CN112425469A - Winter wheat and summer rice rotation method suitable for paddy-field areas - Google Patents
Winter wheat and summer rice rotation method suitable for paddy-field areas Download PDFInfo
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- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 140
- 235000009566 rice Nutrition 0.000 title claims abstract description 140
- 241000209140 Triticum Species 0.000 title claims abstract description 80
- 235000021307 Triticum Nutrition 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title claims abstract description 14
- 240000007594 Oryza sativa Species 0.000 title 1
- 241000209094 Oryza Species 0.000 claims abstract description 139
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 47
- 238000003306 harvesting Methods 0.000 claims abstract description 41
- 238000009331 sowing Methods 0.000 claims abstract description 40
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 45
- 239000004202 carbamide Substances 0.000 claims description 45
- 239000002689 soil Substances 0.000 claims description 36
- 238000003973 irrigation Methods 0.000 claims description 25
- 230000002262 irrigation Effects 0.000 claims description 25
- 238000002360 preparation method Methods 0.000 claims description 21
- 239000005696 Diammonium phosphate Substances 0.000 claims description 14
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims description 14
- 229910000388 diammonium phosphate Inorganic materials 0.000 claims description 14
- 235000019838 diammonium phosphate Nutrition 0.000 claims description 14
- 239000003337 fertilizer Substances 0.000 claims description 14
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 claims description 14
- 229910052939 potassium sulfate Inorganic materials 0.000 claims description 14
- 235000011151 potassium sulphates Nutrition 0.000 claims description 14
- 241000371652 Curvularia clavata Species 0.000 claims description 7
- 230000000630 rising effect Effects 0.000 claims description 7
- 238000009333 weeding Methods 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 9
- 238000003967 crop rotation Methods 0.000 abstract 1
- 238000009736 wetting Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000009350 relay intercropping Methods 0.000 description 1
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- 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
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
- A01B79/02—Methods for working soil combined with other agricultural processing, e.g. fertilising, planting
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C21/00—Methods of fertilising, sowing or planting
- A01C21/005—Following a specific plan, e.g. pattern
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- 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
- A01G22/22—Rice
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- 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
- A01G25/00—Watering gardens, fields, sports grounds or the like
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Abstract
The invention relates to a winter wheat and summer rice rotation method suitable for a paddy field area, which can reduce the growth period of rice seedlings in the field by 40-50 days through a rice seedling raising and transplanting technology, can transplant middle-maturing high-quality rice bred in advance after winter wheat is harvested, provides a longer growth period for re-sowing rice, solves the problem that the current re-sowing rice is limited by temperature accumulating conditions after wheat harvesting, realizes rotation of winter wheat and high-quality middle-maturing rice, greatly improves the yield and quality of the rice, and greatly improves the income of rice farmers. Meanwhile, the contradiction of agricultural water shortage in local spring can be effectively coordinated. The crop rotation of winter wheat and high-quality medium-maturing rice is realized, so that the rice planting yield and benefit are greatly improved.
Description
Technical Field
The invention relates to a winter wheat and summer rice rotation method suitable for a paddy field area.
Background
The history of rice planting in the paddy field is long, the current sowing area reaches 8.17 ten thousand mu, the average yield per unit is 512 kilograms, and the average yield is far lower than that in the Aksu area with similar environmental conditions (the average yield per unit is more than 700 kilograms). Therefore, the rice yield increasing potential in the Hetian area is huge. The main factor hindering the improvement of rice yield in the Hetian area lies in the lag of rice management technology. The cultivated land per capita is less, the input level is low, and most rice farmers still adopt a broadcast planting mode. Uneven space-time distribution of water resources is another factor that restricts the high yield of paddy field rice. The key time for sowing rice in april to may-May every year is the season of water shortage in local agriculture, the water demand for rice planting is large, and rice farmers can only select delayed sowing or change other crops. By utilizing the characteristic that winter wheat needs low water in spring, after the winter wheat is harvested in june and early winter, river water from snow melting in Kunlun mountain is abundant, and a method for sowing and planting a rice variety with short growth period (the growth period is 100-110 days) after harvesting is a common method, and 21.7% of rice in Maoyu county in the field area is wheat stubble re-sowing rice. Due to the quality deviation of the rice varieties in the short growth period and the limitation of low effective accumulated temperature after wheat harvest superposition, the yield of the rice is low, the quality is poor and the commodity is low. In 2020 areas of Hetian, the average yield per unit of the rice sowed in wheat stubble is only about 320 kg (Table 1).
