Effect of Tillage, Irrigation, and Nutrient Levels on Growth and Yield of Sweet Potato in Rice Fallow

Table 2

Effect of tillage, irrigation, and nutrient levels on growth of sweet potato in rice fallow.

Treatment	Vine length (cm)		LAI
	2007-2008	2008-2009	2007-2008		2008-2009
			90 DAP	Harvest	90 DAP	Harvest
Tillage
Minimum tillage	102.3	100.6	2.51	2.38	2.42	2.33
Conventional tillage	110.1	115.6	2.74	2.50	2.64	2.51
LSD (𝑃=0.05)	8.1	7.7	NS	NS	0.19	0.15
No. of irrigation
3	97.8	96.7	2.31	2.11	2.26	2.12
5	107.1	111.3	2.68	2.50	2.61	2.53
7	114.8	117.3	2.88	2.72	2.72	2.61
LSD (𝑃=0.05)	4.6	3.5	0.08	0.05	0.05	0.04
Nutrient levels (N-P2O5-K2O kg ha^−1)
0-0-0	91.9	96.4	2.50	2.31	2.36	2.26
37.5-25-37.5	110.3	112.3	2.63	2.46	2.58	2.42
75-50-75	116.5	116.6	2.74	2.57	2.65	2.58
LSD (𝑃=0.05)	3.8	3.4	0.07	0.07	0.07	0.06