Greenhouse Gas Emissions from Cotton Field under Different Irrigation Methods and Fertilization Regimes in Arid Northwestern China

Table 1

The applications of irrigation and topdressing during the cotton growth period.

Irrigation date	Drip irrigation treatments			Furrow irrigation treatments
	Volume (m^3·hm^−2)	Urea (kg·hm^−2)	Potassium dihydrogen phosphate (kg·hm^−2)	Volume (m^3·hm^−2)	Urea (kg·hm^−2)	Potassium dihydrogen phosphate (kg·hm^−2)
6.10-6.11	225	30	15	1050	150
6.24-6.25	300	30	15	1500	300	60
7.3	300	30
7.9-7.10	375	60		1500	105	30
7.17	450	75
7.23-7.24	450	75		1200
8.1	450	60
8.5-8.6	450	60		750
8.13	375	45	15
8.21	375	45	15
8.27	300	30	15
9.3	225	15	15
9.10	225