Method for efficiently planting zizania aquatica in winter fallow field

Abstract

The invention provides a method for efficiently planting zizania latifolia in a winter fallow field, and aims to solve the problems that in the prior art, when the zizania latifolia is planted in the winter fallow field, appropriate variety and planting mode of the zizania latifolia are not clear yet, and zizania latifolia seedlings grow slowly and the yield is reduced due to the fact that the zizania latifolia seedlings are affected by late spring coldness. The invention discloses a method for efficiently planting zizania aquatica in a winter fallow field. Seed selection; selecting Zhejiang zizania aquatica No. 8 or Longzania aquatica No. 2; accelerating germination; collecting upright stems of thick and strong tillering plants on the zizania aquatica and accelerating germination by using a nutrient solution; field planting is conducted when seedlings are 15 cm high, the field planting row spacing is 0.8-1 m, and the plant spacing is 20-30 cm; 5-10 days after final singling, a 0.003% propionyl brassinolide 5000-fold solution is sprayed to leaves of the zizania aquatica seedlings. According to the method, through the modes of excellent variety screening, strong tillering upright stem nutrient solution germination accelerating, planting density optimization, propionyl brassinolide treatment and the like, the increase of the seedling propagation coefficient of the upright stems of the zizania aquatica can be effectively promoted, and the cold resistance of the zizania aquatica in the seedling stage can be effectively improved.

Description

Technical Field

[0001] The invention belongs to the technical field of wild rice stem planting, and particularly relates to a method for efficiently planting wild rice stem using fallow fields in winter. Background Art

[0002] Zizania latifolia is a perennial aquatic herb of the genus Zizania in the Poaceae family. It is also known as Zizania shoots, Zizania melon, Zizania shoots, and green knots. It is rich in free amino acids, soluble sugars, and vitamin C, and is one of my country's important specialty aquatic vegetables. The large-scale production areas of Zizania latifolia are mainly in Zhejiang, Anhui, Fujian, Guizhou, Yunnan, Jiangsu, Shanghai and other provinces and cities, with an annual planting area of ​​about 1.1 million mu.

[0003] At present, the main methods of wild rice cultivation are the double-season wild rice cultivation mode of "one crop with two harvests" and the single-season wild rice cultivation mode of "one crop with one harvest". The growth cycle of double-season wild rice is usually planted from July to August, harvested for the first time from October to November, the above-ground part is cut off in December, and the second harvest is from May to June of the following year. The planting time of single-season wild rice is more concentrated, usually planted from April to May, and harvested from September to October. The specific time is slightly adjusted due to climatic conditions and regional differences.

[0004] After the single-season water chestnut is harvested, or after some other crops are harvested in summer and autumn, these fields will be idle in winter. Therefore, in order to improve the utilization rate of winter idle fields and increase farmers' benefits, water chestnuts can be planted in these winter idle fields. However, this method has the following problems that need to be solved: First, the idle time of winter idle fields is short. The time from planting to harvesting of water chestnuts is only 4 months. The insufficient number of effective tillers per unit area can easily lead to reduced yields, and the varieties and planting methods suitable for this model are not yet clear; second, the water chestnut seedlings in spring are easily affected by the "late spring cold", which leads to slow growth and reduced yields. Summary of the invention

[0005] The invention provides a method for efficiently planting wild rice stems in fallow winter fields, aiming to solve the problems in the prior art that suitable wild rice stem varieties and planting methods are still unclear when planting wild rice stems in fallow winter fields, and that wild rice stem seedlings in spring are affected by 'late spring cold', resulting in slow growth and reduced yield.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A method for efficiently planting wild rice stems using winter fallow fields, comprising:

[0008] Field preparation: ploughing should be carried out in late November, fertilization should be carried out before ploughing, and a 5cm to 10cm water layer should be kept in the field after ploughing for standby use;

[0009] Selection of seeds: Choose 'Zhejiao No. 8' or 'Longjiao No. 2';

[0010] Germination with nutrient solution: 7-10 days after the wild rice is harvested, collect the strong tillering upright stems on the wild rice. When collecting, cut the upright stems 2 cm below the soil surface, peel off the leaf sheaths wrapped around the upright stems, and float the upright stems in a 10 cm water layer in the seedbed for germination;

[0011] Planting: After the seedlings are 15cm tall, select strong seedlings for planting. The row spacing is 0.8m to 1m and the plant spacing is 20cm to 30cm.

