat forage - Google Patents
High-yield cultivation method for oat forage Download PDFInfo
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- zhongcao
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- 238000012364 cultivation method Methods 0.000 title claims abstract description 27
- 239000004459 forage Substances 0.000 title abstract description 12
- 235000007319 Avena orientalis Nutrition 0.000 claims abstract description 66
- 241000209761 Avena Species 0.000 claims abstract description 52
- 238000009331 sowing Methods 0.000 claims abstract description 40
- 239000003337 fertilizer Substances 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 6
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 4
- 239000004202 carbamide Substances 0.000 claims description 4
- 102000007990 Organic Anion Transporters Human genes 0.000 claims 1
- 108010089503 Organic Anion Transporters Proteins 0.000 claims 1
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 claims 1
- 238000005507 spraying Methods 0.000 claims 1
- 238000003973 irrigation Methods 0.000 abstract description 18
- 230000002262 irrigation Effects 0.000 abstract description 18
- 244000075850 Avena orientalis Species 0.000 abstract description 14
- 238000011161 development Methods 0.000 abstract description 2
- 230000018109 developmental process Effects 0.000 abstract description 2
- 230000007226 seed germination Effects 0.000 abstract description 2
- 244000025254 Cannabis sativa Species 0.000 description 19
- 238000012360 testing method Methods 0.000 description 15
- 239000002689 soil Substances 0.000 description 13
- 238000001556 precipitation Methods 0.000 description 10
- 238000005520 cutting process Methods 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000002585 base Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 4
- 238000007605 air drying Methods 0.000 description 4
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- 244000223760 Cinnamomum zeylanicum Species 0.000 description 3
- 235000017803 cinnamon Nutrition 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000005696 Diammonium phosphate Substances 0.000 description 2
- 241001494479 Pecora Species 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 2
- 229910000388 diammonium phosphate Inorganic materials 0.000 description 2
- 235000019838 diammonium phosphate Nutrition 0.000 description 2
- 210000003608 fece Anatomy 0.000 description 2
- 239000010871 livestock manure Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 235000004035 Cryptotaenia japonica Nutrition 0.000 description 1
- VCUFZILGIRCDQQ-KRWDZBQOSA-N N-[[(5S)-2-oxo-3-(2-oxo-3H-1,3-benzoxazol-6-yl)-1,3-oxazolidin-5-yl]methyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C1O[C@H](CN1C1=CC2=C(NC(O2)=O)C=C1)CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F VCUFZILGIRCDQQ-KRWDZBQOSA-N 0.000 description 1
- 241000209504 Poaceae Species 0.000 description 1
- 102000007641 Trefoil Factors Human genes 0.000 description 1
- 235000015724 Trifolium pratense Nutrition 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000004720 fertilization Effects 0.000 description 1
- -1 nitrogen-phosphorus compound Chemical class 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
- A01G22/20—Cereals
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C21/00—Methods of fertilising, sowing or planting
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Botany (AREA)
- Environmental Sciences (AREA)
- Cultivation Of Plants (AREA)
Abstract
The present invention belongs to the technical field of cultivation and more particularly relates to a high-yield cultivation method for oat forage. In the present invention, the oats are sowed using an annual sowing method. By defining sowing time and rationally controlling a sowing amount, a sowing row spacing, an application amount of a seed fertilizer, and an irrigation amount, seed germination of the oats is promoted, rhizome growth thereof is accelerated, and tillering ability thereof is enhanced, thus facilitating growth and development of the oats, obtaining a higher biological yield, and improving a yield of oat forage.
Description
HIGH-YIELD CULTIVATION METHOD FOR OAT FORAGE
[01] The present invention belongs to the technical field of cultivation and more particularly relates to a high-yield cultivation method for oat forage.
[02] The oat, formally named Avena L., is an annual crop of Poaceae and is widely grown around the world. As a dual-purpose crop, oats have the advantages of cold and drought resistance, barren tolerance, and moderate saline-alkali tolerance, and thus plays an important role in agriculture-stock production. At present, oats are cultivated mainly by single cropping and spring sowing. A single cropping pattern causes farmland waste to some extent and a specific cropping method is not easy to grasp.
