Avoid drying out of the microbes during application. If applying TwinN to the foliage by backpack, boom spray or aerial application apply it under conditions that will enable the foliage to remain moist for at least three hours after spraying. This includes late afternoon, early morning onto dew, in light rain or under humid conditions. If applying via the soil by irrigation, overhead spray or drip systems then ensure the microbes are able to enter a moist zone. Once established in the plant tissues or root zone the microbes are very tolerant of dry conditions.
Avoid mixing the microbes with toxic chemicals. Use non-chlorinated or de-chlorinated water (see Application Instructions) to apply TwinN and do not mix it with herbicides, insecticides, fungicides or other products unless they are listed as compatible with TwinN.
If you want to co-apply TwinN with other nutrients contact your distributor to see if they are compatible with TwinN. For a summary of products that can or cannot be co-applied with TwinN see Compatibility Guidelines or ask your distributor.
Apply TwinN when you would usually apply nitrogen. A recommended starting point is to apply 50% of the normal rate of N fertilizer, plus TwinN, applied once or twice. Apply the N at the same stages of the crop cycle as usual. Many producers also test, in addition, a greater reduction down to 25% of normal N. Depending on soil fertility and crop needs most systems will produce long-term sustainable high yields at between 25 – 50% of normal N inputs. Start at 50% and work downwards. It is important to continue to apply other nutrients such as phosphorous, potassium, and micronutrients. TwinN will improve the bioavailability of phosphorous and various micronutrients but you should still apply sufficient non-nitrogen nutrients that the crop can respond effectively to nitrogen from TwinN.
| Crop | Application Timing |
|---|---|
| Apple | Just after flowering; Half way through fruit development; After harvest or prior to bud break to set up next crop |
| Bean | 4-8 leaf stage; Early flowering |
| Berry | 4-6 leaf stage ; 2 months later; 2 months later |
| Carrot | Post emergence; 6 weeks later |
| Cotton | 4-6 leaf stage; before flowering, during boll formation |
| Cucurbit | 4-6 leaf stage; 2 months later |
| Cruciferea | 4-6 leaf stage; 2 month later |
| Cherry | Just after flowering; Half way through fruit development; After harvest or prior to bud break to set up next crop |
| Grapes | Just after flowering; Half way through fruit development; After harvest or prior to bud break to set up next crop |
| Ground nut | 4-6 leaf stage; During early flowering |
| Kiwi fruit | Just after flowering; Half way through fruit development; After harvest or prior to bud break to set up next crop |
| Lettuce | 4-6 leaf stage; 6 weeks later |
| Maize | 5 -15cm shoot height; Immediately before flowering |
| Nectarine | Just after flowering; Half way through fruit development; After harvest or prior to bud break to set up next crop |
| Onion | 4-6 leaf stage; 6 weeks later |
| Ornamental | As often as needed |
| Olive | Just after flowering; Half way through fruit development; After harvest or prior to early new season growth to set up next crop |
| Peach | Just after flowering; Half way through fruit development; After harvest or prior to bud break to set up next crop |
| Pear | Just after flowering; Half way through fruit development; After harvest or prior to bud break to set up next crop |
| Pepper | 4-6 leaf stage; 2 months later; |
| Potato | On emergence; At tuber initiation |
| Pumpkin | 4-6 leaf stage; 2 months later |
| Seedling | Full emergence |
| Strawberry | 4-6 leaf stage; 2 months later |
| Sugar cane | 15-30cm high; Prior to crop becoming too tall to boom spray |
| Sunflower | 15-20cm high; Before flowering |
| Tomato | 4-6 leaf stage; 2 months later |
| Tobacco | 4-6 leaf stage; 2 months later |
| Watermelon | 4-6 leaf stage; 2 months later |
| Wheat | 4-5 leaf stage; Late tillering or before flowering in irrigated areas or for heavy crops |
Notes
- Application timing is based on the recommended standard dose rate for TwinN as supplied in the product package.
- The numbers of applications may be increased to suit specific cropping systems and soil/climatic conditions.
- For fruit trees and other crops that have an establishment growth stage apply at planting and twice during each growing season until production commences.
- TwinN can be applied in combination with reduced rates of nitrogen fertilizer. A common practice is to apply nitrogen at 25 – 50% of normal rates at planting then TwinN after emergence and again later in the crop’s development.
- Normal applications of non-nitrogenous fertilizers should be continued.