[0012] Thinning and finalizing seedlings: 5-7 days after film removal, thinning and finalizing seedlings;

[0013] Cold resistance treatment: 5-10 days after transplanting, spray the leaves of wild rice seedlings with 5000 times dilution of 0.003% propionyl brassinolide;

[0014] Management during the rice seedling stage: After the peak tillering period, keep the field water level at 5 cm and leave the field in time;

[0015] Harvesting: During the harvesting period of wild rice stem, keep the water level at 10cm to 15cm.

[0016] A further solution is to apply 1000kg to 1500kg of commercial organic fertilizer or 100kg to 150kg of decomposed rapeseed cake per mu before tilling the land, and also apply 50kg of ammonium bicarbonate and 25kg of calcium magnesium phosphate fertilizer per mu.

[0017] Further solution: In the seed selection step, select the double-season water chestnut varieties 'Zhe Jiao 8' or 'Long Jiao 2' with vigorous growth in the early stage and excellent water chestnut quality.

[0018] Further solution: In the nutrient solution germination step, 7 to 10 days after the wild rice is harvested, the thick tillering upright stems on the wild rice are collected. When collecting, the upright stems are cut off 2 cm below the soil surface, and the leaf sheaths wrapped around the upright stems are peeled off. The upright stems are soaked in 5000 times of 0.02% dihydrochlorin iron solution and 800 times of 70% methyl thiophanate solution for 10 minutes. After being spread out for 12 hours, the upright stems are floated in a 10 cm water layer in a seedling bed for germination. Every 667m 2 Evenly pour 20 kg of N~P2O5-K2O=15-15-15 water-soluble fertilizer into the water layer of the seedbed.

[0019] Based on the above technical solution: the above germination treatment method is beneficial to the growth of wild rice seedlings.

[0020] A further solution: in the planting step, the row spacing for planting the seedlings is 0.8m to 1m, and the plant spacing is 20cm, 30cm or 40cm.

[0021] Based on the above technical solutions: Dense planting can increase the yield of water bamboo, and it is an optimal solution to plant water bamboo in winter fallow fields with a plant spacing of 20 cm and 30 cm.

[0022] Further solution: In the step of field planting, plant 5 to 7 days after uncovering the film. When planting, transplant with upright stems, 2 to 3 seedlings per hole, and press the upright stems 2 to 3 cm below the soil surface.

[0023] Further solution: In the steps of covering and uncovering the small arch shed film, 3 to 5 days after field planting, build a small arch shed with a height of 80 cm to 120 cm and a width of 70 cm to 100 cm, cover it with a 3-mil non-drip long-life film, and make a hole with a diameter of 0.7 cm to 1.0 cm every 2 m.

[0024] Based on the above technical solutions: Covering the small arch shed with film can increase the environmental temperature and promote the growth of water bamboo seedlings and tiller formation; punching holes in the film can increase the air content in the small arch shed and avoid leaf burns caused by excessive afternoon temperature.

[0025] Further solution: In the steps of covering and uncovering the small arch shed film, when the seedling height is 30 cm to 40 cm, harden the seedlings for 2 to 3 days on cloudy or sunny days and then uncover the film, and immediately irrigate with 3 to 5 cm of shallow water; 3 to 5 days after uncovering the film, apply 25 kg to 30 kg of compound fertilizer per mu.

[0026] Further solution: In the step of thinning and finalizing seedlings, keep 10 to 15 strong-growing seedlings around each water bamboo clump.

[0027] Further solution: In the step of thinning and finalizing seedlings, 10 to 15 days after finalizing the seedlings, apply 25 kg to 30 kg of compound fertilizer per mu; during the period of thinning and finalizing seedlings, keep the water level at about 5 cm; prevent diseases once after finalizing the seedlings.

[0028] Further solution: In the cold resistance treatment step, 5 to 10 days after finalizing the seedlings, spray 5000-fold solution of 0.003% propionyl brassinolide on the leaves of water bamboo seedlings during the period from 9:00 to 11:00 in the morning or from 3:30 to 5:30 in the afternoon on sunny days.