Therefore, it is still a problem to be solved to provide a high-yield and high-quality cultivation method for oat forage in the industry.
[03] The present invention provides a cultivation method for oat forage to cultivate oat forage of high quality and high yield.
[04] The present invention provides a high-yield cultivation method for oat forage, including:
[05] sowing oats using an annual sowing method, and applying a seed fertilizer when sowing the oats; the oats being sowed from April 23 to May 21 in an amount of 6 kg/667 m? to 14 kg/667 m? with a row spacing of 10 cm to 30 cm; the seed fertilizer being applied in an amount of 0 kg/667 m? to 8 kg/667 m?;
[06] irrigating the oats 3 days to 5 days before a tillering stage, 3 days to 5 days before a jointing stage, and 3 days to 5 days before a heading stage in an amount of 0 m*/667 m? to 40 m°/667 m? each time; and
[07] applying a topdressing in an amount of 0 kg/667 m? to 7.5 kg/667 m? in the tillering stage of the oats.
[08] Preferably, the seed fertilizer includes a nitrogen-phosphorus compound fertilizer, where N: P2Os is 18: 46; the topdressing includes urea.
[09] Preferably, the cultivation method further includes: applying a base fertilizer in an amount of 1200 kg/667 m? before sowing the oats.
[10] Preferably, soil types of a cultivation site of the oats include meadow soil and/or gray cinnamon soil.
[11] Preferably, the oats include one or two of Zhongcao 17 and Zhongcao 22.
[12] Preferably, in the case that the oats are Zhongcao 17 and annual precipitation is more than or equal to 400 mm, the oats are sowed on April 23 in an amount of 10 kg/667 m? with a row spacing of 15 cm, the oats are irrigated in an amount of 0 m°/667 m? each time, the seed fertilizer is applied in an amount of 6 kg/667 m? and the topdressing is applied in an amount of 2.5 kg/667 m2.
[13] In the case that the oats are Zhongcao 17 and the annual precipitation is less than 400 mm, the oats are sowed on May 7 in an amount of 6 kg/667 m? with a row spacing of 30 cm, the oats are irrigated in an amount of 10 m*/667 m? each time, the seed fertilizer is applied in an amount of 5 kg/667 m?, and the topdressing is applied in an amount of 2.5 kg/667 m?.
[14] Preferably, in the case that the oats are Zhongcao 22 and the annual precipitation is more than or equal to 400 mm, the oats are sowed on May 7 in an amount of 14 kg/667 m? with a row spacing of 15 cm, the oats are irrigated in an amount of 0 m°/667 m? each time, the seed fertilizer is applied in an amount of 7 kg/667 m?, and the topdressing is applied in an amount of 6 kg/667 m?.
[15] In the case that the oats are Zhongcao 22 and the annual precipitation is less than 400 mm, the oats are sowed on May 7 in an amount of 14 kg/667 m? with a row spacing of 15cm, the oats are irrigated in an amount of 20 m*/667 m? each time, the seed fertilizer is applied in an amount of 7 kg/667 m?, and the topdressing is applied in an amount of 6 kg/667 m?.
[16] The present invention provides a high-yield and high-quality cultivation method for oat forage. The oats are sowed using the annual sowing method from April 23 to May 21. By rationally controlling a sowing amount, a sowing row spacing, an application amount of the seed fertilizer, and an irrigation amount, seed germination of the oats is promoted, rhizome growth thereof is accelerated, and tillering ability thereof 1s enhanced, thus facilitating growth and development of the oats, obtaining a higher biological yield, and improving a yield and quality of oat forage.
[17] In order to further illustrate the present invention, technical solutions of the present invention will be described in detail with reference to the drawings and embodiments, but should not be considered as limiting the scope of the present invention.
[18] Example 1
[19] 1. Test site: Shaerqin Test Demonstration Base, Institute of Grassland Research of Chinese Academy of Agricultural Sciences. Main soil types thereof are meadow soil and gray cinnamon soil. The soil has a salt content of 1.1 g/kg, a pH value of 9.07, an organic matter of 10.5 g/kg, an available nitrogen of 58.8 mg/kg, an available phosphorus of 28 mg/kg, and an available potassium of 230 mg/kg. The soil is salinized and irrigation available.
