1 Terminology and Definitions
This document does not contain any terms or definitions that need to be specified.
2 Variety Selection
Choose varieties based on planting objectives, market demand, and local climate conditions. Opt for varieties with good adaptability, strong resistance, and high yield.
3 Site Selection
Select a site that is easily accessible by transportation, has a plow layer ≥ 30cm, and facilitates drainage and irrigation. The previous crop should not be of the gourd family, and the soil must meet GB15618 regulations. Irrigation water must comply with GB5084 standards.
4 Seedling Cultivation
Seedling cultivation is carried out according to T/YNRZ002-2024.
5 Land Preparation
5.1 Deep Plowing
Plow the land more than 30cm deep and expose it for about 30 days.
5.2 Ridge Making
After plowing and exposing, prepare the ridges. The ridge width should be between 1.2m to 1.5m, height 20cm to 25cm, with a ditch width of 20cm to 30cm.
5.3 Digging Planting Pits
The distance between pits is 0.6m x (1m to 1.3m), and the pit depth should be ≥ 25cm.
5.4 Base Fertilization
Apply 50kg of common superphosphate per mu, mix in 1000kg to 1500kg of organic fertilizer into the planting pits, then cover with soil (3cm to 5cm).
6 Planting
6.1 Planting Time
Plant when the ground temperature stabilizes above 15℃.
6.2 Planting Method
Transplant seedlings into the pit ensuring roots do not directly touch the fertilizers, and water sufficiently after planting.
7 Field Management
7.1 Ridge Hoeing and Soil Mounding
First ridge hoeing and soil mounding should be done around 10 days after transplanting; second round of ridge hoeing and soil mounding within 20 to 25 days.
7.2 Trellising
Trellis construction is carried out after the second ridge hoeing, with a height of approximately 2m.
7.3 Vine Guidance
Guide vines along the trellis, fixing them about 10cm below the plant apex; fix once every 4 to 5 nodes. When the plants exceed 1.5m in height, remove lateral shoots from below 80cm and leave one side shoot on each plant next to a missing plant.
7.4 Plant Adjustment
7.4.1 Retain main vines and 2 to 3 basal branches that grow from ground level stems; prune all nutritional lateral branches above the ground up to node 15, leaving only 1 to 2 leaves beyond female flowers on bearing side shoots, removing dense old branches and weak lateral shoots.
7.4.2 Remove male flowers below 50cm of the main vine. When six to seven fruits are set on the main vine, top it after five to six leaves above the uppermost fruit; timely thinning should be done, removing old and diseased leaves.
7.5 Water and Fertilizer Management
7.5.1 Maintain soil relative humidity between 65% and 70% during growth periods.
7.5.2 After planting combine with ridge hoeing to fertilize: apply 5kg to 10kg urea per mu, when female flowers appear apply 8kg to 10kg potassium dihydrogen phosphate per mu; after fruit setting till harvest, apply ammonium nitrate at a rate of 4kg per mu every 7 days. For open field cultivation add compound fertilizer once during the middle and late stages.
7.5.3 Water management should follow scientific irrigation principles such as drip irrigation or sprinkler irrigation based on crop needs.
8 Harvest
Harvest when fruit surface patterns are full, the skin is glossy, and the apex color starts to fade. Cut fruits with scissors 3cm to 5cm from the vine.
9 Production Management Records
Each production plot should have an independent and complete management record documenting seed sources, pesticide use, fertilizer application details, retaining records of all stages during production for safekeeping and future reference.
T/YNRZ 003-2024 history
2025T/YNRZ 003-2025 R2E2 Mango Excellent and Abundant Cultivation Technical Standard
2024T/YNRZ 003-2024 Technical specifications for high-yield planting of bitter gourd
2023T/YNRZ 003-2023 Technical regulations for the planting of Aralia chinensis Linn.
2022T/YNRZ 003-2022 Technical regulations for high-yield cultivation of pumpkin in open field Yunnan