[0029] Further solution: After the full seedling stage, it also includes:

[0030] Pest control; Spray 3000-fold liquid of 25% propiconazole emulsifiable concentrate during the seedling stage, and spray 800-fold liquid of 80% total chelated mancozeb wettable powder 1 month before the water bamboo starts to form the edible part; Trap aphids and planthoppers with yellow sticky boards; Trap stem borers with sex attractants and insecticidal lamps, and 1 week after the stem borer eggs hatch, spray 1000-fold liquid of 0.3% azadirachtin emulsifiable concentrate or 750-fold liquid of Bacillus thuringiensis suspension with 8000 IU / μL.

[0031] Based on the above technical solution: carrying out insect prevention treatment can further increase the yield of wild rice stem.

[0032] Further plan: In the process of harvesting wild rice stem, after harvesting 1 to 2 times, apply 30kg to 35kg of potassium sulfate compound fertilizer per mu; apply 20kg to 30kg of compound fertilizer per mu again after an interval of about 10 days.

[0033] The beneficial effects of the present invention are:

[0034] In the present invention, the rice stem varieties of 'Zhejiao No. 8' or 'Longjiao No. 2' are selected during seed selection because both 'Zhejiao No. 8' and 'Longjiao No. 2' are rice stem varieties that have been proven by experiments to have high yield and good quality after being planted in winter fallow fields compared with other varieties; when raising seedlings, the thick tillering upright stems on the rice stems are collected for germination because the number of tillering seedlings of the thick tillering upright stems is large and the growth is uniform. Balance, thus increasing the yield of wild rice stem; during planting, experiments have shown that the yield of wild rice stem can be increased by setting the spacing between plants to 20cm and 30cm; after the seedlings are planted, spraying 5000 times of 0.003% propionyl brassinolide solution on the leaves of wild rice stem seedlings can improve the cold resistance of wild rice stem seedlings, thereby greatly reducing the impact of "late spring cold" on wild rice stem seedlings and increasing the yield of wild rice stem;

[0035] In summary, in the method of planting water bamboo using winter fallow fields, the present invention can effectively promote the improvement of the water bamboo upright stem seedling coefficient through the screening of excellent varieties, germination of thick tillering upright stems with nutrient solution, optimization of planting density and treatment with propionyl brassinolide, and can effectively improve the cold resistance of water bamboo seedlings, thereby increasing the yield of water bamboo planted in winter fallow fields and further increasing the economic benefits of farmland planting. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0037] Figure 1 It is a comparative schematic diagram of selecting the upright stems of the main stem plant and the upright stems of the sturdy tillering plant after planting in the present invention. DETAILED DESCRIPTION

[0038] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the present invention.

[0039] This embodiment provides a method for efficiently planting wild rice stems using fallow fields in winter, comprising:

[0040] Field preparation: ploughing should be carried out in late November, fertilization should be carried out before ploughing, and a 5cm to 10cm water layer should be kept in the field after ploughing for standby use;

[0041] Selection of seeds: Choose 'Zhejiao No. 8' or 'Longjiao No. 2';

[0042] Nutrient solution germination: When the harvest progress of the selected wild rice stems reaches 20% to 50%, collect the strong tillering upright stems on the wild rice stems for nutrient solution germination

[0043] Planting: After the seedlings are 15cm tall, select strong seedlings for planting. The row spacing is 0.8m to 1m and the plant spacing is 20cm to 30cm.

[0044] Covering and removing the film in a small arch shed: 3d to 5d after planting, build a small arch shed with a height of 80cm to 120cm and a width of 70cm to 100cm; when the seedlings are 30cm to 40cm tall, remove the film after hardening the seedlings for 2d to 3d on a cloudy or sunny day, and irrigate with shallow water of 3cm to 5cm in time;

[0045] Thinning and finalizing the seedlings: 5-7 days after removing the film, thinning and finalizing the seedlings;

[0046] Cold resistance treatment: 5-10 days after transplanting, spray the leaves of wild rice seedlings with 5000 times dilution of 0.003% propionyl brassinolide;

[0047] Management during the period of rice seedlings: After the peak tillering period, keep the water level in the field at 5 cm and leave the field in time; leaving the field in time is conducive to the downward growth of the plant roots and controls the excessive growth of the plant. When the stems of rice seedlings are flat and the rings of new leaves are gradually close, it has entered the period of rice seedlings;

[0048] Harvesting: During the harvesting period of wild rice stem, keep the water level at 10cm to 15cm.