[20] 2. A high-yield cultivation method for oats includes the following steps.
[21] (1) On April 16, 2020, sheep manure in an amount of 1200 kg/667 m? was applied as a base fertilizer at the test site. The test site was divided into 225 sub-areas, each with an area of 15 m?, and oat forage was cultivated in each sub-area.
[22] (2) Zhongcao 17 was sowed on April 23, 2020, with a sowing density of 10 kg/667 m? and a sowing row spacing of 15 cm. Diammonium phosphate in an amount of 6 kg/667 m2 was applied with seed dressing while sowing. The sowing was repeated 2 times for a total of 10 sub-areas.
[23] (3) Urea in an amount of 2.5 kg/667 m? was applied at a tillering stage of
Zhongcao 17, and Zhongcao 17 was sprinkled for about 12 hours on the same day after being sowed to ensure the emergence. Zhongcao 17 was irrigated during the growth period, specifically 3 days to 5 days before the tillering stage, 3 days to 5 days before a jointing stag, and 3 days to 5 days before a heading stage in an amount of 0 m*/667 m? each time.
[4] Examples 2 to 25
[25] The oats were cultivated according to the cultivation method in Example 1, with differences in the sowing time, the sowing density, the sowing row spacing, and the application amount of the seed fertilizer in step (2), and the topdressing amount and the irrigation amount in step (3) during the cultivation, as shown in Table 1 below.
[26] Table 1 Cultivation Conditions of Zhongcao 17 in Examples 1 to 25 in 2020
Sowing | Sowing | Irrigation | amount of
Topdressing
Processing density row amount seed
Sowing time amount mode (kg/667 | spacing | (m*/667 | fertilizer ‚ (kg/667 m*) m?) (cm) m?) (kg/667 m?) 23 April
Example 1 10 15 2.5 2020 23 April
Example 2 10 2020 23 April
Example 3 12 30 20 7 7.5 2020 23 April
Example 4 14 20 10 4 2020 23 April
Example 5 25 40 5 2020
April
Example 6 14 30 40 6 0 2020
EE
30 April
Example 8 10 20 25 2020 30 April
Example 9 20 30 7 2020
Example 30 April 12 15 5 4 2020
Example 7 May 2020 14 15 11
Example 7 May 2020 10 10 40 7 4 12
Example 7 May 2020 12 25 30 8 0 13
Example 7 May 2020 20 7.5 14
Example 7 May 2020 30 10 5 2.5
Example 14 May 2020 10 20 20 5 16
Example 14 May 2020 15 40 7.5 17
Example 14 May 2020 14 25 7 2.5 18
Example 14 May 2020 30 30 0 4 19
Example 14 May 2020 12 10 10 6
Example 21 May 2020 10 30 21 fre] = 21 May 2020 12 20 40 0 25 22 nom) nn 3 21 May 2020 14 10 30 5 7.5 ae [oo 21 May 2020 15 10 7 0 24 fre] 0 [oee | + 21 May 2020 25 20 4 25
[27] Note: Zhongcao 17 was irrigated 3 times: 3 days to 5 days before the tillering stage, 3 days to 5 days before the jointing stage, and 3 days to 5 days before the heading stage. The irrigation amount in the table was the irrigation amount each time.
The irrigation amount of 0 indicated no irrigation during the whole growth period and that the water supply came from natural precipitation.
[28] Test Example 1
[29] (1) In Examples 1 to 25, Zhongcao 17 was cut at a late heading stage and an early flowering stage with 5 cm of stubble. When cutting, plants within 50 cm at both sides and both ends of the sub-area were removed, and a fresh grass yield of the sub-area was calculated after cutting and weighing. The harvested fresh grass was placed in a cool and ventilated place for air drying. When the water content was reduced to about 12%, hay was weighed, and the results are shown in Tables 2 to 3.
[30] Table 2 Fresh Grass Yield (kg/667 m?) of Zhongcao 17 by Cultivation Method in Examples 1 to 25
Example 9 Example 19 Example 24
[31] Note: values in the table are averages of yields of 2 sub-areas.