Xinjiang Hotan is one of deep poverty-stricken areas of three regions and three states in China, the poverty removal task is very difficult, and a high-yield and high-efficiency planting mode is urgently needed in production to improve the rice planting benefit. The rice seedling raising and transplanting technology is a mature high-yield high-efficiency rice cultivation technology, is a key technology for realizing large-area high yield, stable yield and high quality of rice, can reduce the growth period of rice seedlings in a field to 40-50 days, provides a longer growth period for re-sowing rice, can solve the problem of temperature accumulation condition limitation after wheat harvest of the current re-sowing rice, selects medium-maturing rice varieties with high yield and good quality and with the growth period of 150 plus 160 days, can realize great promotion of the yield and quality of the rice, and greatly improves the income of rice farmers. Meanwhile, the contradiction of agricultural water shortage in local spring can be effectively coordinated.
Disclosure of Invention
The invention aims to provide a winter wheat and summer rice rotation method suitable for a paddy field area, which can reduce the growth period of rice seedlings in the field by 40-50 days through a rice seedling raising and transplanting technology, can transplant middle-maturing high-quality rice bred in advance after the winter wheat is harvested, provides a longer growth period for re-sowing the rice, can solve the problem that the current re-sowing rice is limited by temperature accumulation conditions after wheat harvest, fully utilizes photo-thermal resources in the paddy field area, realizes rotation of the winter wheat and the high-quality middle-maturing rice, greatly improves the yield and the quality of the rice, and greatly improves the income of rice farmers. Meanwhile, the contradiction of agricultural water shortage in local spring can be effectively coordinated.
The invention relates to a winter wheat and summer rice rotation method suitable for a Hetian area, which comprises the following steps:
a. selecting rice varieties: selecting middle-aged rice varieties which have high yield and good quality and are suitable for the local environment and have the growth period of 150-;
b. rice seedling raising: raising seedlings at the beginning of 5 months;
c. land preparation: preparing soil in time after harvesting winter wheat in the first ten days of 6 months, applying base fertilizer with 8kg of diammonium phosphate, 5kg of potassium sulfate and 10kg of urea per mu before preparing soil, ploughing and preparing soil;
d. transplanting rice seedlings: inserting the rice seedlings in the 3-leaf 1-heart stage into the prepared land, wherein the row spacing of the rice seedlings is 30cm multiplied by 12cm, 5-7 basic seedlings are planted in each hole, and immediately irrigating 3-5cm of seedling protection water after the rice seedlings are planted;
e. and (3) rice growth period management: carrying out closed weeding 15d after rice transplanting, wherein the irrigation adopts an intermittent wet irrigation mode, 3-5cm of water is irrigated each time, 2-3d of water falls off before the next irrigation, 1-2kg of urea is applied to each mu of water at each time in a tillering stage, 2-3kg of urea is applied to each mu of water at each time in a jointing-pulling and booting stage, and 1-2kg of urea is applied to each mu of water at each time in a grouting stage;
f. harvesting: harvesting in the last 10 th month in due date according to the characteristics of the rice varieties;
g. land preparation: preparing soil in time after harvesting rice, applying base fertilizer, 8kg of diammonium phosphate, 5kg of potassium sulfate and 10kg of urea per mu before preparing soil, ploughing and preparing soil;
h. selecting winter wheat varieties: selecting new winter No. 60 and other early maturing high yield varieties suitable for local use;
I. sowing winter wheat: after land preparation is finished, sowing winter wheat in time, wherein the sowing amount per mu is 10-12kg, the row spacing is 15-20cm, and the sowing depth is 4-5 cm;
J. and (3) winter wheat growth period management: applying 5-8kg, 15-18kg and 20-25kg of urea respectively in the green turning period, the rising period and the jointing period; is applied in several times in combination with irrigation.