[0049] In this embodiment, 'Zhejiao No. 8', 'Zhejiao No. 7', 'Ejiao No. 2' and 'Longjiao No. 2' were selected to carry out experiments according to the planting conditions of the winter fallow field in this embodiment. The results of the yield of the four varieties of wild rice stems are shown in Table 1: 'Zhejiao No. 8' was harvested early and had a high yield, with a yield of 2206.7kg / 667m 2The output value per mu was 10592 yuan, and its output and output value were 29.59% and 55.58% higher than those of 'Zhejiao No. 7' respectively; the output advantage of 'Longjiao No. 2' was very obvious, with an output of 2838.5 / 667m per mu. 2 The per mu output value was 9081 yuan, and its output and output value were 66.70% and 33.39% higher than those of 'Zhejiao No. 7'. Therefore, after experimental comparison, this embodiment selected 'Zhejiao No. 8' and 'Longjiao No. 2', which are high-yield varieties.

[0050] Table 1 Results of economic character examination of double-season Zizania latifolia varieties

[0051] Unit: kg / 667m 2 、Yuan / 667m 2

[0052]

[0053] In this embodiment, according to the nutrient solution germination conditions of this embodiment, the main stem upright stem and the thick tiller upright stem were selected for comparative experiments, and the results are shown in Table 2: the number of tillers of the main stem plant and the thick tiller plant were 2.2 / root and 3.6 / root respectively, and the number of tillers of the thick tiller plant increased by 63.64% compared with the main stem plant; the plant heights of the main stem plant and the thick tiller plant were 68.0cm and 71.4cm respectively, and the plant height of the thick tiller plant increased by 5.00% compared with the main stem plant. Figure 1 As shown ( Figure 1 The left side of the middle is the main stem plant, and the right side is the sturdy tiller plant). From the perspective of plant growth, the main stem upright stem has fewer tiller seedlings and uneven growth, while the sturdy tiller upright stem has more tiller seedlings and balanced growth. The experiment concluded that the selection of sturdy tiller upright stem propagation materials is more appropriate.

[0054] Table 2 Effects of propagation materials at different locations on tillering number and plant height of seedlings Unit: pieces / root, cm

[0055]

[0056] In this embodiment, different plant spacings will lead to different yields when planting wild rice stems. Therefore, according to the winter fallow field planting conditions in this embodiment, a wild rice stem planting density experiment with a row spacing of 1 m and plant spacings of 20 cm, 30 cm and 40 cm in each treatment was conducted. The results are shown in Table 3. The results show that the yield of 'Zhejiao No. 8' with a plant spacing of 20 cm and 30 cm increased by 806.1 kg / 667 m2 respectively compared with that of 40 cm. 2 582.2kg / 667m 2 Compared with the control treatment, the yield of 'Longjiao 2' increased by 820.4kg / 667m 2, 338.3 kg / 667 m² 2 . The above results show that the close planting treatments with row spacings of 20 cm and 30 cm can increase the yield of water bamboo. Therefore, it is advisable to use row spacings of 20 cm and 30 cm for water bamboo planting in winter fallow fields.

[0057] Table 3 Effects of Different Planting Densities on the Yield of Water Bamboo

[0058] Unit: kg / 667 m² 2

[0059]

[0060] In this embodiment, in the field preparation step, 1000 kg - 1500 kg of commercial organic fertilizer or 100 kg - 150 kg of decomposed rapeseed cake is applied per mu before plowing, and 50 kg of ammonium bicarbonate and 25 kg of calcium magnesium phosphate fertilizer are also applied per mu.

[0061] In this embodiment, in the nutrient solution germination acceleration step, 7 d - 10 d after the harvest of water bamboo, thick and strong tillering upright stems on the water bamboo are collected. When collecting, the upright stems are cut off 2 cm below the soil surface, and the leaf sheaths wrapped outside the upright stems are removed. The upright stems are soaked in a 5000-fold solution of 0.02% chlorophyllin iron and an 800-fold solution of 70% thiophanate-methyl for 10 min, and then the upright stems are floated in a 10-cm water layer seedbed containing water-soluble fertilizer for germination acceleration. In each 667 m² 2 20 kg of water-soluble fertilizer with N-P₂O₅-K₂O = 15-15-15 is evenly poured into the water layer of the seedbed.