[32] Table 3 Hay Yield (kg/667 m?) of Zhongcao 17 by Cultivation Method in
Examples 1 to 25
Example 16 Example 21
[33] Note: values in the table are averages of yields of 2 sub-areas.
[34] According to statistics, the precipitation in the test site in 2020 was sufficient with annual precipitation of 400.40 mm, where the precipitation from May to August was 23.50 mm to 141.10 mm. According to Tables 2 to 3, the optimum cultivation conditions of Zhongcao 17 were in Example 1, i.e, Zhongcao 17 was sowed on April 23 with a density of 10 kg/667 m? and a row spacing of 15cm, and was irrigated 3 days to 5 days before the tillering stage, 3 days to 5 days before the jointing stage, and 3 days to 5 days before the heading stage in an amount of 0 m*/667 m? each time; the seed fertilizer in an amount of 6 kg/667 m? and the topdressing in an amount of 2.5 kg/667 m? were applied; and the fresh grass yield and the hay yield were 2024.35 kg/667 m? and 970.98 kg/667 m}, respectively.
[35] Example 26
[36] 1. Test site: Shaerqin Test Demonstration Base, Institute of Grassland Research of Chinese Academy of Agricultural Sciences. Main soil types thereof are meadow soil and gray cinnamon soil. The soil has a salt content of 1.1 g/kg, a pH value of 9.07, an organic matter of 10.5 g/kg, an available nitrogen of 58.8 mg/kg, an available phosphorus of 28 mg/kg, and an available potassium of 230 mg/kg. The soil is salinized and irrigation available.
[37] 2. A cultivation method for oats includes the following steps.
[38] (1) On April 16, 2021, sheep manure in an amount of 1200 kg/667 m? was applied as a base fertilizer at the test site. The test site was divided into 125 sub-areas, each with an area of 15 m?, and oat forage was cultivated in each sub-area.
[39] (2) Zhongcao 17 was sowed on April 30, 2021, with a sowing density of 12 kg/667 m? and a sowing row spacing of 15 cm. Diammonium phosphate in an amount of 5kg/667 m? was applied with seed dressing while sowing. The sowing was repeated once for a total of 5 sub-areas.
[40] (3) In 2021, the test site was drier. Urea in an amount of 4 kg/667 m? was applied at the tillering stage of Zhongcao 17, and Zhongcao 17 was sprinkled for about 12 hours to ensure the emergence. During the growth period, no irrigation was performed and the water supply came from natural precipitation.
[41] Examples 27 to 50
[42] The oats were cultivated according to the cultivation method in Example 26, with differences in the sowing time, the sowing density, the sowing row spacing, and the application amount of the seed fertilizer in step (2), and the topdressing amount and the irrigation amount in step (3) during the cultivation, as shown in Table 4 below.
[43] Table 4 Cultivation Conditions of Zhongcao 17 in Examples 26 to 50 in 2021
Sowing | Sowing | Irrigation | amount of
Topdressing
Processing density row amount seed
Sowing time amount mode (kg/667 | spacing | (m’/667 fertilizer (kg/667 m?) m?) (cm) m?) (kg/667 m?)
Example 30 April 12 15 5 4 26 2021
Example 23 April 0 0 27 2021
Example 7 May 2021 20 7.5 28
Example 14 May 14 25 7 2.5 29 2021
Example 21 May 10 30 6 30 2021
Example 23 April 14 20 10 4 31 2021
Example 30 April 10 25 10 7.5 32 2021
Example 7 May 2021 30 10 5 25 33
Example 14 May 12 10 10 6 34 2021
Example 21 May 10 7 2021
Example 23 April 12 30 20 7 7.5 36 2021
Example 30 April 10 20 8 25 37 2021
Example 7 May 2021 14 15 20 7 38
Example 14 May 10 20 20 5 39 2021
Example | Mw | 6 | 3 | 0 | 6 | +
Ce Te
Example 23 April 10 15 30 6 2.5 41 2021
Example 30 April 20 30 7 42 2021
Example 7 May 2021 12 25 30 43
Example 14 May 30 30 4 44 2021
Example 21 May 10 10 30 5 7.5 45 2021
Example 23 April 25 40 5 6 46 2021
Example 30 April 14 30 40 0 47 2021
Example 7 May 2021 10 10 40 7 4 48
Example 14 May 10 40 7.5 49 2021
Example 21 May 12 20 40 2.5 50 2021
[44] Note: during the whole growth period, Zhongcao 17 was irrigated 3 times from a trefoil stage to a cutting stage: 3 days to 5 days before the tillering stage, 3 days to 5 days before the jointing stage, and 3 days to 5 days before the heading stage. The irrigation amount in the table was the irrigation amount each time. The irrigation amount of 0 indicated no irrigation during the whole growth period and that the water supply came from natural precipitation.
