Planting method for interplanting rice with double-cropping zizania aquatica

Abstract

The invention discloses a planting method for interplanting double-cropping zizania aquatica and rice. The planting method comprises the steps of rice transplanting, zizania aquatica planting, zizania aquatica field ditching, interplanting field management, rice harvesting and zizania aquatica harvesting. The method has the advantages that on the premise that the planting income of the zizania aquatica is guaranteed, one crop of single cropping rice is interplanted, the rice yield is increased, a new method which is easily accepted by farmers is provided for solving the non-grain problem of the zizania aquatica producing area, and the purpose of increasing grain and efficiency is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of vegetable planting, and in particular to a planting method for interplanting double-season water bamboo with rice. Background Art

[0002] In the Yangtze River Basin and the areas south of it in China, the planting of water bamboo is relatively common, and the economic income from planting water bamboo is several times that of rice. Therefore, in many water bamboo production areas, most of the paddy fields originally used for planting rice have been converted to plant water bamboo, resulting in a sharp reduction in the rice planting area. In recent years, the state has paid more and more attention to grain production, and many places have required rectification of non-grain farmland, requiring that basic farmland or grain production functional areas plant at least one season of food crops in a year. The rotation of water bamboo and rice is a method to increase the grain sown area. For example, the rotation of water bamboo and rice within a year, one crop of water bamboo is planted and harvested from February to early June, and one crop of rice is rotated and harvested from mid-June to October. This rotation method shortens the time of water bamboo in the field, resulting in only one crop of water bamboo being harvested in a year. There is also a two-year rotation of water bamboo and rice, with water bamboo planted in the first year and rice planted in the second year. The income from the rotated rice is significantly less than the reduced income of water bamboo, and the enthusiasm of farmers is relatively low. How to increase grain production on the premise of ensuring that farmers' planting income does not decline is a difficult problem faced by current water bamboo production areas. Summary of the Invention

[0003] The present invention aims to solve the problems existing in the above-mentioned prior art and provides a planting method for interplanting double-season water bamboo with rice, which can not only increase the yield of one crop of rice but also ensure the planting income of water bamboo.

[0004] The technical solution adopted by the present invention to solve its technical problems: This planting method for interplanting double-season water bamboo with rice includes the following steps:

[0005] This planting method for interplanting double-season water bamboo with rice includes the following steps:

[0006] The first step is rice transplanting. After the summer crop of double-season water bamboo is harvested at the end of May, the water bamboo field is plowed and harrowed flat, and rice is transplanted in early June. The rice variety is selected as a single-season rice variety with a growth period within 110 days. The row spacing of the rice is 30-35 cm, the plant spacing is 30-35 cm, and for every 3-4 rows of rice planted, a planting belt with a width of 120-125 cm for interplanting water bamboo is reserved beside.

[0007] The second step is water bamboo planting. Water bamboo is planted from early July to mid-July. Select medium-late maturing varieties of autumn water bamboo, and plant 2 rows of water bamboo in each reserved planting belt. The row spacing of the water bamboo is 70-75 cm, and the plant spacing is 40-45 cm.

[0008] The third step is to dig ditches in the water bamboo field. One month after the water bamboo is planted, ditches are dug between the rows of water bamboo. The width of the ditch is 30 cm, and the depth is 25 cm. One ditch is dug for every 4 rows of water bamboo. After the ditches are dug, water is stored in the ditches, keeping the field surface without water, and only irrigating the water above the field surface when fertilizing to facilitate the dissolution of fertilizers.

[0009] The fourth step is intercropping field management. Two weeks after rice planting, 30 grams of paclobutrazol per mu of rice leaves and 40 kilograms of potassium chloride per mu are applied.

[0010] The fifth step is rice harvesting. Before the end of September, small harvesting machines are used to harvest rice between the wild rice rows.

[0011] Step 6: Harvest water chestnuts. Autumn water chestnuts are harvested after mid-October.

[0012] Furthermore, in the fourth step, rice and wild rice are subjected to pest and disease control.