[0062] In this embodiment, in the planting step, the row spacing for planting the seedlings is 0.8 m - 1 m, and the plant spacing is 20 cm, 30 cm or 40 cm. For water bamboo planting in winter fallow fields, the plant spacings of 20 cm and 30 cm are preferred options.

[0063] In this embodiment, in the planting step, the seedlings are planted 5 d - 7 d after uncovering the film. When planting, transplant with the upright stems, and it is a better option to have 2 - 3 seedlings per hole.

[0064] In this embodiment, in the small arch shed film covering and uncovering step, 3 d - 5 d after planting, a small arch shed with a height of 80 cm - 120 cm and a width of 70 cm - 100 cm is built, covered with a 3-mil non-drip long-life film. When the seedling height is 30 cm - 40 cm, it is a better option to uncover the film after hardening the seedlings for 2 d - 3 d on a cloudy or sunny day.

[0065] In this embodiment, in the thinning and finalizing step, 10 - 15 strong-growing seedlings are retained around each water bamboo clump. Specifically, 10 - 15 seedlings are evenly distributed around the water bamboo clump.

[0066] In this embodiment, in the thinning and finalizing step, in order to further increase the yield, 25-30 kg of compound fertilizer is applied per mu 10-15 days after finalizing; during the thinning and finalizing period, the water level is maintained at about 5 cm; and diseases are prevented once after finalizing.

[0067] In this embodiment, in the cold resistance treatment step, 5 to 10 days after the seedlings are transplanted, 5000 times of 0.003% propionyl brassinolide solution is sprayed on the leaves of the wild rice seedlings between 9:00 and 11:00 in the morning or between 3:30 and 5:30 in the afternoon on a sunny day.

[0068] In this embodiment, in order to further increase the yield of wild rice stem, after the full seedling stage, the method further includes:

[0069] Pest control: spray 3000 times diluted 25% propiconazole emulsifiable concentrate during the seedling stage, and 800 times diluted 80% fully complexed mancozeb wettable powder one month before pregnancy; kill aphids and plant hoppers by using yellow boards; kill stem borers by using sex attractants and insect-killing lamps, and one week after the hatching of stem borer eggs, spray 1000 times diluted 0.3% azadirachtin emulsifiable concentrate or 750 times diluted 8000IU / μl of Bacillus thuringiensis suspension.

[0070] In this embodiment, in the wild rice stem harvesting step, after harvesting once or twice, 30kg to 35kg of potassium sulfate compound fertilizer is applied per mu; and 20kg to 30kg of compound fertilizer is applied per mu again after an interval of about 10 days.

[0071] The present invention is not limited to the above optional implementation modes. Under the premise of not conflicting with each other, the various schemes can be combined arbitrarily. Anyone can derive other forms of products under the inspiration of the present invention. However, no matter what changes are made in their shapes or structures, all technical solutions that fall within the scope defined by the claims of the present invention fall within the protection scope of the present invention.

Claims

1. A method for efficiently planting wild rice stems using fallow fields in winter, characterized in that: include: Field preparation: ploughing should be carried out in late November, fertilization should be carried out before ploughing, and a 5cm to 10cm water layer should be kept in the field after ploughing for standby use; Selection of seeds: Choose 'Zhejiao No. 8' or 'Longjiao No. 2'; Germination with nutrient solution: When the harvest progress of the selected wild rice stems reaches 20% to 50%, collect the strong tillering upright stems on the wild rice stems for germination with nutrient solution; Planting: After the seedlings are 15cm tall, select strong seedlings for planting. The row spacing is 0.8m to 1m and the plant spacing is 20cm to 30cm. Covering and removing the film in a small arch shed: 3d to 5d after planting, build a small arch shed with a height of 80cm to 120cm and a width of 70cm to 100cm; when the seedlings are 30cm to 40cm tall, remove the film after hardening the seedlings for 2d to 3d on a cloudy or sunny day, and irrigate with shallow water of 3cm to 5cm in time; Thinning and finalizing the seedlings: 5-7 days after removing the film, thinning and finalizing the seedlings; Cold resistance treatment: 5-10 days after transplanting, spray the leaves of wild rice seedlings with 5000 times dilution of 0.003% propionyl brassinolide; Management during the rice seedling stage: After the peak tillering period, keep the field water level at 5 cm and leave the field in time; Harvesting: During the harvesting period of wild rice stem, keep the water level at 10cm to 15cm.