[45] Test Example 2
[46] (1) In Examples 26 to 50, fresh grass of Zhongcao 17 was cut at the late heading stage and the early flowering stage with 5 cm of stubble. When cutting, plants within 50 cm at both sides and both ends of the sub-area were removed, and the fresh grass yield of the sub-area was calculated after cutting and weighing. The harvested fresh grass was placed in a cool and ventilated place for air drying. When the water content was reduced to about 12%, the hay was weighed, and the results are shown in
Tables 5 to 6.
[47] Table 5 Fresh Grass Yield (kg/667 m?) of Zhongcao 17 by Cultivation Method in Examples 26 to 50 2041.02 1800.90 1985.44 2178.87
Example 40 | Example 45 Example 50
[48] Note: values in the table are yields of 1 sub-area.
[49] Table 6 Hay Yield (kg/667 m?) of Zhongcao 17 by Cultivation Method in
Examples 26 to 50
Example 32 Example 42 Example 47 658.86 717.47 780.68
[50] Note: values in the table are the yields of 1 sub-area.
[51] According to statistics, in 2021, the optimum cultivation conditions of
Zhongcao 17 were in Example 33, i.e, Zhongcao 17 was sowed on May 7 with a density of 6 kg/667 m? and a row spacing of 30 cm, and was irrigated 3 days to 5 days before the tillering stage, 3 days to 5 days before the jointing stage, and 3 days to 5 days before the heading stage in an amount of 10 m°/667 m? each time; the seed fertilizer in an amount of 5 kg/667 m? and the topdressing in an amount of 2.5 kg/667 m? were applied; and the fresh grass yield and the hay yield were 3130.15 kg/667 m? and 1062.66 kg/667 m?, respectively.
[52] Examples 51to 75
[53] The cultivation method in Examples 51 to 75 was the same as that in Examples 1 to 25 (cultivated in 2020), with the difference in that Zhongcao 17 was replaced with
Zhongcao 22, and other conditions were unchanged.
[54] Test Example 3
[55] (1) In Examples 51 to 75, fresh grass of Zhongcao 22 was cut at the late heading stage and the early flowering stage with 5 cm of stubble. When cutting, plants within 50 cm at both sides and both ends of the sub-area were removed, and the fresh grass yield of the sub-area was calculated after cutting and weighing. The harvested fresh grass was placed in a cool and ventilated place for air drying. When the water content was reduced to about 12%, the hay was weighed, and the results are shown in
Tables 7 to 8.
[56] Table 7 Fresh Grass Yield (kg/667 m?) of Zhongcao 22 by Cultivation Method in Examples 51 to 75
2589.32 2242 83 1405.70 [S7] Note: values in the table are averages of yields of 2 sub-areas.
[58] Table 8 Hay Yield (kg/667 m?) of Zhongcao 22 by Cultivation Method in
Examples 51 to 75
Example 64 | Example 69 Example 74 849.12 437.95 892.01 [S9] Note: values in the table are the averages of yields of 2 sub-areas.
[60] According to statistics, in 2020, the optimum cultivation conditions of
Zhongcao 22 were in Example 61, i.e, Zhongcao 17 was sowed on May 7 with a density of 14 kg/667 m? and a row spacing of 15 cm, and was irrigated 3 days to 5 days before the tillering stage, 3 days to 5 days before the jointing stage, and 3 days to
S days before the heading stage in an amount of 0 m?/667 m? each time; the seed fertilizer in an amount of 7 kg/667 m? and the topdressing in an amount of 6 kg/667 m? were applied; and the fresh grass yield and the hay yield were 2606.06 kg/667 m? and 896.75 kg/667 m}, respectively.