K. Harvesting winter wheat: in the first 6 th month, the winter wheat is harvested in time after it is ripe.
Compared with the prior art, the winter wheat and summer rice rotation method suitable for the Hetian area has the prominent substantive characteristics and remarkable progress that:
1. the method can fully utilize and adapt to the characteristics of the existing water resources and heat resources in the Hetian area, realizes the planting of the late-medium-maturing high-quality rice of winter wheat, greatly improves the yield and the quality of the rice, and has economic benefit far greater than that of the traditional Hetian rice planting mode (Table 1)
TABLE 1 benefit table for 2020 winter wheat relay intercropping rice in Hetian area
2. The method is based on the conventional winter wheat and rice planting technology mastered by local farmers, and the rice farmers in the related technology can easily understand and master the method. The technical content of the rice seedling raising link is relatively high, and the method can be operated in an enterprise manner. In general, the technical mode is easy to popularize in the Hetian area.
Drawings
FIG. 1 is a field diagram of rice seedling raising according to the present invention;
FIG. 2 is a diagram showing the growth of rice seedlings after transplanting and seedling slowing after harvesting winter wheat according to the present invention;
FIG. 3 is a diagram showing the growth of rice transplanted by the winter wheat after rotation.
Detailed Description
In 2020, a research team of Xinjiang ecological and geographical research institute of Chinese academy of sciences relies on the scientific and technological poverty-relieving project of Chinese academy of sciences, a rice planting test demonstration is developed in Sharpy county of Maoyu, a rice seedling cultivation core demonstration base 10 mu land is established in Yiyulaokun village in Sharpy county of Sharpy, more than 16000 seedling trays are cultivated, rice varieties are New 11 and 36, seedlings are freely distributed to 213 demonstration households in the county, a rice technical field demonstration is carried out after wheat is replanted, and a total demonstration of 570 mu land is obtained.
Example 1
a. Selecting rice varieties: selecting new medium-maturing rice No. 11 of the rice variety with high yield, good quality and suitable for the local environment in the growth period of 150-;
b. rice seedling raising: raising seedlings at the beginning of 5 months;
c. land preparation: preparing soil in time after harvesting winter wheat in the first ten days of 6 months, applying base fertilizer with 8kg of diammonium phosphate, 5kg of potassium sulfate and 10kg of urea per mu before preparing soil, ploughing and preparing soil;
d. transplanting rice seedlings: inserting new No. 11 rice seedlings in the 3-leaf 1-heart stage into the prepared land, transplanting 5 basic seedlings in each hole with the hole spacing of 30cm × 12cm, and immediately irrigating 3-5cm of seedling protecting water;
e. and (3) rice growth period management: carrying out closed weeding 15 days after transplanting new rice No. 11 rice, wherein the irrigation adopts an intermittent wetting irrigation mode, 3cm of water is irrigated each time, 2 days of drying before irrigation next time, 1kg of urea is applied to each mu of water at each time in a tillering stage, 2kg of urea is applied to each mu of water at each time in a jointing-pulling and booting stage, and 1kg of urea is applied to each mu of water at each time in a grouting stage;
f. harvesting: harvesting in the last 10 th month in due date according to the characteristics of the rice varieties;
g. land preparation: preparing land in time after harvesting the No. 11 new rice, applying base fertilizer with 8kg of diammonium phosphate, 5kg of potassium sulfate and 10kg of urea per mu before preparing land, ploughing and preparing land;
h. selecting winter wheat varieties: selecting new winter No. 60 and other early maturing high yield varieties suitable for local use;
I. sowing winter wheat: after land preparation is finished, sowing winter wheat in time, wherein the sowing amount per mu is 10kg, the row spacing is 15cm, and the sowing depth is 4 cm;
J. and (3) winter wheat growth period management: 5kg, 15kg and 20kg of urea are applied respectively in the green turning period, the rising period and the jointing period, and are applied in combination with water filling for several times;