[0013] The double-season wild rice interplanting rice planting method of the present invention comprises the following steps: in the first step, after the double-season wild rice is harvested in May, rice transplanting begins, a wild rice planting belt is reserved when rice is transplanted, and in the second step, double-season wild rice and autumn wild rice are planted, autumn wild rice is planted in the reserved planting belt, and rice and autumn wild rice coexist after planting. In the first step, the rice row spacing is 30-35 cm, the plant spacing is 30-35 cm, and 3-4 rows of rice are planted each time. In the second step, 2 rows of wild rice are planted in each reserved planting belt, the wild rice row spacing is 70-75 cm, and the plant spacing is 40-45 cm. Through the combination of the first step and the second step, the principle is that the wild rice planting density is low, the space between rows is large, and the rice planting density is high, but the plants are short in the early stage, the second crop of wild rice and rice are interplanted, and the mutual shading effect is small, and the row spacing between the 2 rows of wild rice in the interplanting belt is kept 70-75 cm, which can ensure that the water chestnut plants have sufficient sunlight. When intercropping water chestnut and rice in autumn, the methods of the first and second steps are combined. The growth of water chestnut and rice will not be affected, ensuring the yield of both. According to the growth characteristics of the two crops, the field space is reasonably utilized to reduce the mutual interference between crops, so as to achieve the goal of increasing grain production on the basis of ensuring the income of water chestnut. The third step is to dig furrows in the water chestnut field. One month after the water chestnut is planted, furrows are dug between the rows of water chestnut. The furrow width is 30 cm and the furrow depth is 25 cm. One furrow is dug for every 4 rows of water chestnut. After digging furrows, water is stored in the furrows to keep the field surface dry. Only when fertilizing, water is irrigated above the field surface to facilitate fertilizer dissolution. After field ditching management, the field surface can maintain the same dryness as conventional rice, which is convenient for rice harvesting. When fertilizing, water is irrigated above the field surface according to the conventional height to facilitate fertilizer dissolution. The fourth step is intercropping field management. Two weeks after rice is planted, 30 grams of paclobutrazol is sprayed on the rice leaves per mu, and 40 kilograms of potassium chloride is applied per mu, which is beneficial to hard rice stalks and prevents water-proof rice from lodging. Rice and wild rice are subject to pest and disease control, and pest and disease control is consistent with conventional methods. The fifth step is rice harvesting. A small harvester is used to harvest rice between wild rice rows, which not only improves the efficiency of rice harvesting, but also does not damage wild rice, ensuring the harvest of autumn wild rice. The sixth step is to harvest wild rice. Autumn wild rice is harvested after mid-October. In this way, the harvest of autumn wild rice is completed, and the management and harvest of summer wild rice are continued according to conventional methods, achieving the effect of double-season wild rice intercropping with rice, and achieving the goal of increasing grain and increasing efficiency.

[0014] The principle of the invention is: the planting density of wild rice is low, the space between rows is large, and it is suitable for intercropping crops. The planting density of rice is high, but the plants are short in the early stage. After the intercropping of wild rice and rice, the mutual shading effect is small. The row spacing between the two rows of wild rice in the intercropping belt is kept at 70 to 75 cm, which can ensure that the wild rice plants are fully illuminated; after the field ditch management, the field surface can maintain the same dryness as conventional rice, which is convenient for rice harvesting. The double-season wild rice intercropping rice planting method reasonably utilizes the field space according to the growth characteristics of the two crops, reduces the mutual interference between crops, and achieves the goal of increasing grain production on the basis of ensuring the income of wild rice.