2. A method for efficiently planting wild rice stems using fallow fields in winter according to claim 1, characterized in that: In the field preparation step, before plowing, apply 1000kg-1500kg of commercial organic fertilizer or 100kg-150kg of decomposed rapeseed cake per mu, 50kg of ammonium bicarbonate and 25kg of calcium magnesium phosphate fertilizer per mu.

3. A method for efficiently planting wild rice stems using fallow fields in winter according to claim 1, characterized in that: In the seed selection step, the double-season water chestnut varieties 'Zhe Jiao 8' or 'Long Jiao 2' with vigorous growth in the early stage and excellent water chestnut quality are selected.

4. A method for efficiently planting wild rice stems using fallow fields in winter according to claim 1, characterized in that: In the nutrient solution germination step, 7 to 10 days after the rice stems are harvested, the thick tillering upright stems on the rice stems are collected. When collecting, the upright stems are cut off 2 cm below the soil surface, and the leaf sheaths wrapped outside the upright stems are peeled off. The upright stems are soaked in 5000 times of 0.02% dihydrochlorin iron solution and 800 times of 70% methyl thiophanate solution for 10 minutes. After being spread out for 12 hours, the upright stems are floated in a seedbed with a 10 cm water layer for germination. Every 667m 2 Evenly pour 20 kg of N-P2O5-K2O=15-15-15 water-soluble fertilizer into the water layer of the seedbed.

5. A method for efficiently planting wild rice stems using fallow fields in winter according to claim 1, characterized in that: In the planting step, the row spacing for planting the seedlings is 0.8m to 1m, and the plant spacing is 20cm, 30cm or 40cm; when planting, the seedlings are transplanted with upright stems, 2 to 3 seedlings per hole, and the upright stems are pressed 2cm to 3cm below the soil surface.

6. The method for efficiently planting wild rice stems using fallow fields in winter according to claim 1, characterized in that: In the steps of covering and removing the film in the small shed, 3d to 5d after transplanting, build a small shed with a height of 80cm to 120cm and a width of 70cm to 100cm, cover it with 3-filament drip-free longevity film, and make a hole with a diameter of 0.7cm to 1.0cm every 2m; when the seedlings are 30cm to 40cm tall, remove the film after 2d to 3d of hardening the seedlings on a cloudy or sunny day, and irrigate with shallow water 3cm to 5cm in time; 3d to 5d after removing the film, apply 25kg to 30kg of compound fertilizer per mu.

7. The method for efficiently planting wild rice stems using fallow fields in winter according to claim 1, characterized in that: During the thinning and transplanting steps, keep 10 to 15 healthy and vigorous water chestnut seedlings around each water chestnut stump; apply 25 to 30 kg of compound fertilizer per mu 10 to 15 days after transplanting; keep the water level at about 5 cm during thinning and transplanting; prevent diseases once after transplanting.

8. The method for efficiently planting wild rice stems using fallow fields in winter according to claim 1, characterized in that: In the cold resistance treatment step, 5 to 10 days after transplanting, spray 5000 times diluted 0.003% propionyl brassinolide on the leaves of the wild rice seedlings between 9:00 and 11:00 in the morning or between 3:30 and 5:30 in the afternoon on a sunny day.

9. The method for efficiently planting wild rice stems using fallow fields in winter according to claim 1, characterized in that: After the seedling stage, it also includes: Pest control: Spray 3000 times of 25% propiconazole emulsifiable concentrate at the seedling stage, and 800 times of 80% fully complexed mancozeb wettable powder one month before pregnancy; use yellow boards to kill aphids and plant hoppers; use sex attractants and insect-killing lamps to kill borers, and one week after the borer eggs hatch, spray 1000 times of 0.3% azadirachtin emulsifiable concentrate or 750 times of 8000IU / μL of Bacillus thuringiensis suspension.

10. The method for efficiently planting wild rice stems using fallow fields in winter according to claim 1, characterized in that: During the process of harvesting wild rice stem, after harvesting once or twice, apply 30kg to 35kg of potassium sulfate compound fertilizer per mu; and apply another 20kg to 30kg of compound fertilizer per mu after an interval of about 10 days.

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