K. harvesting winter wheat: in the first 6 th month, the winter wheat is harvested in time after it is ripe.
Example 2
a. Selecting rice varieties: selecting new medium-maturing rice No. 36 which has high yield and good quality and is suitable for the local environment and has the growth period of 150-;
b. rice seedling raising: raising seedlings at the beginning of 5 months;
c. land preparation: preparing soil in time after harvesting winter wheat in the first ten days of 6 months, applying base fertilizer with 8kg of diammonium phosphate, 5kg of potassium sulfate and 10kg of urea per mu before preparing soil, ploughing and preparing soil;
d. transplanting rice seedlings: inserting new No. 36 rice seedlings in the 3-leaf 1-heart stage into the prepared land, wherein the planting row spacing is 30cm multiplied by 12cm, 6 basic seedlings are planted in each hole, and immediately irrigating 4cm of seedling protection water after planting;
e. and (3) rice growth period management: carrying out closed weeding 15d after rice transplanting, wherein the irrigation adopts an intermittent wet irrigation mode, 4cm is irrigated each time, 3d falls before irrigation next time, 2kg of urea is applied to each mu of water at each time of the tillering stage, 3kg of urea is applied to each mu of water at each time of the jointing and booting stage, and 2kg of urea is applied to each mu of water at each time of the grouting stage;
f. harvesting: harvesting in the last 10 th month in due date according to the characteristics of the rice varieties;
g. land preparation: preparing soil in time after harvesting rice, applying base fertilizer, 8kg of diammonium phosphate, 5kg of potassium sulfate and 10kg of urea per mu before preparing soil, ploughing and preparing soil;
h. selecting winter wheat varieties: selecting new winter No. 60 and other early maturing high yield varieties suitable for local use;
I. sowing winter wheat: after land preparation is finished, sowing winter wheat in time, wherein the sowing amount per mu is 11kg, the row spacing is 17cm, and the sowing depth is 5 cm;
J. and (3) winter wheat growth period management: 6kg, 13kg and 22kg of urea are applied respectively in the green turning period, the rising period and the jointing period, and are applied in combination with water filling for several times;
K. harvesting winter wheat: in the first 6 th month, the winter wheat is harvested in time after it is ripe.
Example 3
a. Selecting rice varieties: selecting a medium-maturing rice variety No. 49 new rice which is high in yield, good in quality and suitable for the local environment and has the growth period of 150-;
b. rice seedling raising: raising seedlings at the beginning of 5 months;
c. land preparation: preparing soil in time after harvesting winter wheat in the first ten days of 6 months, applying base fertilizer with 8kg of diammonium phosphate, 5kg of potassium sulfate and 10kg of urea per mu before preparing soil, ploughing and preparing soil;
d. transplanting rice seedlings: inserting the 49-th rice seedling of the new rice in the 3-leaf 1-heart stage into the prepared land, wherein the transplanting row spacing is 30cm multiplied by 12cm, 7 basic seedlings are planted in each hole, and immediately irrigating 5cm of seedling protection water after transplanting;
e. and (3) rice growth period management: carrying out closed weeding 15 days after transplanting of the 49-th rice of the new rice, wherein the irrigation adopts an intermittent wetting irrigation mode, 5cm of water is irrigated each time, the water falls for 3 days before the next irrigation, 2kg of urea is applied to each mu of water at each time in a tillering period, 3kg of urea is applied to each mu of water at each time in a jointing-pulling and booting period, and 2kg of urea is applied to each mu of water at each time in a grouting period;
f. harvesting: harvesting in the last 10 th month in due date according to the characteristics of the rice varieties;
g. land preparation: preparing land in time after harvesting No. 49 new rice, applying base fertilizer with 8kg of diammonium phosphate, 5kg of potassium sulfate and 10kg of urea per mu before preparing land, ploughing and preparing land;
h. selecting winter wheat varieties: selecting new winter No. 60 and other early maturing high yield varieties suitable for local use;
I. sowing winter wheat: after land preparation is finished, winter wheat is timely sown, the sowing amount per mu is 12kg, the row spacing is 20cm, and the sowing depth is 5 cm;
J. and (3) winter wheat growth period management: applying 8kg, 18kg and 25kg of urea respectively in the green turning period, the rising period and the jointing period, and applying the urea in combination with water for several times;