[0015] The beneficial effect of the present invention is that the planting method of double-season water chestnut intercropping with rice of the present invention intercrops a single-season rice on the premise of ensuring the income of water chestnut planting, thereby increasing the rice yield, providing a new method that is easy for farmers to accept for solving the non-grain problem in water chestnut producing areas, and achieving the goal of increasing grain production and increasing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The actual planting map reserved for the wild rice planting belt in the first embodiment of the present invention;

[0017] Figure 2 This is an actual planting diagram of the trenching of a rice field according to the first embodiment of the present invention;

[0018] Figure 3 This is an actual planting diagram of intercropping autumn rice with wild rice according to the first embodiment of the present invention. DETAILED DESCRIPTION

[0019] The present invention will be further described below:

[0020] The double-season wild rice intercropping method comprises the following steps:

[0021] The first step is rice transplanting. After the double-season wild rice is harvested at the end of May, the wild rice field is ploughed and harrowed. Rice is planted in early June. The rice variety is a single-season rice variety with a growth period of 110 days. The rice row spacing is 30 cm, the plant spacing is 30 cm, and 3 rows of rice are planted each time. A 120 cm wide planting belt is reserved next to it for interplanting wild rice.

[0022] The second step is to plant wild rice stems. From early to mid-July, wild rice stems should be planted. It is advisable to choose late-maturing varieties of autumn wild rice stems. Two rows of wild rice stems should be planted in each reserved planting belt, with a row spacing of 70 cm and a plant spacing of 40 cm.

[0023] The third step is to dig furrows in the wild rice field. One month after wild rice is planted, dig furrows between the rows of wild rice. The furrows are 30 cm wide and 25 cm deep. One furrow is dug for every 4 rows of wild rice. After digging the furrows, water is stored in the furrows to keep the field surface free of water. Only when fertilizing, water is irrigated above the field surface to facilitate the dissolution of fertilizer.

[0024] The fourth step is intercropping field management. Two weeks after rice planting, 30 grams of paclobutrazol per mu of rice leaves and 40 kilograms of potassium chloride per mu are applied.

[0025] The fifth step is rice harvesting. Before the end of September, small harvesting machines are used to harvest rice between the wild rice rows.

[0026] Step 6: Harvest water chestnuts. Autumn water chestnuts are harvested after mid-October.

[0027] Furthermore, in the fourth step, rice and wild rice are subjected to pest and disease control.

[0028] The double-season wild rice intercropping method comprises the following steps:

[0029] The first step is rice transplanting. After the double-season wild rice is harvested at the end of May, the wild rice field is ploughed and harrowed. Rice is planted in early June. The rice variety is a single-season rice variety with a growth period of 110 days. The rice row spacing is 32 cm, the plant spacing is 32 cm, and 3 rows of rice are planted each time. A 122 cm wide planting belt is reserved next to it for interplanting wild rice.

[0030] The second step is to plant wild rice stems. From early to mid-July, wild rice stems should be planted. It is advisable to choose late-maturing varieties of autumn wild rice stems. Two rows of wild rice stems should be planted in each reserved planting zone, with a row spacing of 72 cm and a plant spacing of 42 cm.

[0031] The third step is to dig furrows in the wild rice field. One month after wild rice is planted, dig furrows between the rows of wild rice. The furrows are 30 cm wide and 25 cm deep. One furrow is dug for every 4 rows of wild rice. After digging the furrows, water is stored in the furrows to keep the field surface free of water. Only when fertilizing, water is irrigated above the field surface to facilitate the dissolution of fertilizer.

[0032] The fourth step is intercropping field management. Two weeks after rice planting, 30 grams of paclobutrazol per mu of rice leaves and 40 kilograms of potassium chloride per mu are applied.

[0033] The fifth step is rice harvesting. Before the end of September, small harvesting machines are used to harvest rice between the wild rice rows.

[0034] Step 6: Harvest water chestnuts. Autumn water chestnuts are harvested after mid-October.

[0035] Furthermore, in the fourth step, rice and wild rice are subjected to pest and disease control.

[0036] The double-season wild rice intercropping method comprises the following steps:

[0037] The first step is rice transplanting. After the double-season wild rice is harvested at the end of May, the wild rice field is ploughed and harrowed. Rice is planted in early June. The rice variety is a single-season rice variety with a growth period of 110 days. The rice row spacing is 35 cm, the plant spacing is 35 cm, and 4 rows of rice are planted each time. A 125 cm wide planting belt is reserved next to it for interplanting wild rice.

