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In the absence of accurate and rapid N testing methods, many growers currently apply N fertilizer in excess rather than risk of yield reduction through N deficiency. Crop growth and crop need for supplemental N can be strongly influenced by crop-growing conditions, crop and soil management, and climate, which can vary greatly among fields, villages, seasons and years. The current recommendation of fixed-time split N application at specified growth stages is not adequate to synchronize N supply with actual crop N demand because of poorly designed N splitting and variations in crop N demand and indigenous soil N supply. One of the emerging technologies is the determination of the plant for N status in combination with soil testing. The premise is that the plant may be a better indicator of actual N status than inference from soil test. Therefore, the predictive recommendations need to be adapted to the crop N status. Leaf colour chart (LCC) is the promising tool developed by IRRI in recent years for need-based N management in rice crop. The present study deals with validation of LCC for real time N fertilization in wheat.
| Autorius: | Kinjal D. Gajera, R. K. Mathukia, P. R. Mathukia, |
| Leidėjas: | Scholars' Press |
| Išleidimo metai: | 2013 |
| Knygos puslapių skaičius: | 128 |
| ISBN-10: | 3639705017 |
| ISBN-13: | 9783639705010 |
| Formatas: | 220 x 150 x 8 mm. Knyga minkštu viršeliu |
| Kalba: | Anglų |
Parašykite atsiliepimą apie „Real Time Nitrogen Fertilization: Nitrogen Scheduling in Wheat (Triticum aestivum L.) Using Leaf Colour Chart (LCC)“