K. harvesting winter wheat: in the first 6 th month, the winter wheat is harvested in time after it is ripe.
Example 4
a. Selecting rice varieties: selecting a middle-aged rice variety No. 2 with high yield, good quality and suitable for the local environment in the growing period of 150-;
b. rice seedling raising: raising seedlings at the beginning of 5 months;
c. land preparation: preparing soil in time after harvesting winter wheat in the first ten days of 6 months, applying base fertilizer with 8kg of diammonium phosphate, 5kg of potassium sulfate and 10kg of urea per mu before preparing soil, ploughing and preparing soil;
d. transplanting rice seedlings: inserting the new stem No. 2 rice seedlings in the 3-leaf and 1-heart stage into the prepared land, wherein the planting row spacing is 30cm multiplied by 12cm, 5 basic seedlings are planted in each hole, and immediately irrigating 5cm of seedling protection water after planting;
e. and (3) rice growth period management: carrying out closed weeding 15 days after transplanting new-stem No. 2 rice, wherein the irrigation adopts an intermittent wetting irrigation mode, 3cm is irrigated each time, 3 days are irrigated before irrigation next time, 2kg of urea is applied to each mu of field at each irrigation time in a tillering stage, 2kg of urea is applied to each mu of field at each irrigation time in a jointing-pulling and booting stage, and 1kg of urea is applied to each mu of field at each irrigation time in a grouting stage;
f. harvesting: harvesting in the last 10 th month in due date according to the characteristics of the rice varieties;
g. land preparation: preparing soil in time after harvesting the new-stalk No. 2 rice, applying a base fertilizer with 8kg of diammonium phosphate, 5kg of potassium sulfate and 10kg of urea per mu before preparing the soil, and turning over and preparing the soil;
h. selecting winter wheat varieties: selecting new winter No. 60 and other early maturing high yield varieties suitable for local use;
I. sowing winter wheat: after land preparation is finished, sowing winter wheat in time, wherein the sowing amount per mu is 10kg, the row spacing is 20cm, and the sowing depth is 5 cm;
J. and (3) winter wheat growth period management: 5kg, 13kg and 25kg of urea are applied respectively in the green turning period, the rising period and the jointing period, and are applied in combination with water filling for several times;
K. harvesting winter wheat: in the first 6 th month, the winter wheat is harvested in time after it is ripe.
Example 5
a. Selecting rice varieties: selecting a middle-aged rice variety No. 4 with high yield, good quality and suitable for the local environment in the growing period of 150-;
b. rice seedling raising: raising seedlings at the beginning of 5 months;
c. land preparation: preparing soil in time after harvesting winter wheat in the first ten days of 6 months, applying base fertilizer with 8kg of diammonium phosphate, 5kg of potassium sulfate and 10kg of urea per mu before preparing soil, ploughing and preparing soil;
d. transplanting rice seedlings: inserting new stem No. 4 rice seedlings in 3-leaf and 1-heart stage into the prepared land, transplanting with the row spacing of 30cm × 12cm and 7 basic seedlings per hole, and immediately irrigating 5cm of seedling protecting water after transplanting;
e. and (3) rice growth period management: carrying out closed weeding 15 days after transplanting new-stem No. 4 rice, wherein the irrigation adopts an intermittent wetting irrigation mode, 5cm of water is irrigated each time, 2 days are drained before irrigation next time, 2kg of urea is applied to each mu of water at each time in a tillering stage, 3kg of urea is applied to each mu of water at each time in a jointing-pulling and booting stage, and 2kg of urea is applied to each mu of water at each time in a grouting stage;
f. harvesting: harvesting in the last 10 th month in due date according to the characteristics of the rice varieties;
g. land preparation: preparing soil in time after harvesting the new-stalk No. 4 rice, applying a base fertilizer with 8kg of diammonium phosphate, 5kg of potassium sulfate and 10kg of urea per mu before preparing the soil, and turning over and preparing the soil;
h. selecting winter wheat varieties: selecting new winter No. 60 and other early maturing high yield varieties suitable for local use;
I. sowing winter wheat: after land preparation is finished, winter wheat is timely sown, the sowing amount per mu is 12kg, the row spacing is 15cm, and the sowing depth is 5 cm;
J. and (3) winter wheat growth period management: applying 8kg, 15kg and 25kg of urea respectively in the green turning period, the rising period and the jointing period, and applying the urea in combination with water for several times;
