Response of Fertigation Under Buried Straw Layer on Growth, Yield, and Water-fertilizer Productivity of Chinese Cabbage Under Greenhouse Conditions
2019
Rasool, Ghulam | Xiangping, Guo | Zhenchang, Wang | Sheng, Chen | Alhaj Hamoud, Yousef | Javed, Qaiser
In the present study, the effect of buried straw (two levels; MS; buried straw layer and MN; no straw layer), nitrogen fertilizer (two levels: FH, 120 kg ha⁻¹ and FL, 80 kg ha⁻¹), and deficit drip irrigation with irrigation frequency of 2 days (two irrigation regimes: I₅₀; 50% and I₃₀; 30% of evapotranspiration) was investigated on a greenhouse-grown leafy cabbage for two consecutive seasons. The results indicated that in both the seasons, T₅ (MNFHI₅₀) gave higher yield when compared to all other treatments but it also utilized more water and fertilizer. On the other hand, with a 5–10% decrease in yield comparing to T₅ (MNFHI₅₀), T₂ (MBSFLI₅₀) and T₄ (MSFLI₃₀) saved 33% of fertilizer. T₄ (MBSFLI₃₀) also gave the highest water and fertilizer use efficiencies when compared to all other treatments. However, it was clearly noted that T₄ (MSFLI₃₀) treatment could save water and nitrogen without a significant decrease in fresh yield of Chinese cabbage. Hence, T₄ (MₛFLI₃₀) is the recommended strategy to manage water and nitrogen fertilizer for getting optimal leafy cabbage plant growth and yield.
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