[0038] The second step is to plant wild rice stems. From early to mid-July, wild rice stems should be planted. It is advisable to choose late-maturing varieties of autumn wild rice stems. Two rows of wild rice stems should be planted in each reserved planting zone, with a row spacing of 75 cm and a plant spacing of 40 to 45 cm.

[0039] The third step is to dig furrows in the wild rice field. One month after wild rice is planted, dig furrows between the rows of wild rice. The furrows are 30 cm wide and 25 cm deep. One furrow is dug for every 4 rows of wild rice. After digging the furrows, water is stored in the furrows to keep the field surface free of water. Only when fertilizing, water is irrigated above the field surface to facilitate the dissolution of fertilizer.

[0040] The fourth step is intercropping field management. Two weeks after rice planting, 30 grams of paclobutrazol per mu of leaves and 40 kilograms of potassium chloride per mu are applied.

[0041] The fifth step is rice harvesting. Before the end of September, small harvesting machines are used to harvest rice between the wild rice rows.

[0042] Step 6: Harvest water chestnuts. Autumn water chestnuts are harvested after mid-October.

[0043] Furthermore, in the fourth step, rice and wild rice are subjected to pest and disease control.

[0044] The double-season rice intercropping method of the present invention, embodiment 1, embodiment 2, and embodiment 3, was selected to compare the yields of rice produced by the rice field with the yield of the conventional double-season rice field and the yield of the conventional double-season rice field. The comparison results are as follows:

[0045]

[0046] As can be seen from the above table, the planting method of double-season Zizania intercropping with rice in the embodiment of the present invention is superior to rice produced from conventionally managed Zizania fields and conventional double-season Zizania and autumn Zizania in terms of yield and per-acre output value, and can be promoted.

[0047] The characteristics of the embodiments of the present invention are as follows: the planting method of double-season wild rice intercropping with rice of the present invention intercrops a single-season rice on the premise of ensuring the income of wild rice planting, thereby increasing the rice yield, providing a new method that is easy for farmers to accept for solving the non-grain problem in wild rice producing areas, and achieving the goal of increasing grain production and increasing efficiency.

[0048] Although the present invention has been described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A planting method for double-season wild rice intercropping with rice, characterized in that: The steps include: (1) Rice transplanting: After the double-season wild rice is harvested at the end of May, the wild rice field is plowed and raked flat. Rice is transplanted in early June. Rice varieties should be single-season rice varieties with a growth period of less than 110 days. The rice row spacing is 30 to 35 cm, the plant spacing is 30 to 35 cm, and 3 to 4 rows of rice are planted each time. A 120 to 125 cm wide planting strip is reserved next to it for interplanting wild rice stems. (2) Planting of wild rice stems: Plant wild rice stems from early to mid-July. Choose mid-late maturing varieties of wild rice stems. Plant two rows of wild rice stems in each reserved planting zone. The row spacing is 70 to 75 cm and the plant spacing is 40 to 45 cm. (3) Digging furrows in the wild rice field: One month after wild rice is planted, dig furrows between the rows of wild rice. The furrows are 30 cm wide and 25 cm deep. One furrow is dug for every four rows of wild rice. After digging the furrows, water is stored in the furrows to keep the field surface dry. Water is only irrigated above the field surface when fertilizing. (4) Intercropping field management: 2 weeks after rice planting, spray 30 g of paclobutrazol on the rice leaves and apply 40 catties of potassium chloride per mu; (5) Rice harvesting: Use small harvesting machines to harvest rice between the rice stems before the end of September; (6) Harvesting of wild rice stems: Autumn wild rice stems are harvested after mid-October.

2. The planting method of double-season wild rice intercropping with rice according to claim 1, characterized in that: In the step (4), rice and wild rice are subjected to pest and disease control.

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