K. harvesting winter wheat: in the first 6 th month, the winter wheat is harvested in time after it is ripe.
Demonstration results:
the average yield per unit of winter wheat of a winter wheat rotation transplanting rice demosaint is 260 kilograms, the average yield per unit of middle-maturing rice of rotation is 614 kilograms, and the net benefit per mu after cost deduction is about 2000 yuan; the adopted varieties of the conventional broadcast sowing rice are new rice No. 11 and new rice No. 36, the population density caused by the broadcast sowing mode is too large, the increase of the rice yield is limited, the average yield per mu is 512 kilograms, and the net benefit after deducting the cost is only about 1000 yuan; the average yield of the rice sowed by the local rice grower after the winter wheat is planted in turn is only 320 kg, and the net benefit after the cost is deducted is only about 1100 yuan. Therefore, compared with the local conventional single-season broadcast sowing rice, the winter wheat rotation transplanting rice technology increases the income per mu by about 1000 yuan, increases the income per household by 2676 yuan and increases the income by 57 ten thousand yuan in an accumulated way. The popularization and demonstration achieve good effects.
Claims (1)
1. A winter wheat and summer rice rotation method suitable for a paddy field area is characterized by comprising the following steps:
a. selecting rice varieties: selecting middle-aged rice varieties which have high yield and good quality and are suitable for the local environment and have the growth period of 150-;
b. rice seedling raising: raising seedlings at the beginning of 5 months;
c. land preparation: preparing soil in time after harvesting winter wheat in the first ten days of 6 months, applying base fertilizer with 8kg of diammonium phosphate, 5kg of potassium sulfate and 10kg of urea per mu before preparing soil, ploughing and preparing soil;
d. transplanting rice seedlings: inserting the rice seedlings in the 3-leaf 1-heart stage into the prepared land, wherein the row spacing of the rice seedlings is 30cm multiplied by 12cm, 5-7 basic seedlings are planted in each hole, and immediately irrigating 3-5cm of seedling protection water after the rice seedlings are planted;
e. and (3) rice growth period management: carrying out closed weeding 15d after rice transplanting, wherein the irrigation adopts an intermittent wet irrigation mode, 3-5cm of water is irrigated each time, 2-3d of drying before irrigation next time, 1-2kg of urea is applied to each mu of water at each time in a tillering stage, 2-3kg of urea is applied to each mu of water at each time in a jointing-pulling and booting stage, and 1-2kg of urea is applied to each mu of water at each time in a grouting stage;
f. harvesting: harvesting in the last 10 th month in due date according to the characteristics of the rice varieties;
g. land preparation: preparing soil in time after harvesting rice, applying base fertilizer, 8kg of diammonium phosphate, 5kg of potassium sulfate and 10kg of urea per mu before preparing soil, ploughing and preparing soil;
h. selecting winter wheat varieties: selecting new winter No. 60 and other early maturing high yield varieties suitable for local use;
I. sowing winter wheat: after land preparation is finished, sowing winter wheat in time, wherein the sowing amount per mu is 10-12kg, the row spacing is 15-20cm, and the sowing depth is 4-5 cm;
J. and (3) winter wheat growth period management: applying 5-8kg, 15-18kg and 20-25kg of urea respectively in the green turning period, the rising period and the jointing period, and applying the urea in combination with water for several times;
K. harvesting winter wheat: in the first 6 th month, the winter wheat is harvested in time after it is ripe.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105453879A (en) * | 2015-12-29 | 2016-04-06 | 新疆农业大学 | Winter wheat interplanted summer soybean high-yield cultivation method |
| CN111955298A (en) * | 2020-08-20 | 2020-11-20 | 青岛九天智慧农业集团有限公司 | Crop rotation planting method for rice and winter wheat in saline-alkali soil |
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