[61] Examples 76 to 100
[62] The cultivation method in Examples 76 to 100 was the same as that in
Examples 26 to 50 (cultivated in 2021), with the difference in that Zhongcao 17 was replaced with Zhongcao 22, and other conditions were unchanged.
[63] Test Example 4
[64] (1) In Examples 76 to 100, fresh grass of Zhongcao 22 was cut at the late heading stage and the early flowering stage with 5 cm of stubble. When cutting, plants within 50 cm at both sides and both ends of the sub-area were removed, and the fresh grass yield of the sub-area was calculated after cutting and weighing. The harvested fresh grass was placed in a cool and ventilated place for air drying. When the water content was reduced to about 12%, the hay was weighed, and the results are shown in
Tables 9 to 10.
[65] Table 9 Fresh grass yield (kg/667 m?) of Zhongcao 22 by Cultivation Method in Examples 76 to 100
Example 95 Example 100 1903.17 2387.86 1845.37
[66] Note: values in the table are yields of 1 sub-area.
[67] Table 10 Hay Yield (kg/667 m*) of Zhongcao 22 by Cultivation Method in
Examples 76 to 100
[68] Note: values in the table are the yields of 1 sub-area.
[69] According to statistics, in 2021, the optimum cultivation conditions of
Zhongcao 22 were in Example 88, i.e., Zhongcao 22 was sowed on May 7 with a density of 14 kg/667 m? and a row spacing of 15 cm, and was irrigated 3 days to 5 days before the tillering stage, 3 days to 5 days before the jointing stage, and 3 days to 5 days before the heading stage in an amount of 20 m*/667 m? each time; the seed fertilizer in an amount of 7 kg/667 m? and the topdressing in an amount of 6 kg/667 m? were applied; and the fresh grass yield and the hay yield were 3210.39 kg/667 m? and 1055.67 kg/667 m?, respectively.
[70] According to the above examples, in the present invention, by 6-factor and 5-level orthogonal test research on original oat types of Zhongcao 17 and Zhongcao 22, the optimal combination scheme and main influence factors of management indexes such as the sowing time, the sowing density, the sowing row spacing, the irrigation, and the fertilization of oat mowing hay were obtained, and regulation ways of different factors for high-yield cultivation for oats were clarified. The optimal sowing date was
April 23 and May 7, the sowing amount was 6 kg/667 m? 10 kg/667 m?, and 14 kg/667 m?, the row spacing was 15 cm and 30 cm, the seed fertilizer in an amount of 5 kg/667 m? to 7 kg/667 m? was applied, and the topdressing in an amount of 2.5 kg/667 m? to 6 kg/667 m? was applied at the tillering stage. In a drought year, the oats were irrigated 3 times at the tillering stage, the jointing stage, and the heading stage in an amount of 10 m3 to 20 m’ each time. The highest yield was 896.75 kg/667 m? to
1062.66 kg/667 m?, increased by 41.74% to 57.25%, and the production performance was the best. The technical solutions of the present invention are suitable for promotion and utilization in Inner Mongolia and adjacent provinces and regions in
China.
[71] Although the present invention has been described in detail with reference to embodiments, embodiments are only part of, but not all embodiments of the present invention. Other embodiments may also be obtained without making any inventive efforts according to the present invention, which are within the scope of protection of the present invention.
Claims (5)
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| CN111543263A (en) * | 2020-05-09 | 2020-08-18 | 内蒙古农业大学 | Biological improvement method for moderate and mild saline-alkali soil of inner Mongolia |
| CN111657078B (en) * | 2020-05-29 | 2021-12-28 | 河南省饲草饲料站 | Forage grass high-yield rotation method in Huang-Huai-Hai region |
| CN115777461A (en) * | 2022-11-01 | 2023-03-14 | 河北省农林科学院农业资源环境研究所 | Efficient planting mode suitable for two harvests of Huang-Huai-Hai plain corns every year |
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